2012 GMC Savana 2500 Service and Repair Manual

This factory service and repair manual for the 2012 GMC Savana 2500 covers a van sold in five trims, Base, LS, LT, SL and SLE, and in five body arrangements spanning 3-door and 4-door cargo and passenger layouts. Three engines are documented: the turbocharged 6.6L V8 diesel, the flex-fuel 4.8L V8 and a 6.0L V8 built for CNG or flex-fuel. Each of those carries distinct fuel and emissions specifications, and the manual keeps them apart, together with the torque values and diagnostic routines that belong to each.

Engines covered

• 6.6L V8 (403 cu in) — OHV, turbocharged, diesel
• 4.8L V8 (294 cu in) — OHV, naturally aspirated, flex-fuel
• 6.0L V8 (364 cu in) — OHV, naturally aspirated, CNG or flex-fuel

Body styles covered

• 3-door extended cargo van
• 3-door standard cargo van
• 3-door standard passenger van
• 4-door standard passenger van
• 4-door standard cargo van

Trims covered

• Base
• LS
• LT
• SL
• SLE

Known issues on the 2012 Savana 2500. Three owner complaints are recorded for the 2012 van, two against the air bags and one against visibility. Both headings are as much electrical as mechanical on this platform, and the manual treats them that way: the supplemental restraint system has its own diagnostic procedure, wiring diagram and set of service warnings, while wiper, washer and lighting circuits are traced through the body wiring schematics. Torque values for the related fasteners sit with the procedures themselves rather than in a separate table.