GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition key to LOCK.
  2. Remove the ignition key.
  3. Exit the vehicle and close all doors.
  4. Press the transmitter LOCK button for approximately 1 second and release.
    • All doors lock.
    • The parking lamps and tail lamps flash once to confirm operation.

2

Press the transmitter UNLOCK button once for approximately 1 second and then release.

    • The left front door unlocks.
    • The parking lamps and tail lamps flash twice to confirm operation.
    • The dome light illuminates for approximately 15 seconds and then turns off.
    • The left front door locks after approximately 30 seconds.

3

Press the transmitter UNLOCK button twice within 5 seconds.

    • All of the doors unlock.
    • The parking lamps and tail lamps flash twice to confirm operation.
    • The dome light illuminates for approximately 15 seconds and then turns off.
    • All of the doors lock after approximately 30 seconds.

4

  1. Press the transmitter UNLOCK button twice within 5 seconds.
  2. Open and close any of the vehicle doors within approximately 30 seconds.
    • All of the doors unlock.
    • The parking lamps and tail lamps flash twice to confirm operation.
    • The dome light illuminates for approximately 15 seconds and then turns off.
    • All of the doors remain unlocked after approximately 30 seconds.

Door Unlock Inoperative with Transmitter - All

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