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Home >> GMC >> 2005 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 196 (Sunroof System) >> Repair Instructions >> Sunroof Motor/Actuator Synchronization

Sunroof Motor/Actuator Synchronization

WARNING: This page is about a different car, the 2005 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The sunroof actuator is timed at the factory. If there is battery voltage applied to a new sunroof actuator, the pre-timed settings within the sunroof actuator are lost and cannot be reset or used to accommodate proper installation.
There should be no battery voltage applied to a new sunroof actuator until the following conditions are satisfied:
  1. The sunroof window is in a full closed position. Refer to Sunroof Track Timing/Synchronization .
  2. The power sunroof actuator is installed to the sunroof module.

Install the power sunroof actuator. Refer to Sunroof Motor/Actuator Replacement .