2012 GMC TRAILeRING GUIDe

2012 GMC TRAILeRING GUIDe
2012 GMC TRAILerING GUIDE
trail e r w e ig h t rating s _ v e h icl e s e l e cti o n _ h itc h s e l e cti o n _ trail e ring ti p s
selecting A vehicle
3
Every GMC truck, crossover, SUV and
van is designed specifically for trailering,
with power, handling and convenience
features you can rely on for long hauls
and heavy loads. This guide will help
you select the GMC model that’s right for
your trailering needs, and also contains
helpful tips for loading, driving and
parking with your trailer.
GMC CANYON extended cab slE in QUICKSILVER metallic SHOWN WITH AVAILABLE EQUIPMENT
The chart below gives you an idea
of the maximum amount of weight you
can confidently and safely trailer with
different GMC model lines when your
vehicle is properly equipped. When
determining the total weight of trailer
and cargo, include the weight of any
maximum trailer weight rating (lbs) 1
1000
TERRAIN
3000
5000
7000
9000
11,000
13,000
15,000
additional passengers and optional
equipment (driver weight and base
equipment are already included). See
pages 13-19 for maximum trailer
weight ratings by specific model.
17,000
19,000
21,000
23,000
3500
ACADIA/ACADIA DENALI 52002
CANYON
SAVANA 1500 PASSENGER
YUKON XL / YUKON XL DENALI
YUKON / YUKON DENALI
6000
6200
8100
8500
YUKON XL 3/4-TON
9600
SIERRA DENALI
9600
SAVANA 2500/3500 PASSENGER
9 9003
SIERRA 1500
10,7004
SIERRA HEAVY DUTY
1
aximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. The weight of other optional equipment, passengers and cargo will
M
reduce the maximum trailer weight your vehicle can tow. See your GMC dealer for additional details. 2Requires Trailering Package (V92), which includes a factory-installed trailer hitch platform, seven-pin electrical
plug and a Heavy-Duty Cooling Package. 3Savana 3500 RWD with Duramax Diesel engine (LGH). 4Sierra 1500 Extended Cab 2WD with standard box and Max Trailering Package. 5Sierra 3500HD Regular
Cab 4WD DRW with Duramax Diesel engine (LML).
4
23,0005
VEHICLES AND HITCHES
>>
s electing the right hitch Choosing the right hitch and making the proper electrical connections
affects how your vehicle handles, corners and brakes, and allows you to alert other drivers of your
intentions. Before selecting a hitch or trailering package, you should be familiar with the weight
ratings specific to your GMC vehicle, which are detailed on pages 13-19.
> >
hitch ball
ON STEP BUMPER
s electing TRAILERING EQUIPMENt Every GMC vehicle features a variety of standard and available equipment for enhanced trailering performance. Aside from the equipment described
below, features such as heavy-duty cooling and extendable trailering mirrors may be available.
See your GMC dealer for more information on the model you’re interested in.
hitch This consists of a hitch ball mounted to a step bumper or draw bar,
commonly used for trailering light and medium loads. Hitch balls are available in a range of
sizes. Make sure that the diameter of your hitch ball matches your trailer coupler. Also check
that the ball meets or exceeds the gross trailer weight rating.1
> > weight-carrying
hitch ball
ON DRAW BAR
HITCH This is most often used for heavier trailering. This hitch type
more evenly distributes the trailer load by using spring bars to shift some of the hitch weight
forward onto the tow vehicle’s front axle, and rearward to the trailer’s axles.1
> > weight-distributing
hitch and gooseneck hitch These are designed for heavy trailering. Located in
the bed of the truck, these hitches position the trailer’s kingpin weight over or slightly in front
of the truck’s rear axle. Fifth-wheel and gooseneck hitches are most frequently used with
travel trailers, horse trailers and other large trailers.2
> >fifth-wheel
WEIGHT-DISTRIBUTING
HITCH
package An optional Heavy-Duty Trailering Equipment Package is available for
a wide variety of GMC models (and is standard on some Sierra and Yukon models). The Z82
Package includes a trailer hitch platform and may include other trailering equipment.
> > trailering
harness This allows you to connect the electrical components of your trailer, such
as signal and brake lights, to the trailering vehicle. Select Sierra models and all Yukon models
feature a seven-pin wiring harness to streamline hookup of trailer lighting and brakes, and
a bussed electrical center makes it easier to connect an electrical trailer brake controller.
> > wiring
fifth-wheel hitch
brake controller This is optional on most Sierra pickups and Yukon models.
Completely integrated within the electrical system and its antilock braking system, it allows
your trailer’s brakes to operate simultaneously with the vehicle’s brakes.
> > Integrated
gooseneck hitch
5
brakes These are required above 2000-lb trailer weight on Sierra and Yukon, and
above 1000-lb trailer weight on all other models. The most common trailer braking systems
are surge brakes (found primarily on boat trailers) and electric brakes (often used on travel
trailers, horse trailers and car haulers). Surge brakes are a self-contained hydraulic brake
system on the trailer, activated during deceleration as the trailer coupler pushes on the hitch
ball. An electric trailer brake system uses a brake control unit mounted inside the trailering
vehicle; it operates by sensing the vehicle brakes and then applying the trailer brakes.
> > trailer
See pages 13-19 for ratings.
1
2
See page 14 for ratings.
In general, a higher series number indicates
a greater load-carrying capacity. In addition, a vehicle
with a higher series number typically has a stronger
frame, more rigid chassis and higher-capacity brakes,
increasing the vehicle’s ability to trailer heavy loads.
> > series
CLOSED-CARGO VEHICLES There are two
types of GMC vehicles: open-cargo (Sierra, Canyon),
designed primarily for carrying lots of cargo; and closedcargo (Acadia, Yukon, Terrain, Savana), for carrying both
cargo and passengers. The multipurpose capabilities of
our full range of closed-cargo vehicles make them good
choices for drivers with broad driving requirements.
> > OPEN-CARGO,
6
GMC YUKON XL 3/4-ton slt in QUICKSILVER Metallic SHOWN WITH AVAILABLE EQUIPMENT
The engines in GMC vehicles are specifically designed to provide the power and performance
needed to handle light, medium or heavy loads over the long haul. They consistently deliver
the high torque ratings needed to pull heavy loads and the horsepower needed to keep you
moving down the road with confidence and control.
POwer and performance
VORTEC 5.3L V-8 VVT (LC9)
Vortec Cylinder Head Advanced cooling system
The Vortec engine’s unique
cylinder head design effectively
mixes the intake charge to
improve the air/fuel mixture
for enhanced performance.
> >
The Vortec’s cooling system
distributes equal amounts
of coolant to the cylinder case
for more efficient cooling.
balanced CrankshaftElectronic throttle control An internally balanced
crankshaft reduces stress
for enhanced durability.
An Electronic Throttle Control
system optimizes drivability
and fuel economy1 as well as
reduces emissions.
Sierra Heavy Duty models
are available with the Duramax Diesel 6.6L V-8 Turbo engine and the Allison 6-speed automatic
transmission. The Allison transmission’s target lifespan of up to 200,000 miles 2 is made
possible through the use of larger, heavier components than normally found in 1-ton pickups.
With an extraordinary 765 lb-ft of torque, the Duramax Diesel makes the 3500HD the most
powerful Sierra HD ever.
DuramaX Diesel V-8 and Allison 6-Speed Automatic transmission
ENGINE TECHNOLOGY Mile after mile, our Vortec engines reassert their reputation for
stand-up performance and innovative, breakthrough engineering. This performance all starts
with a unique cylinder head design: By developing an effective air flow velocity and path,
just as a tornado twists a column of air, the Vortec cylinder head improves the air/fuel mix
for better performance and fuel efficiency. In addition, the coil-near-plug ignition produces
a reliable spark, and a stiff engine block provides superior vibration damping.
> > VORTEC
REAR DIFFERENTIAL Many GMC models are available with an Eaton® automatic locking
rear differential, designed to improve low-speed traction of your 2WD or 4WD vehicle. The
differential engages when the speed difference between the rear tires reaches approximately
100 rpm. Once the differential engages, both rear wheels rotate at the same speed, providing
more of the driveline’s torque to the tire with better traction.
> > LOCKING
1
7
2
EPA-estimated city/hwy mpg: Sierra XFE with Vortec 5.3L V-8, 15/22; Yukon with Vortec 5.3L V-8, 15/21; Yukon XL with Vortec 5.3L V-8, 15/21.
Maintenance needs vary with different driving conditions.
For trailering, GMC recommends an automatic transmission for convenience and improved performance. Sierra
Heavy Duty trucks with the available Duramax engine are equipped with an Allison 6-speed automatic with Tow/
Haul mode, which raises upshift points to use more of the engine’s power for strong acceleration and raises
downshift points to help slow your truck using engine braking. The 6-speed automatic transmission that comes
standard on Yukon, Yukon XL, Yukon Denali and Yukon XL Denali, and is available with Sierra, includes Tow/Haul
mode. It includes a passive shift stabilization feature that helps eliminate overactive shifting, a shift schedule
to contribute to the solid shift feel, improved transmission life and overall trailering capability.
selected horsepower and torque R ATINGS
engine
hp @ rpm
torque lb-ft @ rpm
canyon
sierra
1500
sierra
denali
sierra
heavy
duty
acadia/
acadia
denali
yukon xl
yukon
xl denali
288 @ 6300
270 @ 3400
242 @ 5600
242 @ 4600
4.3l v-6 (lu3)
195 @ 4600
260 @ 2800
4.8l v-8 (l20)
302 @ 5600
305 @ 4600
5.3l v-8 (lmg) gas
315 @ 5200
335 @ 4000
320 @ 5400 320 @ 5400
335 @ 4000 335 @ 4000
5.3l v-8 (lmg) e85
326 @ 5300
348 @ 4400
326 @ 5300 326 @ 5300
348 @ 4400 348 @ 4400
280 @ 5200
295 @ 4600
300 @ 5200
320 @ 3600
310 @ 5200
334 @ 4500
5.3l v-8 (lmf)
5.3l v-8 (lc9) gas
315 @ 5200
335 @ 4000
320 @ 5400 320 @ 5400
335 @ 4000 335 @ 4000
5.3l v-8 (lc9) e85
326 @ 5300
348 @ 4400
326 @ 5300 326 @ 5300
348 @ 4400 348 @ 4400
6.0l v-8 vvt (l96)
6.0l v-8 vvt (lz1)
hybrid
332 @ 5100
367 @ 4100
6.2l V-8 VVT (l9h)
403 @ 5700 403 @ 5700
417 @ 4300 417 @ 4300
360 @ 54001
322 @ 54002
352 @ 54003
323 @ 4600
380 @ 4200
382 @ 42003
373 @ 4400
332 @ 5100
367 @ 4100
332 @ 5100
367 @ 4100
403 @ 5700 403 @ 5700
417 @ 4300 417 @ 4300
6.2l V-8 VVT (l94)
6.6l V-8 turbo
diesel (lMl)
397 @ 3000
765 @ 1600
6.6l V-8 turbo
diesel (lgh)
8
Horsepower for vehicles less than 10,000 lbs GVWR.
1
savana
264 @ 6950
222 @ 5100
3.6l v-6 vvt di (llt)
5.3l v-8 (lh9)
yukon
denali
185 @ 5600
190 @ 2800
3.0l v-6 vvt di (lfW)
3.7l i-5 vvt (llr)
yukon
182 @ 6700
172 @ 4900
2.4l i-4 vvt di (lGA)
2.9l i-4 vvt (llv)
terrain
260 @ 3100
525 @ 1600
2
Horsepower for vehicles greater than 10,000 lbs GVWR.
3
Standard and only available on Yukon XL ¾-ton models.
Select Yukon, Sierra ½-ton and Heavy Duty models and Savana
models offer an electronically controlled 6-speed automatic transmission with overdrive and
Tow/Haul mode. Sierra Heavy Duty models with the Duramax Diesel 6.6L V-8 Turbo use an
Allison 6-speed transmission with engine grade braking and Tow/Haul mode.
6 -speed transmission
An innovative Tow/Haul mode gives automatic transmissions on select models a
dual-mode shift program. This feature raises upshift points to use more of the engine’s power for
strong acceleration and raises downshift points to help slow your truck using engine braking.
T ow/Haul mode
To enable this feature, move the column shift lever to the “M”
position. The current range will appear next to the “M,” indicating the highest attainable
range with all lower gears accessible. For instance, when 4th gear is selected, 1st through
4th gears are available. By using the +/– button located on the column shift lever, the
driver can select the range of gears desired for the current driving conditions. This feature
also allows drivers to control engine and vehicle speed while going downhill by enabling
the selection of the preferred range. While using the Range Selection feature, cruise control
and Tow/Haul mode are available. This feature is standard on Yukon and Sierra HD and
available on select Sierra ½-ton and Savana models.
R ANGE SELECTION Mode
SPECIAL GMC FEATURES
trail
er sway control
On single-rear-wheel Sierra models and Yukon ½-ton models, this
system works with StabiliTrak to minimize trailer sway by applying vehicle and/or trailer brakes.
(Excludes Sierra and Yukon Hybrid models.)
The new diesel exhaust brake is an innovative standard
feature for Duramax models. Unlike the traditional “on/off” diesel exhaust brakes, the driverselectable “smart” brake varies negative torque needed based on the truck load and grade.
This helps reduce brake fade, extends brake life and gives drivers plenty of confidence when
hauling heavy loads downhill.
“SMART” exhaust BRAKING POWER
Trailering Terms
HILL START BRAKE ASSIST This feature senses potential “rollback” when braking on an incline,
and then holds full brake pressure when you lift your foot from the pedal. It gives you an extra
1.5 seconds to apply power and pull away. This peace of mind is standard on select GMC
models.
Integrated brake controller Select Sierra pickups and Yukon models offer an optional trailer
brake controller. It’s completely integrated within the vehicle’s electrical system and its antilock
braking system. It allows your trailer’s brakes to operate simultaneously with the vehicle’s brakes.
GMC vehicle headlamps are designed to provide the strong lowand high-beam output needed for confident driving at night and during inclement
weather conditions.
h igh-quality HEADLAMPS
Heated, manually extendable, power-adjustable mirrors with turn signals
in the glass are available for Sierra and Yukon XL ¾-ton.
T RAILERING mirrors
REAR-VISION CAMERA SYSTEM Make it easier to back up to a trailer or negotiate a tight space.
This available system places a monitor in your rearview mirror (or navigation screen, if
equipped) to display a view of the area behind the vehicle. The Rear-Vision Camera System
does not replace driver vision. Please use proper care when backing up.
G ross Axle Weight Rating (GAWR) This is the weight in pounds each axle is capable of
supporting. The load on each axle must not exceed its GAWR. The GAWR for each GMC vehicle
is displayed on the driver’s door or door-lock pillar label.
This is the maximum allowable weight, expressed
in pounds, of the vehicle and trailer combination, including the weight of the driver, passengers,
fuel, optional equipment and gear in the vehicle.
G ross Combination Weight Rating (GCWR)
Gross trailer weight
The weight of a loaded trailer.
trailer WEIGHT rating The trailer weight rating for any vehicle is determined by subtracting
vehicle weight from GCWR. At the trailer weight rating for a properly equipped vehicle, you
should be able to accelerate and merge with traffic, climb typical interstate grades at highway
speeds, have control on varying road surfaces and stop adequately within a reasonable distance.
headlamp
9
easY tapshifting
TRailering mirror s
This number, in pounds, is the maximum amount a
tow vehicle may weigh. Everything that contributes to the weight of the tow vehicle is featured
in this rating, including the weight of the vehicle, driver and all passengers, fuel, payload,
tongue load of the trailer, weight of hitch and all optional equipment. The GVWR is displayed
on the driver’s door or door-lock pillar label of your GMC vehicle.
Gross Vehicle Weight Rating (GVWR)
trailering terms
T ongue (or hitch) weight The tongue weight is the total amount of trailer weight that is
pressing down on the trailer hitch. Keep in mind that the way a trailer is loaded affects the
overall tongue weight and will also affect the handling of the tow vehicle when trailering.
A ll-wheel drive (AWD) This is great if you’ll be trailering over wet or snow-covered roads on
a regular basis. The Yukon Denali and Yukon XL Denali, Sierra Denali, Acadia, Acadia Denali,
Terrain and selected Savana models offer available advanced AWD designs that distribute
power to front and rear axles, allowing every wheel to provide driving power.
Rear-wheel-drive models are available on Sierra, Sierra HD, Yukon, Yukon
Denali, Canyon and Savana vehicles. The addition of cargo increases weight on the rear,
increasing traction. Rear-wheel-drive vehicles typically have lighter chassis weights, resulting in
better fuel economy1 than all-wheel-drive and four-wheel-drive vehicles. The lighter chassis also
allows you to dedicate more of the vehicle’s load-carrying capacity to cargo weight.2
R ear-wheel drive
drive types
This gives you the option of enjoying outstanding traction on demand.
Yukon, Yukon XL and Sierra are available with Autotrac (Insta-Trac is standard on Canyon) —
our automatic four-wheel-drive system. When set in Auto 4WD mode, Autotrac detects
wheel slippage and automatically transfers torque to the front wheels. When conditions
warrant, the system automatically returns to two-wheel drive.
F our-wheel drive
trailer
classification
typical examples
weight range
typical hitch type 3
typical hitch (tongue)
weight
light-duty (I)
Folding camping trailer, snowmobiles and jet-ski trailers (trailer and
cargo combined)
Up to 2000 lbs gross trailer weight
Weight-carrying hitch
10%-15% of gross trailer weight
(200 lbs maximum)
medium-duty (ii)
Single-axle trailers up to 18 ft.,
open utility trailers and small
speedboats
2001-3500 lbs gross trailer weight
Weight-carrying hitch
10%-15% of gross trailer weight
(350 lbs maximum)
heavy-duty (iii)
Dual- or single-axle trailers, larger
boats and enclosed utility trailers
3501-5000 lbs gross trailer weight
Weight-carrying hitch or
weight-distributing hitch
10%-15% of gross trailer weight
(600 lbs maximum)
extra heavy-duty (iv)
Two-horse, travel and fifth-wheel
recreational trailers
5001-10,000 lbs gross trailer
weight
Weight-distributing hitch
or fifth-wheel hitch
10%-15% of gross trailer weight
(1200 lbs maximum)
maximum heavy-duty (v)
Largest horse, travel and fifth-wheel
recreational or commercial trailers
10,001 lbs and above gross trailer
weight
Weight-distributing hitch,
fifth-wheel or gooseneck hitch
10%-15% of gross trailer weight
(1500 lbs maximum for weightdistributing hitch)
15%-25% of gross trailer weight
(3500 lbs maximum for fifth-wheel
or gooseneck hitch)
EPA-estimated mpg: Canyon Crew Cab 2WD with 2.9L I-4 engine, 18 city/25 hwy.; Savana 1500 2WD with 5.3L V-8 engine, 13 city/17 hwy.; Sierra 1500 XFE with 5.3L V-8 engine, 15 city/22 hwy.; Yukon with 5.3L V-8
engine, 15 city/21 hwy. 2Cargo and load capacity limited by weight and distribution. 3Represents minimum recommended hitches. Please refer to your trailer’s Owner’s Manual or ask your GMC sales professional.
1
10
before you trailer
chains Always attach safety chains between your vehicle and your trailer and cross them
under the tongue of the trailer so that the tongue will be less likely to drop if the trailer should
separate from the hitch. Leave enough slack in the chains so you can corner without the chains
impeding the movement of the trailer. Do not allow safety chains to drag on the ground.
> > safety
your trailer Load your trailer to attain a 10-15 percent tongue weight. A good rule
of thumb is to distribute 60 percent of the load over the front half of the trailer and evenly
from side to side. Loads sitting either too far forward or too far back in the trailer can create
unstable trailering conditions — such as trailer sway — at highway speeds and during heavy
braking. Once the trailer has been loaded and the weight is distributed properly, all cargo
should be secured to prevent the load from shifting.
> > loading
checklist Before starting out on a trip, double-check the hitch and platform, the hitch
nuts and bolts, mirror adjustments, safety chains and vehicle and trailer lights. Make sure
that a sway-control device is installed, if required, and that the device is working properly
(see charts on pages 13-19). Check tire pressure on both the tow vehicle and the trailer.
If your trailer has electric brakes, test them by manually engaging the brake controller while
the vehicle is moving slowly. Check to see that the breakaway switch, if available, is connected
and functioning properly. Finally, make certain that all loads are secure.
> > safety
on the road
braking Avoid overworking your engine when trailering by applying gradual
pressure on the accelerator. Allow your vehicle to safely reach a comfortable driving speed.
Give yourself extra time and room when merging onto highways. Braking when pulling a
trailer requires extra distance. Allow ample room to come to a safe stop. A good measure for
deter­mining a safe following distance is to allow one vehicle and trailer length between you
and the vehicle ahead for every 10 mph of speed. When braking, use firm, steady pressure
on the brake pedal.
> > accelerating /
trailer sway Sway refers to instability of the trailer relative to the trailer vehicle,
and often results from improper weight distribution, excessive speed or overloading. Other factors
can cause sway: crosswinds, poor vehicle maintenance and road conditions. Trying to steer out of
sway will likely make it worse. Speed is a major contributor to trailer sway, so you need to slow the
vehicle —braking, however, could lead to a jackknife or other loss of control. To control sway:
> > controlling
Hold the steering wheel as steady as possible.
Release the accelerator but do not touch the brake pedal.
•Activate electric trailer brakes (if equipped) by hand, until the sway condition stops.
•Use the vehicle brakes to come to a complete stop.
•
•
You should then pull your vehicle to the side of the road and attempt to determine the cause of
the instability. Check the cargo load for shifting and improper weight distribution. Check tire
pressure on the tow vehicle and trailer, and the condition of the suspension and shocks. If the
sway was caused by strong winds, wait for conditions to improve before continuing your trip.
Finally, some trailers can be equipped with anti-sway devices. Contact the manufacturer of your
trailer for availability.
11
The turning radius of a trailer is typically much
smaller than that of your vehicle; therefore, a trailer may hit
soft shoulders, curbs, trees or other objects when making
tight turns. Taking turns sharply can also cause the trailer to
strike against and damage the tow vehicle. When approaching
a sharp corner, brake sooner than normal to reduce vehicle
speed before entering the turn. Drive the vehicle slightly
past the normal turning point and then firmly turn the steering wheel. By cornering at a wider angle, both vehicle and
trailer should safely clear the inside of the turn.
> > cornering
When passing, allow additional time and distance
to safely pass the other vehicle. Signal your intention to
pass well in advance and, when reentering the lane, make
certain your trailer is clear of the vehicle you have passed.
Never pass on hills or around curves.
Prolonged driving with overheated fluids
can cause damage to your vehicle. If temperature gauges
register abnormally high, if there is a marked decrease in
power or if you hear unusual engine noises, immediately
take the following steps:
> > OVERHEATING
Pull your vehicle to the side of the road. Once stopped,
shift into park (automatic transmissions) or neutral
(manual transmissions) and apply the parking brakes.
Leave the engine running.
• •
Turn off air conditioning and other accessories to reduce
load on the engine. Roll down the windows and turn the
heater on to maximum and the fan to its highest setting.
The heater core provides a second cooling surface that
can help reduce engine temperatures.
•
If you suspect that the overheating is the result of
climbing a long, steep grade, run the engine at fast idle
(around 1500 rpm) until the temperature gauge
registers a normal reading.
•
With the vehicle in park or neutral and the parking brake
engaged and being mindful of traffic, exit your vehicle and
look for steam or leaking coolant underneath the engine.
If you see either of these, shut the engine off and allow
the engine to cool. To avoid being burned, do not attempt
to remove the radiator cap until the engine has cooled.
> > passing
> >
> >
b acking up To back up a trailer, place one hand at the
6 o’clock position on the steering wheel. To move the trailer
to the left, move your hand to the left. To move the trailer
to the right, move your hand to the right. Back up slowly,
and move the steering wheel in small increments to help
maintain control. To assist in backing up, it is helpful to
have someone outside the vehicle to guide you. Make certain you can see your spotter at all times.
dri ving on grades Before going down a steep incline,
reduce your speed and shift the transmission into a lower
gear. This provides “engine braking” and reduces the need
to brake for long periods. When driving up a steep grade,
shift to a lower gear for more torque to maintain speed
and avoid lugging. Lugging occurs when the vehicle’s engine
stutters because it needs to be in a lower gear. Crest the
hill no faster than the speed at which you want to descend
and in the gear you expect will require little braking.
Pay attention to your temperature gauges for any signs
of overheating.
on grades Parking on steep grades with a trailer
is not recommended; if you must, follow this procedure:
> > parking
Apply the brakes and shift into neutral.
Have someone block the trailer’s wheels on the
downgrade side.
•Release the brakes until the blocks absorb the load.
•Apply the parking brake and shift into park.
•
•
> > leaving
flat (dinghy)
towing capability
12
your parking spot on grades
Hold the brake pedal down and start the engine.
•Shift into gear and release the parking brake.
•Release brake and drive uphill slightly until free
from the blocks.
•Apply brakes and have someone retrieve the blocks.
•
acadia/
Acadia Denali
canyon
terrain
savana
sierra
yukon
yukon xl
yukon denali/
xl denali
2wd
yes
no
yes
no
no
no
no
no
4wd
—
yes
—
—
yes
yes
yes
—
awd
yes
—
yes
no
no
—
—
no
GMC TR AILER WEIGHT R ATINGS 1
SIERRA 1500
AUTOMATIC TRANSMISSION RATINGS
WITH BALL HITCH
These charts specify the maximum trailer weight for your vehicle, assuming use of a weightdistributing hitch. (For fifth-wheel or gooseneck ratings, see page 14.) The maximum rating for
a weight-carrying hitch is listed below the charts. Do not exceed the maximum trailer weight
rating. When properly equipped, maximum trailer weight ratings are calculated assuming a base
vehicle, except for any option(s) necessary to achieve the rating, plus driver. The weight of other
optional equipment, passengers and cargo will reduce the maximum trailer weight your vehicle
can tow. See your GMC dealer for additional details. Some models, when loaded with the driver,
passenger and maximum tongue load, may exceed the maximum Gross Vehicle Weight Rating
(GVWR) or rear-axle weight rating for that vehicle, which is not permissible. For more information,
ask your GMC sales professional or call 1-800-GMC-8782.
VORTEC 4.3L V-6
VORTEC 4.8L V-8 FLEXFUEL
VORTEC 5.3L V-8 FLEXFUEL
VORTEC 6.0L V-8 hybrid
VORTEC 6.2L V-8 axle
ratio
max
trailer/
towing
capacity
3.42
9700
3.73
10,700
3.42
9400
3.73
10,400
3.42
9700
3.73
10,600
3.42
9400
crew CAB Short
BOX 4wd with max
trailering package
3.73
10,400
sierra denali
crew cab
short box 2wd
3.42
9600
sierra denali
crew cab
short box awd
3.42
9400
axle
ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
4800
5400
3.23
3.73
4700
7200
3.08
3.42
7400
9100
3.73
5100
3.42
6000
3.08
3.42
7100
8900
REG CAB
long BOX 2WD
3.23
3.73
4700
5200
3.23
3.73
5100
7100
3.08
3.42
7200
10,000
REG CAB
long BOX 4WD
3.73
4900
3.42
5800
3.08
3.42
7000
9800
ext. CAB
STANDARD BOX 2WD
3.23
4400
3.23
3.73
4700
6700
3.08
3.42
6900
9700
axle ratio
max
trailer/
towing
capacity
REG CAB
STANDARD BOX 2WD
3.23
3.73
REG CAB
STANDARD BOX 4WD
axle
ratio
max
trailer/
towing
capacity
ext. CAB STANDARD
BOX 2wd with max
trailering package
ext. CAB
STANDARD BOX 4WD
3.42
5500
3.08
3.42
6800
9600
ext. CAB STANDARD
BOX 4wd with max
trailering package
ext. CAB
long BOX 2WD
3.08
3.42
6700
9500
ext. CAB
long BOX 4WD
3.08
3.42
6500
9300
3.08
3.42
6800
9600
3.08
7000
crew CAB
short BOX 2WD
3.23
3.73
4700
6700
crew CAB
Short BOX 2wd xfe
3.08
6100
crew CAB Short
BOX 2wd with max
trailering package
crew CAB
Short BOX 4wd
3.42
5500
3.08
3.42
6700
9500
3.08
5900
Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. The weight of other optional equipment, passengers and cargo will reduce the maximum
trailer weight your vehicle can tow. See your GMC dealer for additional details.
1
These charts are for use with a weight-distributing hitch. When using a weight-carrying hitch, the maximum trailer weight is 5000 lbs and a 600-lb trailer tongue weight. A weight-distributing hitch-and-sway control is required for
trailer weights greater than 5000 lbs.
GENERAL TRAILERING NOTES: A seven-wire trailering harness is standard on 1500 Series models. Where available, the Heavy-Duty Trailering Equipment Package (Z82) provides a trailer hitch platform and a seven-pin sealed
connector at the rear bumper. WEIGHT-DISTRIBUTING HITCH NOTES: Trailer tongue weight should be 10 percent to 15 percent of total loaded trailer weight. For 1500 Series models, trailer tongue weight should be up to 1100
lbs. The addition of trailer tongue weight must not cause vehicle to exceed Rear Gross Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). 1500 SERIES MODEL NOTES: For automatic transmission models, an
additional transmission oil cooler (KNP) is available.
GMC TR AILER WEIGHT R ATINGS ( continued )
SIERRA 1500
AUTOMATIC TRANSMISSION RATINGS
WITH gooseneck/fifth-wheel
trailer
VORTEC 4.3L V-6
VORTEC 4.8L V-8
FLEXFUEL VORTEC 5.3L V-8 FLEXFUEL
axle
ratio
max
trailer/
towing
capacity
REG CAB
STANDARD BOX 2WD
3.42
9200
REG CAB
STANDARD BOX 4WD
3.42
8200
REG CAB
long BOX 2WD
3.42
8900
REG CAB
long BOX 4WD
3.42
9700
ext. CAB
STANDARD BOX 2WD
3.42
9400
axle ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
ext. CAB STANDARD
BOX 2wd with max
trailering package
ext. CAB
standard BOX 4WD
3.42
9600
ext. CAB STANDARD
BOX 4wd with max
trailering package
ext. CAB
long BOX 2WD
3.42
9000
ext. CAB
long BOX 4wd
3.42
8100
VORTEC 6.0L V-8 hybrid
axle
ratio
max
trailer/
towing
capacity
VORTEC 6.2L V-8 axle
ratio
max
trailer/
towing
capacity
3.42
9400
3.73
10,600
3.42
9100
3.73
10,300
crew CAB
Short BOX 2wd
crew CAB
Short BOX 4wd
crew CAB Short
BOX 2wd with max
trailering package
crew cab
short box 4wd
crew CAB Short
BOX 4wd with max
trailering package
This chart is for use with fifth-wheel or gooseneck hitches. Automatic transmission ratings with Vortec 6000 engine.
GENERAL TRAILERING NOTES: A seven-wire trailering harness is standard on 1500 Series models. Where available, the Heavy-Duty Trailering Equipment Package (Z82) provides a trailer hitch platform and a seven-pin sealed
connector at the rear bumper. An eight-wire camper/fifth-wheel wiring harness (UY2) is also available and requires the Heavy-Duty Trailering Equipment Package (Z82). FIFTH-WHEEL AND GOOSENECK HITCH NOTES: Trailer kingpin
weight should be 15 percent to 25 percent of total loaded trailer weight. For 1500 Series models, the trailer kingpin weight should be up to 1500 lbs. The addition of trailer kingpin weight cannot cause vehicle to exceed Rear Gross
Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). 1500 SERIES MODEL NOTES: For automatic transmission models, an additional transmission oil cooler (KNP) is available.
14
GMC TR AILER WEIGHT R ATINGS ( continued )
SIERRA HD
AUTOMATIC TRANSMISSION
RATINGS WITH ball hitch1
VORTEC 6.0L V-8 duramax 6.6L v-8 diesel
SIERRA HD
AUTOMATIC TRANSMISSION
RATINGS WITH gooseneck/
fifth-wheel trailer1
VORTEC 6.0L V-8 duramax 6.6L v-8 diesel
axle
ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
13,000
3.73
4.10
10,200
14,700
3.73
17,800
3.73
13,000
3.73
4.10
9900
14,400
3.73
17,500
9800
13,000
3.73
13,000
3.73
4.10
9800
14,300
3.73
17,500
3.73
4.10
9700
13,000
3.73
13,000
3.73
4.10
9700
14,200
3.73
17,400
2500 denali hd
standard box 2wd
3.73
4.10
9500
13,000
3.73
13,000
3.73
4.10
9500
14,000
3.73
16,500
2500 denali hd
standard box 4wd
3.73
4.10
9300
13,000
3.73
13,000
3.73
4.10
9300
13,700
3.73
14,700
2500hd series extended
cab long box 2wd2
3.73
4.10
9700
13,000
3.73
13,000
3.73
4.10
9700
14,200
3.73
17,400
2500hd series crew cab
long box 2wd
3.73
4.10
9600
13,000
3.73
13,000
3.73
4.10
9600
14,100
3.73
16,700
2500hd series extended
cab standard box 4wd2
3.73
4.10
9500
13,000
3.73
13,000
3.73
4.10
9500
14,000
3.73
16,400
2500hd series crew cab
standard box 4wd2
3.73
4.10
9400
13,000
3.73
13,000
3.73
4.10
9400
13,900
3.73
15,800
2500hd series extended
cab long box 4wd2
3.73
4.10
9400
13,000
3.73
13,000
3.73
4.10
9400
13,900
3.73
15,700
2500hd series crew cab
long box 4wd2
3.73
4.10
9300
13,000
3.73
13,000
3.73
4.10
9300
13,800
3.73
14,700
3500hd series regular cab
long box srw 2wd
4.10
13,000
4.10
14,500
3500hd series regular cab
long box drw 2wd
3.73
4.10
9600
14,100
3.73
4.10
9600
14,100
3500hd series extended
cab long box srw 2wd3
3.73
4.10
9500
13,000
3.73
13,000
3.73
4.10
9500
14,000
3.73
17,300
3500hd series extended
cab long box drw 2wd3
3.73
4.10
9100
13,600
3.73
16,500
3.73
4.10
9100
13,600
3.73
22,800
3500hd series crew cab
standard box srw 2wd
3.73
4.10
9500
13,000
3.73
13,000
3.73
4.10
9500
14,000
3.73
17,200
3500 denali hd crew cab
standard box srw 2wd
3.73
4.10
9300
13,000
3.73
13,000
3.73
4.10
9300
13,800
3.73
17,100
3500hd series crew cab
long box srw 2wd3
3.73
4.10
9400
13,000
3.73
13,000
3.73
4.10
9400
13,900
3.73
17,300
axle
ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
2500hd series regular cab
long box 2wd2
3.73
4.10
10,200
13,000
3.73
2500hd series regular cab
long box 4wd2
3.73
4.10
9900
13,000
2500hd series extended
cab standard box 2wd2
3.73
4.10
2500hd series crew cab
standard box 2wd2
Trailer rating limited to 13,000 lbs with weight-carrying or weight-distributing hitch (conventional). 2Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 3000 lbs (1361 kg) maximum.
3
Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 3500 lbs (1587 kg) maximum.
1
GENERAL TRAILERING NOTES: A seven-wire trailering harness is standard on Sierra Heavy-Duty models. Where available, the Heavy-Duty Trailering Equipment Package (Z82) provides a trailer hitch platform and a seven-pin
sealed connector at the rear bumper. An eight-wire camper/fifth-wheel wiring harness (UY2) is also available and requires the Heavy-Duty Trailering Equipment Package (Z82). AUTOMATIC TRANSMISSION MODEL NOTE: All
automatic transmission models are equipped with an engine oil cooler (KC4) and an oil-to-air transmission oil cooler (KNP).
15
GMC TR AILER WEIGHT R ATINGS ( continued )
SIERRA HD
AUTOMATIC TRANSMISSION
RATINGS WITH ball hitch1
VORTEC 6.0L V-8 duramax 6.6L v-8 diesel
SIERRA HD
AUTOMATIC TRANSMISSION
RATINGS WITH gooseneck/
fifth-wheel trailer1
VORTEC 6.0L V-8 duramax 6.6L v-8 diesel
axle
ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
16,500
3.73
4.10
9000
13,500
3.73
22,800
3.73
16,500
3.73
4.10
8900
13,400
3.73
22,600
9700
13,000
3.73
13,000
3.73
4.10
9700
14,200
3.73
17,400
3.73
4.10
9300
13,800
3.73
16,000
3.73
4.10
9300
13,800
3.73
23,000
3500hd series extended
cab long box srw 4wd2
3.73
4.10
9200
13,000
3.73
13,000
3.73
4.10
9200
13,700
3.73
16,900
3500hd series extended
cab long box drw 4wd2
3.73
4.10
8900
13,400
3.73
18,0003
3.73
4.10
8900
13,400
3.73
22,600
3500hd series crew cab
standard box srw 4wd2
3.73
4.10
9200
13,000
3.73
13,000
3.73
4.10
9200
13,700
3.73
17,000
3500 denali hd crew cab
standard box srw 4wd2
3.73
4.10
9100
13,000
3.73
13,000
3.73
4.10
9100
13,600
3.73
16,800
3500hd series crew cab
long box drw 4wd2
3.73
4.10
8700
13,200
3.73
18,0003
3.73
4.10
8700
13,200
3.73
22,400
3500 denali hd crew cab
long box drw 4wd2
3.73
4.10
8500
13,000
3.73
18,0003
3.73
4.10
8500
13,000
3.73
22,300
axle
ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
3500hd series crew cab
long box drw 2wd2
3.73
4.10
9000
13,500
3.73
3500 denali hd crew cab
long box drw 2wd2
3.73
4.10
8900
13,400
3500hd series regular cab
long box srw 4wd2
3.73
4.10
3500hd series regular cab
long box drw 4wd2
Trailer rating limited to 13,000 lbs with weight distributing hitch (conventional).
quarter 2011.
1
2
Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 3500 lbs (1587 kg) maximum.
3
Available forth
The above chart is for use with fifth-wheel or gooseneck hitches.
GENERAL TRAILERING NOTES: A seven-wire trailering harness is standard on Sierra Heavy Duty models. Where available, the Heavy-Duty Trailering Equipment Package (Z82) provides a trailer hitch platform and a seven-pin
sealed connector at the rear bumper. An eight-wire camper/fifth-wheel wiring harness (UY2) is also available and requires the Heavy-Duty Trailering Equipment Package (Z82). AUTOMATIC TRANSMISSION MODEL NOTE: All
automatic transmission models are equipped with an engine oil cooler (KC4) and an oil-to-air transmission oil cooler (KNP). FIFTH-WHEEL AND GOOSENECK HITCH NOTES: Trailer kingpin weight should be 15 percent to 25
percent of total loaded trailer, up to 2500 lbs on single-rear-wheel (RO4) models or up to 3500 lbs on dual-rear-wheel (RO5) models. The addition of trailer kingpin weight cannot cause vehicle to exceed Rear Gross Axle Weight
Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR).
16
GMC TR AILER WEIGHT R ATINGS ( CONTINUED )
yukon
yukon
yukon
yukon
yukon
yukon
yukon
xl
hybrid
denali
xl denali
denali hybrid
VORTEC 5.3L V-8
VORTEC 6.0L V-8 vvt
VORTEC 6.0L V-8 hybrid
VORTEC 6.2L V-8 axle
ratio
max
trailer/
towing
capacity
6000
3.42
8300
5700
3.42
8100
yukon xl denali 2WD
3.42
7900
yukon xl denali aWD
3.42
7800
axle
ratio
max
trailer/
towing
capacity
5500
85001
3.08
6200
3.08
3.42
5200
82001
3.08
5900
yukon xl 1500 2WD
3.08
3.42
5100
81001
yukon xl 1500 4WD
3.08
3.42
5000
80001
yukon denali 2WD
3.08
yukon denali AWD
3.08
axle ratio
max
trailer/
towing
capacity
yukon 1500 2WD
3.08
3.42
yukon 1500 4WD
axle
ratio
max
trailer/
towing
capacity
yukon xl 2500 2WD
3.73
9600
yukon xl 2500 4WD
3.73
9400
Requires Heavy-Duty Cooling Package (K5L).
1
NOTES ON yukon, YUKON XL and yukon denali: Trailer tongue weight should be 10 percent to 15 percent of total loaded trailer weight (up to 1000 lbs). Addition of trailer tongue weight must not cause vehicle to exceed Rear Gross
Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). The Heavy-Duty Trailering Equipment Package (Z82) includes trailer hitch platform and trailer electrical connector. With 2WD models, Z82 also includes traction
control (NW7), air cleaner (K47) and locking differential (G80).
terrain
VORTEC 2.4L I-4
VORTEC 3.0L V-6 di
axle ratio
max
trailer/
towing
capacity
axle
ratio
max
trailer/
towing
capacity
terrain fwd
3.23
1500
2.77
3500
terrain awd
3.53
1500
2.77
3.39
3500
3500
Weight-distributing hitch and sway control not required.
NOTES ON TERRAIN: Trailer tongue weight should be 10 percent to 15 percent of total loaded trailer weight (up to 350 lbs). Addition of trailer tongue weight cannot cause vehicle to exceed Rear Gross Axle Weight Rating (RGAWR) or
Gross Vehicle Weight Rating (GVWR).
17
18
GMC TERRAIN slt-2 in CARBON BLACK metallic SHOWN WITH AVAILABLE EQUIPMENT
canyon
Automatic and manual
Transmission Rating with
ball hitch
VORTEC 2.9L I-4 VVT
VORTEC 3.7L I-5 VVT
max
trailer/
towing
capacity
3.42
3.73
6000
6000
5500
3.42
3.73
6000
6000
5500
3.42
4.10
6000
6000
axle
ratio
max
trailer/
towing
capacity
regular cab 2wd auto
3.73
3400
3.73
4000
regular cab 4wd auto
3.73
3100
3.73
4000
extended cab 2wd auto
3.73
3200
3.73
5500
extended cab 4wd auto
3.73
2900
3.73
5500
crew cab 2wd auto
3.73
3000
3.73
3.73
crew cab 4wd auto
regular cab 2wd manual
3.73
2400
regular cab 4wd manual
3.73
2100
VORTEC 5.3L V-8
axle
ratio
axle ratio
max
trailer/
towing
capacity
This chart is for use with a weight-distributing hitch. When using a weightcarrying hitch, the maximum trailer weight is 5000 lbs with a 500-lb tongue
weight. A weight-distributing hitch-and-sway control is required for trailer
weights greater than 5000 lbs.
NOTES ON CANYON: Trailer tongue weight should be 10 percent to 15 percent
of total loaded trailer weight (up to 750 lbs). Addition of trailer tongue weight
cannot cause vehicle to exceed Rear Gross Axle Weight Rating (RGAWR) or
Gross Vehicle Weight Rating (GVWR). The standard base cooling system
includes all content required to attain maximum trailer rating. No optional
cooling equipment available.
acadia/
acadia denali
gm 3.6L v-6 vvt di
axle ratio
max
trailer/
towing
capacity
2wd
3.16
5200
awd
3.16
5200
Weight-distributing hitch-and-sway control not required.
NOTES ON ACADIA: Trailer tongue weight should be 10 percent to 15 percent of total loaded trailer weight (up to 600 lbs). Addition of trailer tongue weight
must not cause vehicle to exceed Rear Gross Axle Weight Rating (RGAWR) or Gross Vehicle Weight Rating (GVWR). The standard base cooling system
includes all content required to attain maximum trailer rating. No optional cooling equipment available.
savana
VORTEC 4.8L v-8
axle ratio
max
trailer/
towing
capacity
1500 2wd/awd
VORTEC 5.3L v-8
axle ratio
max
trailer/
towing
capacity
3.42
3.73
6200/6000
6200/6000
VORTEC 6.0L V-8
axle ratio
max
trailer/
towing
capacity
2500
3.42
6700
3.42
9600
3500 (135wb/155wb)
3.42
NA/NA
3.42
9700/9300
duramax 6.6L v-8
axle ratio
max
trailer/
towing
capacity
3.54
9900/9700
This chart is for use with a weight-distributing hitch. When using a weight-carrying hitch, the maximum trailer weight is 4000 lbs with a 400-lb tongue weight. A weight-distributing hitch-and-sway control is required for trailer
weights greater than 4000 lbs.
NOTES ON SAVANA: Trailer tongue weight should be 10 percent to 15 percent of total loaded trailer weight (up to 1000 lbs). Addition of trailer tongue weight cannot cause vehicle to exceed Rear Gross Axle Weight Rating (RGAWR) or
Gross Vehicle Weight Rating (GVWR). The standard base cooling system includes all content required to attain maximum trailer rating. No optional cooling equipment available. The Heavy-Duty Trailering Equipment Package (Z82)
includes trailer hitch platform and seven-wire trailer wiring harness.
19
20
GMC SAVANA in PURE SILVER metallic SHOWN WITH AVAILABLE EQUIPMENT
TRAILERING WITH YOUR GMC: GMC vehicles are built strong and durable to handle the demands of trailering. Certain equipment that prepares a GMC vehicle for trailering is standard: a large fuel tank, a high-capacity alternator and a front
stabilizer bar. For other available trailering-related equipment, talk to your dealer. You’ll need a hitch, of course, and a wide selection of hitch types is available, either as factory equipment or from your dealer. In addition, if you plan to tow
frequently, you should equip your GMC vehicle with the available Trailering Package. This package includes a weight-distributing hitch platform and an electrical harness. Also required with this package are a hitch ball, a mounting
head and weight-distributing and anti-sway assemblies; these are available through aftermarket sources. Please carefully review your GMC Owner’s Manual for important safety information about trailering with your vehicle.
A WORD ABOUT THIS GUIDE: We have tried to make this guide comprehensive and factual. We reserve the right, however, to make changes at any time and without notice, in prices, colors, materials, equipment, specifications,
models and availability. Information may have been updated since the time of publication. Please check with your GMC sales professional for complete details. GMC reserves the right to lengthen or shorten the model year for
any product for any reason, or to start and end model years at different times. GMC vehicles are equipped with engines produced by different operating units of General Motors, its subsidiaries or suppliers to General Motors
worldwide. ©2011 General Motors. All rights reserved. GM, the GM logo, GMC, and the slogans, emblems, vehicle model names, vehicle body designs and other marks appearing in this guide are the trademarks and/or service
marks of General Motors, its subsidiaries, affiliates and licensors. Eaton is a trademark of Eaton Corporation.
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