GM Service Manual Online
For 1990-2009 cars only

Instrument Panel Brightness

The thumbwheel for this feature is located next to the exterior lamps control.

(Instrument Panel Lights): Turn the thumbwheel, located next to the exterior lamps control, up or down to brighten or dim the instrument panel lights and the radio display. This will only work if the headlamps or parking lamps are on.

To turn on the dome lamps, with the vehicle doors closed, turn the thumbwheel all the way up.

Dome Lamps

The dome lamps will come on when you open a door and will slowly dim to off when all doors are closed.

You can also turn the dome lamps on by turning the thumbwheel, located next to the exterior lamp control, all the way up. In this position, the dome lamps will remain on whether a door is opened or closed.

(Dome Override): Press this button, located below the exterior lamp control, to turn dome lamps off even when a door is opened. To return the lamps to automatic operation, press the button again and it will return to the out position. In this position, the dome lamps will come on when you open a door.

Entry Lighting and Exit Lighting

Your vehicle is equipped with an illuminated entry and exit feature.

When a door is opened, the dome lamps and puddle lamps will come on if the dome override button is in the out position. If the dome override button is pressed in, the lamps will not come on.

With exit lighting, the interior lamps will come on when you remove the key from the ignition. The lamps will not come on if the dome override button is pressed in.

Reading Lamps


Object Number: 805129  Size: A2

If your vehicle has reading lamps, press the button located next to the lamp to turn it on or off. The lamps can be adjusted to point in the direction you want.


Object Number: 805359  Size: B2

Your vehicle may also have reading lamps in other locations. To turn on or off, press the button located next to the lamp. The lamps cannot be adjusted.

Battery Run-Down Protection

This feature shuts off lights such as the dome and reading lights if they are left on for more than 20 minutes when the ignition is in lock. This will keep your battery from running down.

Instrument Panel Brightness

This feature controls the brightness of the instrument panel lights. The thumbwheel for this feature is located next to the headlamp control. Turn the thumbwheel up to adjust the instrument panel lights. Turn the thumbwheel up to return the radio display to full brightness when the headlamps or parking lamps are on. To turn on the dome lamps, turn the thumbwheel all the way up.

Exit Lighting

With exit lighting, the interior lamps will come on when you remove the key from the ignition. The lights will not come on if the dome override button is pressed in.

Entry Lighting

Your vehicle is equipped with an illuminated entry feature.

When the doors are opened, the dome lamps will come on if the dome override button is in the out position. If the dome override button is pressed in, the lamps will not come on.

Front Reading Lamps


Object Number: 805129  Size: A2

The reading lamps are located on the overhead console.

To turn on the reading lamps, press the button located next to each lamp. To turn them off, press the button again.

The lamps can be adjusted to point in the direction you want.


Object Number: 805359  Size: B2

Your vehicle may also have reading lamps in other locations. To turn the lamps on or off, press the button located next to the lamp. The lamps are fixed and cannot be adjusted.

Dome Lamps

The dome lamps will come on when you open a door.

You can also turn the dome lamps on by turning the thumbwheel, located next to the exterior lamps control, all the way up. In this position, the dome lamps will remain on whether a door is opened or closed.

You can use the dome override button, located below the exterior lamps control, to set the dome lamps to come on automatically when a door is opened, or to remain off. To turn the lamps off, press the button into the in position. With the button in this position, the dome lamps will remain off when the doors are open. To return the lamps to automatic operation, press the button again and return it to the out position. With the button in this position, the dome lamps will come on when you open a door.

Battery Run-Down Protection

This feature shuts off the dome,and reading lamps if they are left on for more than 10 minutes when the ignition is off. This will keep the battery from running down.