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.
Circuit/System Verification
- Ignition ON.
- Verify the scan tool Exterior Liftgate Window Unlatch Switch parameter changes between Active and Inactive when pressing and releasing the S141 Liftgate Window Unlatch Switch.
- If the parameter does not change
Refer to Circuit/System Testing - Liftgate Window Switch Inoperative.
- Go to next step: If the parameter changes
- If the parameter does not change
- Verify the M33 Liftgate Window Latch Assembly releases the liftgate window when pressing and releasing the S141 Liftgate Window Unlatch Switch.
- If the liftgate window does not release
Refer to Circuit/System Testing - Liftgate Window Latch Inoperative.
- Go to next step: If the liftgate window does release
- If the liftgate window does not release
- All OK.
The M33 Liftgate Window Latch Assembly will be disabled if the body control module has detected that the M45 Rear Wiper Motor is Active, verify the function of the M45 Rear Wiper Motor prior to commanding the M33 Liftgate Window Latch Assembly. Refer to Rear Wiper System Malfunction
NO RELATED
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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.