| 1 | 0 | 3 | 4 | 3 | 4 |
2012 GMC Sierra 1500 Specs - Exterior and Interior Dimensions
| Body | Regular Cab 6.5ft bed | Regular Cab 8ft bed | Extended Cab 6.5ft bed | Extended Cab 8ft bed | Crew Cab 5.5ft bed |
| Wheelbase | 3,023 mm | 3,378 mm | 3,645 mm | 4,001 mm | 3,645 mm |
| Length | 5,225 mm | 5,705 mm | 5,847 mm | 6,330 mm | 5,847 mm |
| Width | 2,029 mm | 2,029 mm | 2,029 mm | 2,029 mm | 2,032 mm |
| Height | 1,877 mm | 1,872 mm | 1,877 mm | 1,869 mm | 1,875 mm |
| Curb Weight | 1,972 kg | 2,036 kg | 2,131 kg | 2,319 kg | 2,287 kg |
| Fuel Capacity | 98 L | 129 L | 98 L | 129 L | 98 L |
| Headroom, Row 1 | 1,052 mm | 1,052 mm | 1,046 mm | 1,046 mm | 1,046 mm |
| Shoulder Room, Row 1 | 1,656 mm | 1,656 mm | 1,656 mm | 1,656 mm | 1,656 mm |
| Hip Room, Row 1 | 1,588 mm | 1,588 mm | 1,588 mm | 1,588 mm | 1,588 mm |
| Legroom, Row 1 | 1,049 mm | 1,049 mm | 1,049 mm | 1,049 mm | 1,049 mm |
| Headroom, Row 2 | 0 mm | 0 mm | 996 mm | 996 mm | 1,029 mm |
| Shoulder Room, Row 2 | 0 mm | 0 mm | 1,659 mm | 1,659 mm | 1,656 mm |
| Hip Room, Row 2 | 0 mm | 0 mm | 1,572 mm | 1,572 mm | 1,664 mm |
| Legroom, Row 2 | 0 mm | 0 mm | 871 mm | 871 mm | 983 mm |
| Total Legroom | 1,049 mm (over 1 row) | 1,049 mm (over 1 row) | 1,920 mm (over 2 rows) | 1,920 mm (over 2 rows) | 2,032 mm (over 2 rows) |
What Our Members Are Saying about the Seat Room and Comfort of the 2012 GMC Sierra 1500
None of our members have yet commented on the seat room and comfort of the 2012 GMC Sierra 1500.
2012 GMC Sierra 1500 Regular Cab 6.5ft bed Specs - Powertrains and Tire Sizes
| Trim | Work | SLE |
| Standard Engine | 4.3L V6 OHV-2v 195 hp@4600 260 lb-ft@2800 | 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 |
| Optional Engine(s) | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 |
| 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 | ||
| Standard Transmission | 4-speed automatic | 4-speed automatic |
| Optional Transmission(s) | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic |
| Standard Drivetrain | RWD | RWD |
| Optional Drivetrain(s) | 4WD, part-time w/low range | 4WD w/low range |
| Standard Tires | 245/70R17 tires | 245/70R17 tires |
| Optional Tires | 265/70R17 tires | 275/55R20 tires |
| 265/65R18 tires | ||
| 265/70R17 tires |
2012 GMC Sierra 1500 Regular Cab 8ft bed Specs - Powertrains and Tire Sizes
| Trim | Work | SLE |
| Standard Engine | 4.3L V6 OHV-2v 195 hp@4600 260 lb-ft@2800 | 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 |
| Optional Engine(s) | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 |
| 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 | ||
| Standard Transmission | 4-speed automatic | 4-speed automatic |
| Optional Transmission(s) | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic |
| Standard Drivetrain | RWD | RWD |
| Optional Drivetrain(s) | 4WD, part-time w/low range | 4WD w/low range |
| Standard Tires | 245/70R17 tires | 245/70R17 tires |
| Optional Tires | 265/70R17 tires | 265/65R18 tires |
| 265/70R17 tires |
2012 GMC Sierra 1500 Extended Cab 6.5ft bed Specs - Powertrains and Tire Sizes
| Trim | SL / Work | SLE | SLT |
| Standard Engine | 4.3L V6 OHV-2v 195 hp@4600 260 lb-ft@2800 | 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 |
| Optional Engine(s) | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 6.2L V8 OHV-2v 403 hp@5700 417 lb-ft@4300 |
| 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 | 6.2L V8 OHV-2v 403 hp@5700 417 lb-ft@4300 | ||
| Standard Transmission | 4-speed automatic | 4-speed automatic | 6-speed manually-shiftable automatic |
| Optional Transmission(s) | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic | |
| Standard Drivetrain | RWD | RWD | RWD |
| Optional Drivetrain(s) | 4WD, part-time w/low range | 4WD w/low range | 4WD w/low range |
| Standard Tires | 245/70R17 tires | 245/70R17 tires | 265/65R18 tires |
| Optional Tires | 265/70R17 tires | 275/55R20 tires | 265/70R17 tires |
| 265/65R18 tires | 275/55R20 tires | ||
| 265/70R17 tires |
2012 GMC Sierra 1500 Extended Cab 8ft bed Specs - Powertrains and Tire Sizes
| Trim | Work | SLE | SLT |
| Standard Engine | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 |
| Standard Transmission | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic |
| Standard Drivetrain | RWD | RWD | RWD |
| Optional Drivetrain(s) | 4WD, part-time w/low range | 4WD w/low range | 4WD w/low range |
| Standard Tires | 245/70R17 tires | 245/70R17 tires | 265/65R18 tires |
| Optional Tires | 265/70R17 tires | 265/70R17 tires |
2012 GMC Sierra 1500 Crew Cab 5.5ft bed Specs - Powertrains and Tire Sizes
| Trim | SL / Work | SLE | XFE | SLT | Denali | Hybrid |
| Standard Engine | 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 | 4.8L V8 OHV-2v 302 hp@5600 305 lb-ft@4600 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 6.2L V8 OHV-2v 403 hp@5700 417 lb-ft@4300 | 6.0L V8 Hybrid OHV-2v 332 hp@5100 367 lb-ft@4100 |
| Optional Engine(s) | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 5.3L V8 OHV-2v 315 hp@5200 338 lb-ft@4400 | 6.2L V8 OHV-2v 403 hp@5700 417 lb-ft@4300 | |||
| 6.2L V8 OHV-2v 403 hp@5700 417 lb-ft@4300 | ||||||
| Standard Transmission | 4-speed automatic | 4-speed automatic | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic | 4-speed 2-mode automatic |
| Optional Transmission(s) | 6-speed manually-shiftable automatic | 6-speed manually-shiftable automatic | ||||
| Standard Drivetrain | RWD | RWD | RWD | RWD | AWD | RWD |
| Optional Drivetrain(s) | 4WD, part-time w/low range | 4WD w/low range | 4WD w/low range | 4WD w/low range | ||
| Standard Tires | 245/70R17 tires | 245/70R17 tires | 245/70R17 tires | 265/65R18 tires | 265/65R18 tires | 265/65R18 tires |
| Optional Tires | 265/70R17 tires | 275/55R20 tires | 265/70R17 tires | 275/55R20 tires | ||
| 265/65R18 tires | 275/55R20 tires | |||||
| 265/70R17 tires |
What Our Members Are Saying about the Powertrain of the 2012 GMC Sierra 1500
None of our members have yet commented on the powertrain of the 2012 GMC Sierra 1500.
What Our Members Are Saying about the Tires of the 2012 GMC Sierra 1500
None of our members have yet commented on the tires of the 2012 GMC Sierra 1500.
See TrueDelta's information for all Pickups
See TrueDelta's information for all GMC models.
