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.
2008 Pontiac Grand Prix V6-3.8LFACTORY OEM SERVICE PROCEDURE
Electronic Compass Calibration
Electronic Compass Calibration
Compass Calibration
Before calibrating the compass, drive the vehicle to an area that is magnetically clean (free of large metallic objects).
1. Turn ON the ignition.
2. Press the MODE button in order to advance to the COMPASS CALIBRATION mode.
3. Press the SELECT button in order to display PRESS RESET TO RECALIBRATE.
4. Press the RESET button.
5. Drive the vehicle in circles at a speed of less than 10 MPH (16 km/h) until the DIC displays CALIBRATION COMPLETE and the compass displays the proper vehicle heading. The calibration procedure is now complete.
Compass Magnetic Variation Adjustment
Magnetic variation adjustments are required when the compass displays a constant error in heading. Variation is the difference between magnetic north and true north due to geographical location.
1. Locate your geographic location. Refer to the variation zone map.
2. Turn ON the ignition, with the engine OFF.
3. Press the MODE button in order to advance to the COMPASS CALIBRATION mode.
4. Press the SELECT button in order to display RESET CHANGES ZONE.
5. Press the RESET button in order to advance to the proper zone number.
6. Press the MODE button in order to enter and set the zone number.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.