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.
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HOMESERVICE MANUALSGMC2009CANYON 4D PICKUP, 2.9 9REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 75 (SUNROOF SYSTEM)REPAIR INSTRUCTIONSSUNROOF TRACK TIMING/SYNCHRONIZATION
2009 GMC Canyon 4D Pickup, 2.9 9
Sunroof Track Timing/Synchronization
2009 GMC Canyon 4D Pickup, 2.9 9SECTION Sunroof Track Timing/Synchronization
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- To reset window timing, the motor must be removed. Refer to Power Sunroof Motor Replacement .
- Open the sunroof window to the fully vented position.
- Apply even pressure to the front of the window to move it to the fully open position.
- There is a hard stop at the rear of the full open position, which will stop the left and right cables in an identical rearward position.
- Once fully open and timed, the motor may be reinstalled.
- The motor is not timed to the position of the window, as the motor will continuously run in either direction until the switch is deactivated. Once the motor is reinstalled, test sunroof for functionality. The left and right sides of the window should move, and close, simultaneously. Both rear corners of the window should appear to be the same height, in the relation to the upper frame when in the closed position.
IMPORTANT:
An improperly timed window panel can affect sunroof functionality, water test results, and windnoise. If a repair involves the removal of sunroof motor for any reason, it is recommended that the window timing be reset.
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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.