The service and repair manual for the 2012 GMC Sierra 1500 — 5.3L V8 and 4.3L V6 and 4.8L V8 and 6.2L V8 and 6.0L V8 engines, 13 trims. Matched to this exact model year, so the specifications and sequences are the ones GMC published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2012 |
|---|---|
| Engines | 5.3L V8 — 325 cu in, OHV 4.3L V6 — OHV 4.8L V8 — OHV 6.2L V8 — 376 cu in, OHV 6.0L V8 — 364 cu in, OHV |
| Trims | WT Crew Cab Pickup 4-Door · XFE Crew Cab Pickup 4-Door · SLT Crew Cab Pickup 4-Door · WT Extended Cab Pickup 4-Door · SLE Extended Cab Pickup 4-Door · Hybrid Crew Cab Pickup 4-Door +7 |
| Other 2012 Sierra 1500 variants | Sierra → |
| Federal record | 2 recalls · 143 complaints · 624 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2012 Sierra 1500 manual
03 / ContentsSections in the manual
- Quick Lookups 1,162
- General Information 1,923
- Accessories & Equipment 5,987
- Heating, Ventilation & A/C (HVAC) 391
- Body & Frame 2,068
- Brakes 939
- Restraints 320
- Drivelines & Axles 607
- Steering 466
- Electrical 4,675
- Suspension 328
- Engine Mechanical 1,411
- Transmission 950
- Engine Performance 4,949
- Front Wheel Drive Shaft to Front Hub Nut 188
- Inch Axle) 115
- Inch Axles) 52
04 / Known issuesRecalls on federal record for the 2012 Sierra 1500
- Air Bags — frontal › passenger side › inflator module · 21V051000An inflator explosion may result in sharp metal fragments striking the driver or other occupants, re.
- Air Bags — frontal › passenger side › inflator module · 21V054000An inflator explosion may result in sharp metal fragments striking the driver or other occupants, re.
Owners have filed 143 complaints and GMC has issued 624 technical service bulletins for the 2012 Sierra 1500. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2012 Sierra 1500 manual
Is this manual specific to the 2012 Sierra 1500?
Yes. It is the OEM manual matched to the 2012 model year, covering the 5.3L V8 and 4.3L V6 and 4.8L V8 and 6.2L V8 and 6.0L V8 across the WT Crew Cab Pickup 4-Door, XFE Crew Cab Pickup 4-Door, SLT Crew Cab Pickup 4-Door, WT Extended Cab Pickup 4-Door, SLE Extended Cab Pickup 4-Door, Hybrid Crew Cab Pickup 4-Door, SL Crew Cab Pickup 4-Door, SL Extended Cab Pickup 4-Door, Denali Crew Cab Pickup 4-Door, SLE Crew Cab Pickup 4-Door, SLT Extended Cab Pickup 4-Door, WT Standard Cab Pickup 2-Door, SLE Standard Cab Pickup 2-Door trims. Specifications and procedure sequences are the ones GMC published for this year.
What 2012 Sierra 1500 problems does it help with?
2 recalls are on federal record for the 2012 Sierra 1500, covering air bags. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by GMC dealers.
Does it include 2012 Sierra 1500 wiring diagrams?
Yes — the complete wiring diagrams for the 2012 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther Sierra 1500 years and 2012 GMC models
2018 Sierra 1500 · 2017 Sierra 1500 · 2016 Sierra 1500 · 2015 Sierra 1500 · 2014 Sierra 1500 · 2013 Sierra 1500 · 2011 Sierra 1500 · 2010 Sierra 1500 · 2009 Sierra 1500 · 2008 Sierra 1500 · 2007 Sierra 1500 · 2006 Sierra 1500 · all 26 years
2012 GMC Acadia · 2012 GMC Canyon · 2012 GMC Savana 1500 · 2012 GMC Savana 2500 · 2012 GMC Savana 3500 · 2012 GMC Savana 4500 · 2012 GMC Sierra · 2012 GMC Sierra 2500 HD · 2012 GMC Sierra 3500 HD · 2012 GMC Terrain · 2012 GMC Yukon · 2012 GMC Yukon XL 1500 · every 2012 model