GM Service Manual Online
For 1990-2009 cars only

Instrument Panel Brightness


Object Number: 1250375  Size: A3

When the parking lamps are turned on, the interior instruments are automatically illuminated and you can adjust the brightness. Move the tab clockwise to increase brightness and counterclockwise to decrease brightness.

Courtesy Lamps

When a door is open, the courtesy lamps will automatically come on.

Dome Lamp

The dome lamp has three positions.

ON: In this position, the dome lamp is always on.

DOOR: In this position, the light automatically comes on when a door is opened. It will turn off 30 seconds after the last door is closed. If the ignition is turned on, the light turns off immediately unless a door is open.

OFF: In this position, the dome lamp is always off, even when a door is opened.

The dome lamp can be set to remain on for a preset amount of time after the ignition has been turned off. See Vehicle Personalization .

Entry Lighting

The entry lighting feature illuminates the interior of the vehicle before you enter. The interior lamps will come on for 40 seconds when you unlock the doors using the remote key buttons and the ignition is in LOCK. After 40 seconds have elapsed, the interior lamps will turn off. The lamps will turn off before 40 seconds have elapsed if you do the following:

    • Lock all doors using the remote key buttons.
    • Lock the doors manually using the lock knob.

When any door is opened, entry lighting is canceled. The interior lamps will stay on while any door is opened and turn off when all doors are closed. The interior lamps may stay on for up to 25 seconds after all doors have been closed if they have not been locked.

Front Reading Lamps

Your vehicle has reading lamps located in the dome lamp. The lamps can be turned on and off manually by pressing the side of each reading lamp when the doors are closed.

Trunk Lamp

The trunk lamp comes on when you open your trunk.

Battery Run-Down Protection

Your vehicle has a battery run-down protection feature designed to protect your vehicle's battery.

It will activate when there has been no electrical change for one hour, nothing has been turned on or off, after the ignition has been turned to ON or ACCESSORY.

At this time, all the interior lamps will turn off: dome, reading, glovebox, trunk.

The system is turned on if a door is opened, the vehicle is unlocked, or the trunk is opened. Once the system is turned on, the one hour battery protection time resets to zero and the interior lamps will continue to operate for another hour, or until the vehicle is locked.

The interior lamp system will shut down 10 seconds after your vehicle is locked using either the key or the remote key locking system. However, if an interior lamp, such as the dome lamp, has been turned on manually and is on at the time the vehicle is locked, the system will not shut down after the normal 10 seconds. The one hour battery protection will be activated instead.

The vehicle's hazard lights will continue to operate at all times.

Accessory Control

If you want the accessories to operate once the key has been removed from the ignition, you must turn the system on by either manually starting an accessory, such as turning the radio on again. This will activate a one hour timer that will operate accessories such as the radio, accessory power outlet, and windshield wipers before turning off. These actions will reset the timer to zero. Likewise, if an accessory such as the radio is turned on at any time during the one hour period, the timer is reset to zero and all accessories will continue to operate for another hour. To enable accessory control after the system has been reset, you must turn the ignition on and then off again.