GM Service Manual Online
For 1990-2009 cars only

Your vehicle is equipped with a tailgate which can be swung out or opened flat. It can be locked and unlocked with the driver or passenger door power lock button or the remote keyless entry transmitter. The tailgate has power rear glass. The glass must be fully lowered to open the tailgate to its flat position.

The power roof and tailgate must both be fully closed to raise the rear glass. If the roof or tailgate are not fully closed, the words CLOSE THE ROOF or CLOSE THE TAILGATE will appear on the DIC when you try to raise the rear glass.

If the tailgate drop/swing, power roof, rear wiper and rear window defogger functions are inoperative, or SEE MANUAL- TAILGATE is displayed on the Driver Information Center, the tailgate window position needs to be reset. To reset the window position, activate the tailgate window up switch and continue to hold it for two seconds after the window is fully closed. Then activate the tailgate window down switch and continue to hold it for two seconds after the window is fully open. If this process does not restore function, see your dealer for service.

Using the Overhead Console Switch to Operate the Tailgate Rear Glass

To operate the tailgate glass using the overhead console roof switch, the ignition must be in RUN or ACCESSORY or Retained Accessory Power (RAP) must be active.

(Tailgate glass) : Press and hold this switch to fully open the tailgate glass.

To open the tailgate glass slightly, lightly press the front of the tailgate glass switch. To close the tailgate glass, press and hold the rear of the tailgate glass switch.

Using the Tailgate Key Cylinder to Operate Tailgate Glass

To open the tailgate glass, rotate the tailgate key clockwise. If the power roof is not fully closed, a counterclockwise rotation of the key will first close the roof. Return the key to neutral, then rotate it counterclockwise to close the tailgate glass after the roof has been closed.

Using the Cargo Area Window Button


Object Number: 1224573  Size: A2

Press and release the button located in the cargo area on the driver's side of the vehicle to fully lower the glass in an express mode.

The cargo area button will only lower the tailgate glass when the vehicle is in PARK (P).

Using the Remote Keyless Entry Transmitter

Press the tailgate glass button twice on the remote keyless entry transmitter to fully lower the glass in an express mode.

Opening the Tailgate

To open the tailgate, the vehicle must be in PARK (P) and the doors must be unlocked. To open the tailgate to a flat position, the tailgate glass must first be fully lowered. Once the tailgate glass has been fully lowered, open the tailgate by grasping its handle near the middle and pulling the gate toward you.

To close the tailgate, use the integrated pocket at the top of the tailgate. Firmly push the tailgate upward until it latches. Do not grab the wiper arm/blade to close the tailgate.

Notice: Closing the tailgate using the wiper arm/blade may damage the vehicle. Close the tailgate using only the pocket.

To swing the tailgate out, grasp the tailgate by its handle near the driver's side. If the tailgate glass is fully closed, it will first drop slightly to clear the upper roof seal. The tailgate may then be swung out. If you release the handle before the tailgate opens, the glass will return to the fully closed position.

To close the tailgate, firmly push it toward the vehicle until it latches. If the tailgate glass was fully closed when you opened the tailgate, it will return to a fully closed position when you close the tailgate.

Tailgate Prop Rod


Object Number: 1225334  Size: B3

The tailgate is equipped with a prop rod to aid in supporting heavy loads and to support four foot by eight foot building material when placed in the secondary position. In the secondary position, the tailgate is raised approximately six degrees. With the tailgate in the flat position, remove the prop rod from the retaining clip on the driver's side. Rotate the rod forward and engage the end of the slotted stud on the side of the vehicle opening. Push down to lock the rod in place. Two slotted studs on the vehicle provide two positions for the tailgate. The prop rod must be in the stowed position and secured in the retaining clip before closing the tailgate.

Notice: Loading heavy objects (greater than 250 lbs (113 kg)) onto or across the lowered tailgate without using the prop rod can damage the tailgate. Use the prop rod when loading heavy objects onto or across the lowered tailgate and any time the vehicle is driven with the tailgate lowered.

Place the building materials on the secondary position supports and the side position supports.

Secondary Position Supports


Object Number: 1225316  Size: B3

Side Position Support


Object Number: 1225324  Size: B3