GM Service Manual Online
For 1990-2009 cars only

Instrument Panel Brightness


Object Number: 810557  Size: A3

The lever for this feature is located to the left of the steering column.

The brightness of the instrument panel lights can be adjusted by sliding the INTERIOR lever from LO to HI.

The instrument panel lights will be on only while the parking lamps are on. The interior courtesy lamps can be turned on by sliding the INTERIOR lever all the way to HI.

Courtesy Lamps

If it is dark enough outside, when any door is opened, several lamps go on. They make it easy for you to enter and leave the vehicle. You can also turn these lamps on by sliding the INTERIOR lever all the way to the top.

Entry Lighting

If it is dark enough outside when you press the unlock button on the remote keyless entry transmitter, the interior courtesy lamps will turn on and stay on for approximately 40 seconds. The lamps will turn off immediately by pressing the lock button on the remote keyless entry transmitter, turning the ignition key to RUN or activating the power door locks.

Delayed Entry Lighting

If it is dark enough outside when you open the door, the interior lamps will turn on. When you close the door with the ignition off, the interior lamps will stay on for up to 25 seconds or until the ignition is turned to an on position. When the lamps turn off as a result of the 25 second timer or the ignition switch being turned on, the lighting will deactivate via the theater dimming effect. Locking the doors will override the delayed entry lighting feature and the lamps will turn off right away.

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

If it is dark enough outside when you remove the key from the ignition, the interior lamps will turn on and stay on for approximately 25 seconds. This will give you time to find the door pull handle or lock switches. Once the key is inserted into the ignition the exit lighting will be cancelled and the lighting will fade out.

Perimeter Lighting

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

Personal Choice Programming

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

If your vehicle is equipped with the Driver Information Center (DIC), you must use it to program this feature. See Driver Information Center (DIC) .

To turn the feature off, do the following:

  1. Close all the doors and turn the ignition on. Keep all doors closed throughout this procedure.
  2. Press and hold LOCK on the power door lock switch throughout this procedure. All the doors will lock.
  3. Press the instant alarm on the transmitter. Perimeter lighting remains on at this time and the horn will chirp two times.
  4. Press the instant alarm on the transmitter again. Perimeter lighting is disabled and the horn will chirp one time.
  5. Release the door lock switch. The perimeter lighting feature is now off.

To turn the feature on, do the following:

  1. Close all the doors and turn the ignition on. Keep all doors closed throughout this procedure.
  2. Press and hold LOCK on the power door lock switch throughout this procedure. All the doors will lock.
  3. Press the instant alarm on the transmitter. Perimeter lighting now remains off at this time and the horn will chirp one time.
  4. Press the instant alarm on the transmitter again. Perimeter lighting is now enabled and the horn will chirp two times.
  5. Release the door lock switch. The perimeter lighting feature is now on.

This procedure only changes the mode for the transmitter used to change this setting.

Front Reading Lamps


Object Number: 810602  Size: B2

The front reading lamps, located on the headliner, are turned on or off by pressing one of the buttons located near each lamp.

Inadvertent Power Battery Saver

This feature is designed to protect your vehicle's battery against drainage from the interior lamps, trunk lamp, glove box lamp, cigarette lighters or garage door opener. When the ignition is turned off, the power to these features will automatically turn off after 10 minutes. Power will be restored for an additional 10 minutes if any door is opened, the trunk is opened or the courtesy lamp switch is turned on. To restore power back to the cigarette lighters the ignition must be turned back to RUN.

Battery Load Management

The battery load management feature is designed to monitor the vehicle's electrical load and determine when the battery is in a heavy discharge condition. During times of high electrical loading, the engine may idle at a higher rpm setting than normal to make sure the battery charges. High electrical loads may occur when several of the following are on: headlamps, high beams, rear window defogger, fan at high speed, heated seats (if equipped) and engine cooling fans.

If your vehicle's battery remains in a heavy discharge condition for a long period of time, the fan, rear defogger, heated seats and heated mirrors will be disabled and the DIC will display BATTERY SAVER ACTIVE. This can happen either under long periods of idling or low speed driving with high electrical loading, or in the event of a charging system fault.