GM Service Manual Online
For 1990-2009 cars only

Instrument Panel Brightness

Instrument panel light brightness can be adjusted by turning the exterior lamps control counterclockwise and clockwise.

Courtesy Lamps

When any door is opened, several lamps go on. They make it easy for you to enter and leave your vehicle. You can also turn these lamps on by turning the exterior lamps control clockwise all the way past the normal stop.

Entry Lighting

When you open either front door or press the button with the unlock symbol on the remote keyless entry transmitter, the lamps inside your vehicle will turn on. These lamps will turn off after about 40 seconds. These lamps will also turn off if you start the engine or activate the power door locks.

Delayed Entry Lighting

When you open the door, the interior lamps will come on. When you close the door with the ignition off, the interior lamps will stay on for 25 seconds or until the ignition is turned to an on position. Locking the doors with the power door lock switch will override the delayed entry lighting feature and the lamps will turn off right away.

Using the remote keyless entry transmitter to lock the door will not cancel delayed lighting.

Theater Dimming

This feature allows for a three to five-second fade out of the courtesy lamps instead of immediate turn off.

Delayed Exit Lighting

With this feature, the interior lamps will come on for 25 seconds after you remove the key from the ignition. This will give you time to find the door handle or lock switches.

Parade Dimming

This feature prohibits the dimming of your instrument panel displays during daylight while your headlamps are on. This feature operates with the light sensor for the Twilight Sentinel and is fully automatic. When the light sensor reads darkness outside, you will be able to dim your instrument panel displays once again.

Perimeter Lighting

When the button with the unlock symbol on the remote keyless entry transmitter is pressed, the DRL, parking lamps and back-up lamps will come on if it is dark enough outside.

This feature will only be activated when the security feedback feature is programmed to be in Modes 1, 3 or 5 on the transmitter. Modes 0, 2 and 4 do not respond with exterior lights flashing when unlocking the vehicle so perimeter lighting will not be active.

This feature can be programmed on or off for each transmitter.

To turn the feature off do the following:

  1. Press and hold LOCK on the driver's door lock switch throughout this procedure. All doors will lock.
  2. Press the remote alarm button on the transmitter to enter the programming mode. Perimeter lighting remains on at this time and the horn will chirp two times.
  3. Press the remote alarm button on the transmitter again. Perimeter lighting is disabled and the horn will chirp one time.
  4. Release the door lock switch. The perimeter lighting feature is now off.

To turn the feature on do the following:

  1. Press and hold LOCK on the driver's door lock switch throughout this procedure. All doors will lock.
  2. Press the remote alarm button on the transmitter to enter the programming mode. Perimeter lighting remains off at this time and the horn will chirp one time.
  3. Press the remote alarm button on the transmitter again. Perimeter lighting is now enabled and the horn will chirp two times.
  4. Release the door lock switch. The perimeter lighting feature is now on.

Perimeter lighting can also be activated through the DIC. See DIC Vehicle Personalization or Driver Information Center (DIC) .

Front Reading Lamps


Object Number: 810889  Size: B2

The front reading lamps, located on the headliner, and the interior courtesy lamps will come on when you open a door. They will turn off when you turn on the ignition.

To turn on the front reading lamps when the doors are closed, press the button behind the lamp you want to turn on. Press it again to turn the lamp off.

These lamps work even when the ignition is off.

Rear Reading Lamps


Object Number: 810892  Size: B2

To turn on a rear reading lamp, press the button above that rear door. To turn off the reading lamp, press the button again.

Trunk Lamp

When you open the trunk to its full open position, a lamp will come on inside the trunk. This lamp will automatically turn off when the trunk is closed.

Glove Box Lamp

When you open the glove box, a lamp will come on inside the glove box. This will automatically turn off when the glove box is closed.

Battery Rundown Protection

This feature shuts off all lamps that are left on for more than 10 minutes when the ignition is off. This will keep your battery from running down.