GM Service Manual Online
For 1990-2009 cars only

On vehicle with a power sliding sunroof, the ignition needs to be turned to RUN, or the Retained Accessory Power (RAP) must be activated to open or close the sunroof. When RAP is active, the sunroof will work for 10 minutes after the ignition is turned off, or until the driver's door is opened. See Retained Accessory Power (RAP) for more information.

Extended Cab


Object Number: 1775037  Size: A2

If your vehicle is an extended cab, the sunroof switch is located on the headliner above the rearview mirror.

Vent: From the closed position, press and hold the rear of the switch to vent the sunroof. To close the sunroof, press and hold the front of the switch.

Open: From the vent position, the sunroof can be fully opened either manually or by using the express-open feature. To open manually, press the rear of the switch to the first depression and hold until the sunroof has reached the desired position. To open using express-open, press the rear of the switch fully and release. The sunroof will move to the full open position. To stop the sunroof partway, press the switch a second time.

Close: From the vent, or open position, press and hold the front of the switch to close the sunroof.

The sunroof also has a roller sunshade that can be used to block the rays of the sun. The roller sunshade can be manually operated with the sunroof in an open or closed position. To open the sunshade, press and unlatch it, and roll it back. To close, pull it forward and latch it into the closed position.

When the sunroof is opened, an air deflector will automatically raise. The air deflector will retract when the sunroof is closed.

Crew Cab


Object Number: 1654405  Size: A2

If your vehicle is a crew cab, there are two sunroof switches located in the overhead console above the rearview mirror.

Vent: From the closed position, press the rear of the passenger's side switch to vent the sunroof. To close the sunroof, press and hold the front of the passenger's side switch.

Manual-Open/Manual-Close: To open the sunroof press and hold the rear of the driver's side switch until the sunroof reaches the desired position. To close the sunroof, press and hold the front of the driver's side switch until the sunroof reaches the desired position. When the sunroof is opened, an air deflector will automatically raise. The air deflector will retract when the sunroof is closed.

Express-Open/Express-Close: To express-open the sunroof, fully press and release the rear of the driver's side switch. The sunroof will open automatically. To stop the sunroof partway, press the switch a second time. To express-close the sunroof, fully press and release the front of the driver's side switch. The sunroof will close automatically. To stop the sunroof partway, press the switch a second time. The sunroof also has a sunshade which you can pull forward to block sun rays. The sunshade must be opened and closed manually.

Anti-Pinch Feature (Crew Cab Only): If an object is in the path of the sunroof while it is closing, the anti-pinch feature will detect the object and stop the sunroof from closing at the point of the obstruction. The sunroof will then open halfway, and the air deflector will raise. To close the sunroof once it has re-opened, refer to the Express-Close or Manual-Close functions described previously. If the sunroof is in the vent position, and there is an object in the path of the sunroof when it closing, the anti-pinch feature will detect the object and stop the sunroof. To close the sunroof once it has stopped, refer to the Vent functions described previously.

Do not leave the sunroof open for long periods of time while the vehicle is not in use. Debris can collect in the tracks and damage the sunroof operation and plug the water draining system.