GM Service Manual Online
For 1990-2009 cars only

Caution: Fuel vapor is highly flammable. It burns violently, and that can cause very bad injuries. Do not smoke if you are near fuel or refueling the vehicle. Keep sparks, flames and smoking materials away from fuel.


Object Number: 822591  Size: B4

The tethered fuel cap is located behind a hinged fuel door on the driver's side of your vehicle.


Object Number: 822592  Size: B4

While refueling, hang the tethered fuel cap on the hook on the inside of the fuel door.

To remove the fuel cap, turn it slowly to the left (counterclockwise). The fuel cap has a spring in it; if you let go of the cap too soon, it will spring back to the right.

Caution: If you get fuel on yourself and then something ignites it, you could be badly burned. Fuel can spray out on you if you open the fuel cap too quickly. This spray can happen if the tank is nearly full, and is more likely in hot weather. Open the fuel cap slowly and wait for any "hiss" noise to stop. Then unscrew the cap all the way.

Be careful not to spill gasoline. Clean gasoline from painted surfaces as soon as possible. See Cleaning the Outside of Your Vehicle .

When you put the fuel cap back on, turn it to the right (clockwise) until you hear a clicking sound. Make sure you fully install the cap. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp .

If your vehicle has the optional Driver Information Center (DIC), the CHECK GAS CAP message will be displayed if the fuel cap is not properly reinstalled.

Notice: If you need a new fuel cap, be sure to get the right type. Your dealer/retailer can get one for you. If you get the wrong type, it may not fit properly. This may cause the malfunction indicator lamp to light and may damage the fuel tank and emissions system. See Malfunction Indicator Lamp .

Fuel Door Lock

On models having the optional theft-deterrent system, the fuel door is locked and unlocked together with the driver's power door lock. To unlock the fuel filler door, use the power door lock button or the remote keyless entry transmitter (if equipped).

If your vehicle has a fuel door lock, the fuel door can be opened manually in case of an electrical power failure.


Object Number: 806533  Size: A3

The release mechanism is on the driver's side of the vehicle, at the top of the trunk compartment. Pull the tab to release the fuel door.

Notice: Prying on a locked fuel filler door can damage it. Use the remote fuel door manual release located in the trunk in the case of a power failure.