GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Make sure the transaxle is in the PARK position.
  2. Turn the ignition switch to the START position and hold. Release when the engine starts.
    • The engine cranks and starts.
    • The SECURITY indicator lamp turns ON for approximately five seconds, then turns OFF.

If the SECURITY indicator lamp stays on or flashes after the engine starts, then refer to Diagnostic System Check - Theft Deterrent for further diagnosis and repair of the theft deterrent system.

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