GM Service Manual Online
For 1990-2009 cars only

Brake Warning System Check 98

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Park brake not applied.
  2. Start engine.

Brake warning indicators illuminate briefly (approximately 5 seconds).

Brake Warning Indicator Always On

Brake Warning Indicator, Message, and Chime Always On

2

Apply the park brake until the PARK indicator illuminates.

PARK indicator illuminates.

Brake Warning Indicator Inoperative

3

Shift vehicle into PARK.

Park brake is released and the PARK indicator is not illuminated.

Brake Warning Indicator Always On

4

Brake fluid level low.

BRAKE FLUID indicator illuminates, LOW BRAKE FLUID message displayed on DIC, and chime sounds.

Brake Warning Indicator, Message, and Chime Inoperative

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