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.
2007 Buick Rainier AWD L6-4.2LFACTORY OEM SERVICE PROCEDURE
Liftgate Control Module Replacement
LIFTGATE CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the liftgate trim panel.
2. Disconnect the electrical connectors (3) from the module as necessary.
3. Remove the bolts that retain the module to the liftgate.
4. Remove the module from the liftgate.
INSTALLATION PROCEDURE
1. Install the module to the liftgate.
2. NOTE: Refer to Fastener Notice.
Install the bolts that retain the module to the liftgate.
Tighten the bolts to 10 N.m (89 lb in).
3. Connect the electrical connectors (3) as necessary.
4. Install the liftgate trim panel.
5. Program the liftgate control module. Refer to Control Module References. Programming and Relearning
Factory Service Tools
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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.
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