Page 345 of 542

Black plate (77,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
Driving and Operating 9-77
3. When the wheel chocks are inplace, release the regular brakes
until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking brake and shift
into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks.
7. Stop and have someone pick up and store the chocks.
Maintenance when Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See
Maintenance Schedule on
page 11-3. Things that are especially important in trailer
operation are automatic
transmission fluid, engine oil, axle
lubricant, belts, cooling system, and
brake system. It is a good idea to
inspect these before and during
the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Trailer Towing
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
If the vehicle is bi-fuel, see the
bi-fuel supplement.
Do not tow a trailer during break-in.
See
New Vehicle Break-In on
page 9-24.
{Warning
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly. For
example, if the trailer is too
heavy, the brakes may not work
well or even at all. The driver and
passengers could be seriously
injured. The vehicle may also be
damaged; the resulting repairs
would not be covered by the
vehicle warranty. Pull a trailer
only if all the steps in this section
have been followed. Ask your
dealer for advice and information
about towing a trailer with the
vehicle.
Page 346 of 542

Black plate (78,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
9-78 Driving and Operating
{Caution
Pulling a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To pull a trailer
correctly, follow the advice in this
section and see your dealer for
important information about
towing a trailer with the vehicle.
To identify the trailering capacity of
the vehicle, read the information in
“Weight of the Trailer” later in this
section.
Trailering is different than just
driving the vehicle by itself.
Trailering means changes in
handling, acceleration, braking,
durability, and fuel economy.
Successful, safe trailering takes
correct equipment, and it has to be
used properly.
The following information has many
time-tested, important trailering tips
and safety rules. Many of these are important for your safety and that of
your passengers. Read this section
carefully before pulling a trailer.
Weight of the Trailer
How heavy can a trailer safely be?
It depends on how the rig is used.
Speed, altitude, road grades,
outside temperature, and how much
the vehicle is used to pull a trailer
are all important. It can depend on
any special equipment on the
vehicle, and the amount of tongue
weight the vehicle can carry. See
“Weight of the Trailer Tongue”
later
in this section for more information.
Trailer weight rating (TWR) is
calculated assuming the tow vehicle
has only the driver but all required
trailering equipment. Weight of
additional optional equipment,
passengers, and cargo in the tow
vehicle must be subtracted from the
trailer weight rating. For kingpin weight and trailer
tongue weight information, see
“Weight of the Trailer Tongue”
later
in this section.
Use the following chart to determine
how much the vehicle can weigh,
based upon the vehicle model and
options.
Weights listed apply for
conventional trailers and fifth-wheel
trailers unless otherwise noted.
Page 347 of 542

Black plate (79,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
Driving and Operating 9-79
VehicleAxle Ratio Maximum Trailer Weight GCWR (a)
1500 Series 2WD Regular Cab Standard Box 4.3L V6 (b) 3.232 903 kg (6,400 lb) 4 990 kg (11,000 lb)
4.3L V6 (b) 4.102 223 kg (4,900 lb) 4 309 kg (9,500 lb)
5.3L V8 3.083 311 kg (7,300 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 218 kg (9,300 lb) 6 350 kg (14,000 lb)
1500 Series 2WD Double Cab Standard Box 4.3L V6 (b) 3.232 722 kg (6,000 lb) 4 990 kg (11,000 lb)
5.3L V8 3.083 130 kg (6,900 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 491 kg (9,900 lb) 6 804 kg (15,000 lb)
5.3L V8 3.735 216 kg (11,500 lb) 7 575 kg (16,700 lb)
6.2L V8 3.424 445 kg (9,800 lb) 6 804 kg (15,000 lb)
6.2L V8 3.735 443 kg (12,000 lb) 7 938 kg (17,500 lb)
1500 Series 2WD Crew Cab Standard Box
4.3L V6 (b) 3.232 631 kg (5,800 lb) 4 990 kg (11,000 lb)
5.3L V8 3.083 039 kg (6,700 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 400 kg (9,700 lb) 6 804 kg (15,000 lb)
5.3L V8 3.735 126 kg (11,300 lb) 7 575 kg (16,700 lb)
Page 348 of 542

Black plate (80,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
9-80 Driving and Operating
VehicleAxle Ratio Maximum Trailer Weight GCWR (a)
6.2L V8 3.424 355 kg (9,600 lb) 6 804 kg (15,000 lb)
6.2L V8 3.735 443 kg (12,000 lb) 7 938 kg (17,500 lb)
1500 Series 2WD Crew Cab Short Box (b) 4.3L V6 3.232 676 kg (5,900 lb) 4 990 kg (11,000 lb)
5.3L V8 3.083 084 kg (6,800 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 445 kg (9,800 lb) 6 804 kg (15,000 lb)
5.3L V8 3.735 171 kg (11,400 lb) 7 575 kg (16,700 lb)
6.2L V8 3.424 400 kg (9,700 lb) 6 804 kg (15,000 lb)
6.2L V8 3.735 443 kg (12,000 lb) 7 938 kg (17,500 lb)
1500 Series 2WD Regular Cab Long Box 4.3L V6 (b) 3.232 858 kg (6,300 lb) 4 990 kg (11,000 lb)
5.3L V8 3.083 266 kg (7,200 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 627 kg (10,200 lb) 6 804 kg (15,000 lb)
1500 Series 4WD Regular Cab Standard Box 4.3L V6 (b) 3.423 266 kg (7,200 lb) 5 443 kg (12,000 lb)
5.3L V8 3.083 221 kg (7,100 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 128 kg (9,100 lb) 6 350 kg (14,000 lb)
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Black plate (81,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
Driving and Operating 9-81
VehicleAxle Ratio Maximum Trailer Weight GCWR (a)
1500 Series 4WD Double Cab Standard Box 4.3L V6 (b) 3.423 039 kg (6,700 lb) 5 443 kg (12,000 lb)
5.3L V8 3.082 994 kg (6,600 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 354 kg (9,600 lb) 6 804 kg (15,000 lb)
5.3L V8 3.735 080 kg (11,200 lb) 7 575 kg (16,700 lb)
6.2L V8 3.424 309 kg (9,500 lb) 6 804 kg (15,000 lb)
6.2L V8 3.735 352 kg (11,800 lb) 7 938 kg (17,500 lb)
1500 Series 4WD Crew Cab Standard Box 4.3L V6 (b) 3.422 994 kg (6,600 lb) 5 443 kg (12,000 lb)
5.3L V8 3.082 948 kg (6,500 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 309 kg (9,500 lb) 6 804 kg (15,000 lb)
5.3L V8 3.735 035 kg (11,100 lb) 7 575 kg (16,700 lb)
6.2L V8 3.424 264 kg (9,400 lb) 6 804 kg (15,000 lb)
6.2L V8 3.735 307 kg (11,700 lb) 7 938 kg (17,500 lb)
1500 Series 4WD Crew Cab Short Box (b) 4.3L V6 3.423 039 kg (6,700 lb) 5 443 kg (12,000 lb)
5.3L V8 3.082 994 kg (6,600 lb) 5 443 kg (12,000 lb)
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Black plate (82,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
9-82 Driving and Operating
VehicleAxle Ratio Maximum Trailer Weight GCWR (a)
5.3L V8 3.424 354 kg (9,600 lb) 6 804 kg (15,000 lb)
5.3L V8 3.735 352 kg (11,800 lb) 7 938 kg (17,500 lb)
6.2L V8 3.424 309 kg (9,500 lb) 6 804 kg (15,000 lb)
6.2L V8 3.735 352 kg (11,800 lb) 7 938 kg (17,500 lb)
1500 Series 4WD Regular Cab Long Box
4.3L V6 (b) 3.423 175 kg (7,000 lb) 5 443 kg (12,000 lb)
5.3L V8 3.083 130 kg (6,900 lb) 5 443 kg (12,000 lb)
5.3L V8 3.424 491 kg (9,900 lb) 6 804 kg (15,000 lb)
2500 Series 2WD Crew Cab Standard Box
6.0L V8 3.734 400 kg (9,700 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 –Fifth-Wheel Trailer 4.106 441 kg (14,200 lb) 9 299 kg (20,500 lb)
2500 Series 2WD Regular Cab Long Box
6.0L V8 3.734 627 kg (10,200 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 –Fifth-Wheel Trailer 4.106 668 kg (14,700 lb) 9 299 kg (20,500 lb)
Page 351 of 542

Black plate (83,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
Driving and Operating 9-83
VehicleAxle Ratio Maximum Trailer Weight GCWR (a)
2500 Series 2WD Crew Cab Long Box 6.0L V8 3.734 354 kg (9,600 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 –Fifth-Wheel Trailer 4.106 396 kg (14,100 lb) 9 299 kg (20,500 lb)
2500 Series 4WD Crew Cab Standard Box
6.0L V8 3.734 264 kg (9,400 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 –Fifth-Wheel Trailer 4.106 305 kg (13,900 lb) 9 299 kg (20,500 lb)
2500 Series 4WD Regular Cab Long Box
6.0L V8 3.734 491 kg (9,900 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 –Fifth-Wheel Trailer 4.106 532 kg (14,400 lb) 9 299 kg (20,500 lb)
2500 Series 4WD Crew Cab Long Box
6.0L V8 3.734 218 kg (9,300 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 –Fifth-Wheel Trailer 4.106 260 kg (13,800 lb) 9 299 kg (20,500 lb)
Page 352 of 542

Black plate (84,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 8/15/13
9-84 Driving and Operating
VehicleAxle Ratio Maximum Trailer Weight GCWR (a)
3500 Series 2WD Regular Cab Long Box 6.0L V8 (Single Rear Wheels)
Conventional Trailer 4.10
5 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 (Single Rear Wheels)
Fifth-Wheel Trailer 4.10
6 577 kg (14,500 lb) 9 299 kg (20,500 lb)
6.0L V8 (Dual Rear Wheels) 3.734 354 kg (9,600 lb) 7 257 kg (16,000 lb)
6.0L V8 (Dual Rear Wheels)
Conventional Trailer 4.10
6 396 kg (14,100 lb) 9 299 kg (20,500 lb)
6.0L V8 (Dual Rear Wheels)
Fifth-Wheel Trailer 4.10
6 441 kg (14,200 lb) 9 299 kg (20,500 lb)
3500 Series 2WD Crew Cab Standard Box 6.0L V8 3.734 309 kg (9,500 lb) 7 257 kg (16,000 lb)
6.0L V8 –Conventional Trailer 4.105 897 kg (13,000 lb) 9 299 kg (20,500 lb)
6.0L V8 Fifth-Wheel Trailer 4.106 350 kg (14,000 lb) 9 299 kg (20,500 lb)
3500 Series 2WD Crew Cab Long Box 6.0L V8 (Single Rear Wheels) 3.734 264 kg (9,400 lb) 7 257 kg (16,000 lb)
6.0L V8 (Single Rear Wheels)
Conventional Trailer 4.10
5 897 kg (13,000 lb) 9 299 kg (20,500 lb)