2015 GMC Sierra Service and Repair Manual
This factory service and repair manual for the 2015 GMC Sierra reflects a year in which both V8s could be ordered on gasoline or flex fuel: the 325-cubic-inch 5.3L and the 376-cubic-inch 6.2L, each naturally aspirated with overhead valves. The truck appears here in four-door crew cab and two-door standard cab form, in All Terrain, Denali, SLE and SLT trim, with specifications, torque values, wiring diagrams and diagnostics grouped by system across all of it.
Engines covered
- 5.3L V8 (325 cu in) — OHV, naturally aspirated, flex-fuel or gasoline
- 6.2L V8 (376 cu in) — OHV, naturally aspirated, flex-fuel or gasoline
Body styles covered
- 4-door crew cab pickup
- 2-door standard cab pickup
Trims covered
- All Terrain
- Denali
- SLE
- SLT
Known issues on the 2015 Sierra. The federal record for this model year lists eight recalls. Electric power steering assist could vanish for a moment and then return abruptly, unsettling the wheel at low speed. Vacuum for the brake booster could fall away as the pump wore, lengthening stops. A roof-rail air bag inflator could shed its end cap or split at the sidewall, releasing compressed gas and firing hardware into the cabin. Owners logged 814 complaints, led by service brakes at 209, exterior lighting at 117 and power train at 103, all covered here in procedure and diagnosis.
General Motors is recalling certain 2014 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, and 2015 model year Cadillac Escalade and Escalade ESV; Chevrolet Silverado HD; and GMC Sierr
The overheated exhaust components may melt nearby plastic parts and may result in an engine fire.
General Motors will notify owners, and dealers will reprogram the engine control module, free of cha
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra trucks manufactured January 24, 2014, to February 26, 2014, 2015 Chevrolet Suburban vehicles manufa
If stuck in the "Start" position, the ignition may suddenly snap back into the "Accessory" position,
GM will notify owners, and dealers will replace the ignition lock housing, free of charge. The rec
This informational bulletin provides information on the temporary tire flat spotting condition.
This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak noise originating from the rear of the vehicle.
THIS INFORMATIONAL BULLETIN PROVIDES THE TECHNICIAN WITH WHAT MAY HAPPEN TO AN ENGINE DUE TO LACK OF MAINTENANCE.
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE ALLISON LCT1000 VALVE BODY PART NUMBER 24262535 HAS BEEN PLACED ON RESTRICTION THROUGH GENERAL MOTORS PRODUCT QUALITY CENTER. DEALER WILL NEED TO CALL GENERAL MOTORS PROD
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT MAY HAVE BLACK SMOKE ON A COLD START. A DUAL-PULSE INJECTION STRATEGY IS UTILIZED DURING ENGINE COLD START TO REDUCE THE TIME REQUIRED TO B
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A COLD ENGINE TICK NOISE FOR 50 SECONDS AT START UP. TECHNICIAN DETERMINES IF THE TICK NOISE IS POSSIBLY COMING FROM THE EXHAUST
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN WITH THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLE THAT MAY HAVE A CONCERN WITH NAVIGATION ICON NOT SHOWING THE CORRECT LOCATION THEN JUMPING TO THE CORRECT L
Showing the 8 most recent of 51 technical service bulletins on file with NHTSA.
DRIVING NORTH ON THE GARDEN STATE PARKWAY IN THE CENTER LANE IT FELT LIKE I HAD A BACK TIRE BLOWOUT BUT WHAT HAPPENED WAS MY REAR AXLE BROKE CAUSING MY VEHICLE TO BE EXTREMELY HARD TO CONTROL. I WAS
The contact owns a 2015 GMC Sierra 1500. The contact stated her husband was driving when the vehicle in front of them applied the brakes unexpectedly, the driver depressed the brake pedal but failed t
TL* 2015 GMC SIERRA. WHILE THE VEHICLE WAS PARKED, IT BEGAN TO COAST BACKWARDS AND COLLIDED INTO THE SIDE OF A BUILDING WITHOUT WARNING. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLI
TL* 2015 GMC SIERRA. WHILE THE VEHICLE WAS PARKED, IT BEGAN TO COAST BACKWARDS AND COLLIDED INTO THE SIDE OF A BUILDING WITHOUT WARNING. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLI
The contact owns a 2015 GMC Sierra. The contact stated that when doing the initial start, the rear of the vehicle began smoking and caught on fire. The contact turned off the vehicle and the fire sett
Showing the 5 most serious of 67 complaints filed with NHTSA.
