GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Alero Export 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Exterior Lights System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Turn the ignition switch OFF.
  2. Place the headlamp switch in OFF.

All of the exterior lamps are off.
    •  Stop Lamps Always On

2

Place the headlamp switch in PARK.

All of the park lamps light.

Park Lamps Inoperative

3
  1. Place the headlamp switch in OFF.
  2. Press the hazard button in order to activate the hazard flashers.
    • All front and rear turn signal lamps flash.
    • The left turn indicator flashes.
    • The right turn indicator flashes.

4
  1. Press the hazard button in order to turn the hazard flashers off.
  2. Press the brake pedal.

All stop lamps light while the brake pedal is pressed.
    •  Stop Lamps Inoperative

5
  1. Turn the ignition switch to ON.
  2. Place the turn signal switch in the left turn position.
  3. Place the turn signal switch in the right turn position.
    • The respective front turn signal lamps flash 80-90 times per minute.
    • The respective rear turn signal lamps flash 80-90 times per minute.
    • The respective turn indicator flashes.
    • The respective cornering lamp lights (if applicable).

6
  1. Turn the ignition switch to ON.
  2. Place the headlamp switch in the HEAD position.
  3. Place the fog lamp switch in the ON position.

The fog lamps light.

Fog Lamps Inoperative - All

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.