The service and repair manual for the 2008 GMC Sierra 1500 — 5.3L V8 and 4.8L V8 and 4.3L V6 and 6.0L V8 and 6.2L V8 engines, 11 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 | 2008 |
|---|---|
| Engines | 5.3L V8 — 325 cu in, OHV 4.8L V8 — OHV 4.3L V6 — OHV 6.0L V8 — 364 cu in, OHV 6.2L V8 — 376 cu in, OHV |
| Trims | WT Crew Cab Pickup 4-Door · SL Crew Cab Pickup 4-Door · SLT Crew Cab Pickup 4-Door · SL Extended Cab Pickup 4-Door · Denali Crew Cab Pickup 4-Door · WT Extended Cab Pickup 4-Door +5 |
| Other 2008 Sierra 1500 variants | Sierra → |
| Federal record | 2 recalls · 439 complaints · 410 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2008 Sierra 1500 manual
03 / ContentsSections in the manual
- Quick Lookups 1,157
- General Information 1,889
- Accessories & Equipment 4,751
- Heating, Ventilation & A/C (HVAC) 378
- Body & Frame 1,941
- Brakes 1,121
- Restraints 396
- Drivelines & Axles 623
- Steering 236
- Electrical 3,870
- Suspension 235
- Engine Mechanical 1,264
- Transmission 1,368
- Engine Performance 2,596
- Front 177
04 / Known issuesRecalls on federal record for the 2008 Sierra 1500
- Air Bags — frontal › passenger side › inflator module · 21V052000An inflator explosion may result in sharp metal fragments striking the driver or other occupants, re.
- Air Bags — frontal › passenger side › inflator module · 21V050000An inflator explosion may result in sharp metal fragments striking the driver or other occupants, re.
Owners have filed 439 complaints and GMC has issued 410 technical service bulletins for the 2008 Sierra 1500. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2008 Sierra 1500 manual
Is this manual specific to the 2008 Sierra 1500?
Yes. It is the OEM manual matched to the 2008 model year, covering the 5.3L V8 and 4.8L V8 and 4.3L V6 and 6.0L V8 and 6.2L V8 across the WT Crew Cab Pickup 4-Door, SL Crew Cab Pickup 4-Door, SLT Crew Cab Pickup 4-Door, SL Extended Cab Pickup 4-Door, Denali Crew Cab Pickup 4-Door, WT Extended Cab Pickup 4-Door, SLE Crew Cab Pickup 4-Door, SLT Extended Cab Pickup 4-Door, SLE 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 2008 Sierra 1500 problems does it help with?
2 recalls are on federal record for the 2008 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 2008 Sierra 1500 wiring diagrams?
Yes — the complete wiring diagrams for the 2008 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 2008 GMC models
2014 Sierra 1500 · 2013 Sierra 1500 · 2012 Sierra 1500 · 2011 Sierra 1500 · 2010 Sierra 1500 · 2009 Sierra 1500 · 2007 Sierra 1500 · 2006 Sierra 1500 · 2005 Sierra 1500 · 2004 Sierra 1500 · 2003 Sierra 1500 · 2002 Sierra 1500 · all 26 years
2008 GMC Acadia · 2008 GMC C4500 Topkick · 2008 GMC C5500 Topkick · 2008 GMC C6500 Topkick · 2008 GMC C7500 Topkick · 2008 GMC C8500 Topkick · 2008 GMC Canyon · 2008 GMC Envoy · 2008 GMC Savana 1500 · 2008 GMC Savana 2500 · 2008 GMC Savana 3500 · 2008 GMC Sierra · every 2008 model