GM Service Manual Online
For 1990-2009 cars only

Notice: Leaving the retractable hardtop down and exposing the interior of the vehicle to outdoor conditions may cause damage. Always close the retractable hardtop if leaving the vehicle outdoors.

Notice: Lowering the top if it is damp, wet, or dirty can cause stains, mildew, and damage to the inside of your vehicle. Dry off the top before lowering it.

Notice: If you lower the retractable hardtop in cold weather (32°F/0°C or lower), you may damage top components. Do not lower the retractable hardtop in cold weather.

  1. Park on a level surface, and shift the transmission into (P) Park. The vehicle must be in (P) Park, and the engine must be running, or the ignition turned to the ON/RUN position, to operate the retractable hardtop.

  2. Object Number: 1753231  Size: B3
  3. The trunk cargo cover must be fully closed, and the trunk must be closed before lowering the hardtop.
  4. There should be nothing on top, in front of or around the hardtop or cargo cover.
  5. Caution: When the retractable hardtop is opened or closed, people can be injured by the parts that move: the hardtop and its mechanism, the trunk lid, and the side windows. Keep people away from these parts when you are lowering or raising the top.

    Caution: If the retractable hardtop is not completely opened or closed, the system will cause the retractable hardtop to slowly descend after 3 minutes. You or others could be injured. The retractable hardtop will descend immediately if the ignition is turned to LOCK/OFF during the opening or closing of the retractable hardtop. Always completely open or close the retractable hardtop and do not shut off the ignition during the opening or closing of the retractable hardtop.


    Object Number: 1546279  Size: A2
  6. The hardtop switch is located on the headliner between the front reading lamps.

To lower the hardtop, press and hold the switch rearward until the cycle is complete.


Object Number: 1753235  Size: B3

The windows and trunk lid will open. The hardtop will automatically lower, and the trunk lid will close and latch. If the engine is on, a chime will sound when the hardtop has lowered completely. The Driver Information Center (DIC) will display TOP MOVE COMPLT. See DIC Warnings and Messages for more information.

After the hardtop has lowered completely, release the switch. If you continue to press the switch for about two seconds after the hardtop has completely lowered, the windows will automatically close.

If pressure is released from the switch before the hardtop cycle is complete, the cycle will stop and the Driver Information Center (DIC) will display the TOP NOT SECURE message. Always press and hold the switch until a chime sounds, if the engine is on, and the Driver Information Center (DIC) displays the TOP MOVE COMPLT to signal the procedure is complete. See DIC Warnings and Messages for more information.

The hardtop will not operate if the vehicle has an electrical failure. If an electrical failure occurs, see your dealer/retailer for service.

If your vehicle has an electrical failure while operating the hardtop, and must be towed to a dealer/retailer for service, your vehicle should be towed by flatbed with the vehicle facing backwards. Consult your dealer/retailer or professional towing service if you need to have your disabled vehicle towed. See Roadside Assistance Program .