Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 GMC Terrain FWD L4-2.4LFACTORY OEM SERVICE PROCEDURE
Service Procedure
Service Procedure
1. Locate the Tire and Information Label on the driver's door. Capture tire type and placard values.
2. Enter tire type and placard values into the body control module (BCM) using GDS2.
1. Select Configuration/Reset Functions from the GDS2 screen.
2. Select Tire Type/Pressure Selection from the GDS2 screen.
3. Read information on the Tire Type/Pressure Selection screens.
4. Select Front Tire Pressure on Placard from the Tire Type/Pressure Selection screen.
5. Enter tire pressure value. Value should equal the value retrieved from the Tire and Information Label. For example, 240kPa (35 psi).
6. Select Save Changes from the Tire Type/Pressure Selection screen.
7. Select Write Options from the Tire Type/Pressure Selection screen and then continue.
8. Select Rear Tire Pressure on Placard from the Tire Type/Pressure Selection screen.
9. Enter tire pressure value. Value should equal the value retrieved from the Tire and Information Label. For example, 240kPa (35 psi).
10. Select Save Changes from the Tire Type/Pressure Selection screen.
11. Select Write Options from the Tire Type/Pressure Selection screen and then continue.
12. After the Procedure Complete message appears on the Tire Type/Pressure screen, exit GDS2.
1. Locate the Tire and Information Label on the driver's door. Capture tire type and placard values.
2. Enter tire type and placard values into the body control module (BCM) using GDS2.
1. Select Configuration/Reset Functions from the GDS2 screen.
2. Select Tire Type/Pressure Selection from the GDS2 screen.
3. Read information on the Tire Type/Pressure Selection screens.
4. Select Front Tire Pressure on Placard from the Tire Type/Pressure Selection screen.
5. Enter tire pressure value. Value should equal the value retrieved from the Tire and Information Label. For example, 240kPa (35 psi).
6. Select Save Changes from the Tire Type/Pressure Selection screen.
7. Select Write Options from the Tire Type/Pressure Selection screen and then continue.
8. Select Rear Tire Pressure on Placard from the Tire Type/Pressure Selection screen.
9. Enter tire pressure value. Value should equal the value retrieved from the Tire and Information Label. For example, 240kPa (35 psi).
10. Select Save Changes from the Tire Type/Pressure Selection screen.
11. Select Write Options from the Tire Type/Pressure Selection screen and then continue.
12. After the Procedure Complete message appears on the Tire Type/Pressure screen, exit GDS2.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.