GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Headlight System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Turn the headlamp switch to the HEAD position.
  2. Turn the headlamp dimmer switch to the LOW position.

Only the low beam headlamps are ON.

2

Turn the headlamp dimmer switch to the HIGH position.
  1. The high beam headlamps are ON.
  2. The high beam indicator is lit.
  3. The low beam headlamps are OFF.

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