GM Service Manual Online
For 1990-2009 cars only

If the vehicle has a power sunroof it will only operate when the ignition is turned on, or in ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP).

The sunroof switches are located on the overhead console.


Object Number: 1855625  Size: A1

The driver side switch operates the sunshade.

Press and hold the rear of the switch to open the sunshade. Press and hold the front of the switch to close the sunshade.

Express-Open: To open the sunshade, fully press and release the rear of the driver side switch. The sunshade will automatically open. To stop the sunshade partway, press the switch a second time.

Express-Close: To close the sunshade, fully press and release the front of the driver side switch. The sunshade will automatically close. To stop the sunshade partway, press the switch a second time.

The sunshade will open automatically with the sunroof, but can also be opened manually.


Object Number: 1855623  Size: A1

The passenger side switch operates the sunroof.

Express-Open: To open the sunroof, fully press and release the rear of the passenger side switch. The sunroof will automatically open. To stop the sunroof partway, press the switch a second time.

Express-Close: To close the sunroof, fully press and release the front of the driver's side switch. The sunroof will automatically close. To stop the sunroof partway, press the switch a second time.

Comfort Stop Feature: The sunroof has a comfort stop feature which stops the sunroof from opening to the full-open position. From the comfort stop position, press the rear of the passenger side switch a second time to open the sunroof to the full-open position. On vehicles equipped with an air deflector, it automatically raises when the sunroof opens and retracts when the sunroof closes.

Vent Feature: Press and hold the front of the passenger side switch to vent the sunroof. The sunshade will automatically open approximately one and a half inches. Press and hold the rear of the passenger side switch to close the sunroof vent.

Anti-Pinch Feature

If an object is in the path of the sunroof/sunshade when it is closing, the anti-pinch feature will detect the object and stop the sunroof/sunshade from closing at the point of the obstruction. The sunroof/sunshade will then return to the full-open position. To close the sunroof/sunshade, see "Express-Close" earlier in this section.