Your biggest challenges call for a truck engineered to the highest standards. That's why GMC Sierra refuses to compromise. We design more efficiency, capability and choice into it, to help you get more out of it. That's why GMC was the first to offer a two-mode hybrid for the best fuel economy of any full-size pickup.1It's why sierra offers the widest selection of v-8 power and up to 10,700 lbs of trailering capacity.2 You expect these achievements from engineers who never say never. It's why Sierra can finish the jobs that other trucks start.
GMC. WE ARE PROFESSIONAL GRADE.
| Regular Cab Long Box: 2500HD 2WD/4x4 and 3500HD Single Rear Wheel (SRW)/Dual Rear Wheel (DRW) 2WD/4x4 |
| Extended Cab Standard Box: 2500HD 2WD/4x4 |
| Extended Cab Long Box: 2500HD 2WD/4x4 and 3500HD SRW/DRW 2WD/4x4 |
| Crew Cab Standard Box: 2500HD 2WD/4x4 and 3500HD SRW 2WD/4x4 |
| Crew Cab Long Box: 2500HD 2WD/4x4 and 3500HD SRW/DRW 2WD/4x4 |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| Ultrasonic Rear Parking Assist5 | Not Available | Optional6 | Optional6 |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| Vortec 6.0L V8, with 360 hp (322 hp with box delete and on 3500HD models) and 380 lb.-ft. of torque | Standard | Standard | Standard |
| Duramax 6.6L Turbo-Diesel V8, with 397 hp and 765 lb.-ft. of torque7 (335 hp and 685 lb.-ft. of torque with box delete) | Optional | Optional | Optional |
| Automatic locking rear differential | Optional8 | Optional8 | Standard |
| Exhaust brake9 | Optional | Optional | Optional |
| Oil cooler, engine: heavy-duty, external | Standard | Standard | Standard |
| Oil cooler, transmission: auxiliary, heavy-duty, external | Standard | Standard | Standard |
| Skid Plate Package: frame-mounted shield protecting front underbody, oil pan, differential case and transfer case (requires 4x4 on WT models) | Optional | Optional10 | Optional10 |
| Snow Plow Prep Package: 10-amp power for backup and roof emergency light, high-flow front bumper, Skid Plate Package and electrical relays (4x4 models only; see dealer for additional ordering information) | Optional | Optional | Optional |
| Handling/Trailering suspension | Standard | Standard | Standard |
| Z71 Off-Road suspension: 36mm shock absorbers, off-road jounce bumpers, automatic locking rear differential, Skid Plate Package and Z71 decals on rear-quarter panels (SRW models only) | Not Available | Optional11 | Optional |
| Trailering Package: trailer hitch platform, seven-wire harness, automatic locking rear differential, integrated trailer brake controller | Optional | Optional | Standard |
| Manual shift-on-the-fly transfer case (4x4 models only) | Standard | Not Available | Not Available |
| Electronic shift transfer case (4x4 models only) | Not Available | Standard | Standard |
| Six-speed automatic transmission, with Tow/Haul mode12 | Standard | Standard | Standard |
| Allison® 1000 Series, six-speed automatic transmission; with engine-grade braking and Tow/Haul mode9 | Optional | Optional | Optional |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| Driver and right-front passenger frontal air bags13 | Standard | Standard | Standard |
| Head-curtain side-impact air bags13 (2500HD) | Optional | Optional | Optional |
| Seat-mounted side-impact air bags13 for thorax and pelvic protection (2500HD) | Optional | Optional | Optional |
| Four-wheel antilock disc brakes | Standard | Standard | Standard |
| OnStar®:14Directions & Connections® Plan for the first six months | Optional | Standard | Standard |
| StabiliTrak Electronic Stability Control System (SRW models only) | Standard | Standard | Standard |
| Integrated trailer brake controller11 | Optional | Optional | Standard |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| Air conditioning: manual | Standard | Standard | Not Available |
| Air conditioning: automatic, dual-zone | Not Available | Optional5,15 | Standard |
| Rearview camera system (display in rearview mirror or nav screen if equipped) | Not Available | Optional16 | Optional17 |
| Power sunroof | Not Available | Not Available | Optional16 |
| Power, rear access door windows18 | Not Available | Standard | Standard |
| Power-sliding rear window5,19 | Not Available | Optional | Optional |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| Vinyl 40/20/40 split-bench seat with recliners | Standard | Not Available | Not Available |
| Cloth 40/20/40 split-bench seat with recliners | Optional | Not Available | Not Available |
| Premium Cloth 40/20/40 split-bench front seat with recliners, center armrest with storage and lockable underseat storage (also available with Custom Leather-appointed trim) | Not Available | Optional | Not Available |
| Premium Cloth reclining, six-way power-adjustable front bucket seats (also available with Custom Leather-appointed trim) | Not Available | Optional5 | Not Available |
| Custom Leather-appointed, reclining, heated, 10-way power-adjustable front bucket seats | Not Available | Not Available | Standard |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| AM/FM stereo | Standard20 | Not Available | Not Available |
| AM/FM stereo with CD/MP3 player | Optional | Standard | Not Available |
| AM/FM stereo with CD/MP3 player and USB port21 | Not Available | Optional15 | Standard |
| AM/FM stereo with in-dash six-disc CD/MP3 player and USB port21 | Not Available | Optional | Optional |
| Bluetooth® wireless technology22 for select phones | Optional23 | Optional24 | Standard |
| Bose® speaker system | Not Available | Optional25 | Standard |
| Rear-seat DVD entertainment system26 | Not Available | Not Available | Optional |
| Touch-screen navigation radio27 with CD/MP3 player | Not Available | Optional28 | Optional |
| Touch-screen navigation radio27 with CD/MP3/DVD player29 | Not Available | Not Available | Optional30 |
| XM Radio:31 with three trial months | Optional | Standard | Standard |
| XM NavTraffic:32 with three trial months | Not Available | Optional | Optional |
| SIERRA HD WT | SIERRA HD SLE | SIERRA HD SLT5 | |
| 17-inch painted steel (2500HD) | Standard | Not Available | Not Available |
| 17-inch chrome-clad steel (2500HD) | Optional | Not Available | Not Available |
| 17-inch machined-aluminum (2500HD) | Not Available | Standard | Not Available |
| 17-inch painted steel (3500HD DRW) | Standard | Standard | Standard |
| 18-inch painted steel (3500HD SRW, optional on 2500HD WT) | Standard | Not Available | Not Available |
| 18-inch polished forged-aluminum (2500HD) | Not Available | Optional | Standard |
| 18-inch polished forged-aluminum (3500HD SRW) | Not Available | Standard | Standard |
| 20-inch polished forged-aluminum (2500HD)33 | Not Available | Optional34 | Optional |