GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the ON position
  2. Pull the parking brake lever.

BRAKE indicator illuminates.

Brake Warning Indicator Inoperative

2

Release the parking brake.

BRAKE indicator goes out.

Brake Warning Indicator Always On

3

Remove the brake fluid reservoir cap and manually hold the float down.

This causes the brake fluid level switch to close.

BRAKE indicator illuminates.

Brake Warning Indicator Inoperative

4

Release the float and replace the reservoir cap.

BRAKE indicator goes out.

Brake Warning Indicator Always On

5

Turn the ignition switch to the START position.

BRAKE indicator illuminates.

Brake Warning Indicator Inoperative

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