2012 GMC Terrain service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- SLE Sport Utility 4-Door
- SLT Sport Utility 4-Door
Engines covered
- 3.0L 182Cu. In. V6 GAS DOHC Naturally Aspirated
- 3.0L 182Cu. In. V6 FLEX DOHC Naturally Aspirated
- 2.4L 2384CC 145Cu. In. l4 GAS DOHC Naturally Aspirated
- 2.4L 2384CC 145Cu. In. l4 FLEX DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
GENERAL MOTORS (GM) IS RECALLING CERTAIN MODEL YEAR 2012 CHEVROLET EQUINOX AND GMC TERRAIN VEHICLES, MANUFACTURED FROM JULY 18, 2011, THROUGH SEPTEMBER 6, 2011, FOR FAILING TO COMPLY WITH THE REQUIRE
UNDERINFLATED TIRES CAN RESULT IN TIRE OVERLOADING AND OVERHEATING, WHICH COULD LEAD TO A BLOWOUT AN
GM DEALERS WILL UPDATE THE BODY CONTROL MODULE FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEG
General Motors, LLC (GM) is recalling certain 2010-2017 GMC Terrain vehicles. A reflection caused by the headlight housings may illuminate areas above the vehicle and outside of the driver's view wit
The bright reflection may cause a glare for other drivers, reducing their visibility and increasing
Dealers will install headlamp appliques, free of charge. Owner notification letters were mailed Sep
General Motors LLC (GM) is recalling certain model year 2016-2017 Buick Verano and 2016 Chevrolet Malibu as the electronic park lock lever may allow the ignition key to be removed without the transmis
If the key is removed without the transmission in PARK, the vehicle may rollaway as occupants are ex
GM will notify owners, and dealers will inspect and if necessary replace the key cylinder lock housi
This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the technician inspect the high pressure fuel pump body markings to confi
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This service bulletin provides information on Tire Sidewall Irregularities.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the s
Showing the 8 most recent of 768 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING ABOUT 35 MPH, THE VEHICLE WAS REAR-ENDED BY ANOTHER VEHICLE. THE DRIVER'S AIR BAG BUSTED OPEN, SMOKED AND EMITTED DEBRIS BUT D
TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING ABOUT 35 MPH, THE VEHICLE WAS REAR-ENDED BY ANOTHER VEHICLE. THE DRIVER'S AIR BAG BUSTED OPEN, SMOKED AND EMITTED DEBRIS BUT D
WE HAD BEGUN TO CROSS AN INTERSECTION AND, WHILE OUR SPEED WAS FROM A DEAD STOP, THE OTHER DRIVER BLEW THROUGH A RED LIGHT AND HIT US AT WHAT WAS PROBABLY THE SPEED LIMIT OF 40MPH. HER CAR STRUCK US
WE HAD BEGUN TO CROSS AN INTERSECTION AND, WHILE OUR SPEED WAS FROM A DEAD STOP, THE OTHER DRIVER BLEW THROUGH A RED LIGHT AND HIT US AT WHAT WAS PROBABLY THE SPEED LIMIT OF 40MPH. HER CAR STRUCK US
WE HAD BEGUN TO CROSS AN INTERSECTION AND, WHILE OUR SPEED WAS FROM A DEAD STOP, THE OTHER DRIVER BLEW THROUGH A RED LIGHT AND HIT US AT WHAT WAS PROBABLY THE SPEED LIMIT OF 40MPH. HER CAR STRUCK US
Showing the 5 most serious of 498 complaints filed with NHTSA.
