2018 GMC SIERRA DENALI Owners Manual

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
312 Driving and Operating 1500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
6.2L V8 – Gooseneck/Fifth-Wheel
Trailer 3.23 3 765 kg (8,300 lb) 6 804 kg (15,000 lb)
6.2L V8 – Conventional Trailer 3.42 5 398 kg (11,900 lb) 8 029 kg (17,700 lb)
6.2L V8 – Gooseneck/Fifth-Wheel
Trailer 3.42 4 763 kg (10,500 lb) 8 029 kg (17,700 lb)
1500 Series 2WD Crew Cab Short Box (b)
4.3L V6 3.23 2 495 kg (5,500 lb) 4 990 kg (11,000 lb)
5.3L V8 3.08 2 903 kg (6,400 lb) 5 443 kg (12,000 lb)
5.3L V8, 6-speed automatic
transmission 3.42 4 264 kg (9,400 lb) 6 804 kg (15,000 lb)
5.3L V8, 8-speed automatic
transmission 3.42 4 218 kg (9,300 lb) 6 804 kg (15,000 lb)
5.3L V8, 8-speed automatic
transmission with Enhanced
Towing Package 3.42 4 990 kg (11,000 lb) 7 575 kg (16,700 lb)
5.3L V8 3.73 4 990 kg (11,000 lb) 7 575 kg (16,700 lb)
6.2L V8 3.23 4 218 kg (9,300 lb) 6 804 kg (15,000 lb)
6.2L V8 3.42 5 670 kg (12,500 lb) 8 255 kg (18,200 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Driving and Operating 3131500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
1500 Series 2WD Regular Cab Long Box
4.3L V6 3.23 2 676 kg (5,900 lb) 4 990 kg (11,000 lb)
5.3L V8 – Conventional Trailer 3.08 3 084 kg (6,800 lb) 5 443 kg (12,000 lb)
5.3L V8 – Gooseneck/Fifth-Wheel
Trailer 3.08 3 039 kg (6,700 lb) 5 443 kg (12,000 lb)
5.3L V8 – Conventional Trailer 3.42 4 445 kg (9,800 lb) 6 804 kg (15,000 lb)
5.3L V8 – Gooseneck/Fifth-Wheel
Trailer 3.42 4 400 kg (9,700 lb) 6 804 kg (15,000 lb)
1500 Series 4WD Regular Cab Standard Box
4.3L V6 – Conventional Trailer 3.42 3 447 kg (7,600 lb) 5 806 kg (12,800 lb)
4.3L V6 – Gooseneck/Fifth-Wheel
Trailer 3.42 3 402 kg (7,500 lb) 5 806 kg (12,800 lb)
5.3L V8 3.08 2 994 kg (6,600 lb) 5 443 kg (12,000 lb)
5.3L V8 3.42 3 901 kg (8,600 lb) 6 350 kg (14,000 lb)
1500 Series 4WD Double Cab Standard Box
4.3L V6 – Conventional Trailer 3.42 3 221 kg (7,100 lb) 5 806 kg (12,800 lb)
4.3L V6 – Gooseneck/Fifth Wheel 3.42 3 175 kg (7,000 lb) 5 806 kg (12,800 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
314 Driving and Operating 1500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
5.3L V8 3.08 2 812 kg (6,200 lb) 5 443 kg (12,000 lb)
5.3L V8 – Gooseneck/Fifth Wheel 3.08 2 767 kg (6,100 lb) 5 443 kg (12,000 lb)
5.3L V8 – Conventional Trailer 3.42 4 173 kg (9,200 lb) 6 804 kg (15,000 lb)
5.3L V8 – Gooseneck/Fifth Wheel 3.42 4 082 kg (9,000 lb) 6 804 kg (15,000 lb)
5.3L V8, 8-speed automatic
transmission with Enhanced
Towing Package 3.42 4 899 kg (10,800 lb) 7 575 kg (16,700 lb)
5.3L V8 3.73 4 899 kg (10,800 lb) 7 575 kg (16,700 lb)
6.2L V8 – Conventional Trailer 3.23 4 128 kg (9,100 lb) 6 804 kg (15,000 lb)
6.2L V8 – Gooseneck/Fifth-Wheel
Trailer 3.23 3 901 kg (8,600 lb) 6 804 kg (15,000 lb)
6.2L V8 – Conventional Trailer 3.42 5 352 kg (11,800 lb) 8 029 kg (17,700 lb)
6.2L V8 – Gooseneck/Fifth-Wheel
Trailer 3.42 4 990 kg (11,000 lb) 8 029 kg (17,700 lb)
1500 Series 4WD Crew Cab Standard Box
5.3L V8 – Conventional Trailer 3.08 2 767 kg (6,100 lb) 5 443 kg (12,000 lb)
5.3L V8 – Gooseneck/Fifth-Wheel
Trailer 3.08 2 722 kg (6,000 lb) 5 443 kg (12,000 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Driving and Operating 3151500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
5.3L V8 – Conventional Trailer 3.42 4 128 kg (9,100 lb) 6 804 kg (15,000 lb)
5.3L V8 – Gooseneck/Fifth-Wheel
Trailer 3.42 3 674 kg (8,100 lb) 6 804 kg (15,000 lb)
5.3L V8 – 8-speed automatic
transmission with Enhanced
Towing Package - Conventional
Trailer 3.42 4 853 kg (10,700 lb) 7 575 kg (16,700 lb)
5.3L V8, 8-speed automatic
transmission with Enhanced
Towing Package – Gooseneck/
Fifth Wheel Trailer 3.42 4 627 kg (10,200 lb) 7 575 kg (16,700 lb)
5.3L V8 – Conventional Trailer 3.73 4 853 kg (10,700 lb) 7 575 kg (16,700 lb)
5.3L V8 – Gooseneck/Fifth-Wheel
Trailer 3.73 4 627 kg (10,200 lb) 7 575 kg (16,700 lb)
6.2L V8 – Conventional Trailer 3.23 4 082 kg (9,000 lb) 6 804 kg (15,000 lb)
6.2L V8 – Gooseneck/Fifth-Wheel
Trailer 3.23 3 629 kg (8,000 lb) 6 804 kg (15,000 lb)
6.2L V8 – Conventional Trailer 3.42 5 307 kg (11,700 lb) 8 029 kg (17,700 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
316 Driving and Operating 1500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
6.2L V8 – Gooseneck/Fifth-Wheel
Trailer 3.42 4 627 kg (10,200 lb) 8 029 kg (17,700 lb)
1500 Series 4WD Crew Cab Short Box (b)
4.3L V6 3.42 3 175 kg (7,000 lb) 5 806 kg (12,800 lb)
5.3L V8 3.08 2 767 kg (6,100 lb) 5 443 kg (12,000 lb)
5.3L V8 3.42 4 128 kg (9,100 lb) 6 804 kg (15,000 lb)
5.3L V8, 8-speed automatic
transmission with Enhanced
Towing Package 3.42 4 853 kg (10,700 lb) 7 575 kg (16,700 lb)
5.3L V8 3.73 4 853 kg (10,700 lb) 7 575 kg (16,700 lb)
6.2L V8 3.23 4 128 kg (9,100 lb) 6 804 kg (15,000 lb)
6.2L V8 3.42 5 307 kg (11,700 lb) 8 029 kg (17,700 lb)
1500 Series 4WD Regular Cab Long Box
4.3L V6 – Conventional Trailer 3.42 3 357 kg (7,400 lb) 5 806 kg (12,800 lb)
4.3L V6 – Gooseneck/Fifth Wheel 3.42 3 311 kg (7,300 lb) 5 806 kg (12,800 lb)
5.3L V8 – Conventional Trailer 3.08 2 948 kg (6,500 lb) 5 443 kg (12,000 lb)
5.3L V8 – Gooseneck/Fifth Wheel 3.08 2 903 kg (6,400 lb) 5 443 kg (12,000 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Driving and Operating 3171500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
5.3L V8 – Conventional Trailer 3.42 4 309 kg (9,500 lb) 6 804 kg (15,000 lb)
5.3L V8 – Gooseneck/Fifth Wheel 3.42 4 264 kg (9,400 lb) 6 804 kg (15,000 lb)
2500 Series 2WD Double Cab Standard Box
6.0L V8 3.73 4 536 kg (10,000 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 5 897 kg (13,000 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 577 kg (14,500 lb) 9 571 kg (21,100 lb)
2500 Series 2WD Crew Cab Standard Box
6.0L V8 3.73 4 445 kg (9,800 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 5 897 kg (13,000 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 486 kg (14,300 lb) 9 571 kg (21,100 lb)
2500 Series 2WD Regular Cab Long Box
6.0L V8 3.73 4 672 kg (10,300 lb) 7 530 kg (16,600 lb)
6.0L V8 (RPO UB7) 3.73 4 627 kg (10,200 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 6 577 kg (14,500 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 713 kg (14,800 lb) 9 571 kg (21,100 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
318 Driving and Operating 1500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
2500 Series 2WD Double Cab Long Box
6.0L V8 3.73 4 491 kg (9,900 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 6 532 kg (14,400 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 532 kg (14,400 lb) 9 571 kg (21,100 lb)
2500 Series 2WD Crew Cab Long Box
6.0L V8 3.73 4 400 kg (9,700 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 6 486 kg (14,300 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 441 kg (14,200 lb) 9 571 kg (21,100 lb)
2500 Series 4WD Double Cab Standard Box
6.0L V8 3.73 4 400 kg (9,700 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 5 897 kg (13,000 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 441 kg (14,200 lb) 9 571 kg (21,100 lb)
2500 Series 4WD Crew Cab Standard Box
6.0L V8 3.73 4 309 kg (9,500 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 5 897 kg (13,000 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 350 kg (14,000 lb) 9 571 kg (21,100 lb)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Driving and Operating 3191500/2500/3500 Series Pickups – SAE J2807 Compliant
Vehicle Axle Ratio Maximum Trailer
Weight (c) GCWR (a)
2500 Series 4WD Regular Cab Long Box
6.0L V8 3.73 4 536 kg (10,000 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 6 577 kg (14,500 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 577 kg (14,500 lb) 9 571 kg (21,100 lb)
2500 Series 4WD Double Cab Long Box
6.0L V8 3.73 4 354 kg (9,600 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 6 396 kg (14,100 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 396 kg (14,100 lb) 9 571 kg (21,100 lb)
2500 Series 4WD Crew Cab Long Box
6.0L V8 3.73 4 264 kg (9,400 lb) 7 530 kg (16,600 lb)
6.0L V8 – Conventional Trailer 4.10 6 305 kg (13,900 lb) 9 571 kg (21,100 lb)
6.0L V8 – Fifth-Wheel Trailer 4.10 6 305 kg (13,900 lb) 9 571 kg (21,100 lb)
3500 Series 2WD Regular Cab Long Box
6.0L V8 (Single Rear Wheels) 3.73 4 581 kg (10,100 lb) 7 530 kg (16,600 lb)
6.0L V8 (Single Rear Wheels) 4.10 6 577 kg (14,500 lb) 9 571 kg (21,100 lb)
6.0L V8 (Dual Rear Wheels) 3.73 4 445 kg (9,800 lb) 7 530 kg (16,600 lb)