GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 LeSabre 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Content Theft Deterrent (CTD) System Check

Step

Action

Normal Result(s)

Abnormal Results(s)*

1
  1. Close all doors.
  2. Lock the left (or right) front door.
  3. Operate the left (or right) front door handle.

The interior lights illuminate.

The interior lights do not illuminate. Refer to Interior Lamps System Check in Lighting Systems.

2

Press the transmitter (keyfob) UNLOCK button.

The left (or right) front door unlocks.

The left (or right) front door does not unlock. Refer to Remote Keyless Entry System Check in keyless Entry.

3
  1. Close all doors.
  2. Turn the ignition switch to RUN.
  3. Turn the ignition switch to OFF.
  4. Open left (or right) front door.

The SECURITY indicator flashes.

Content Theft Deterrent (CTD) Alarm Mode Always On

4

Press the left (or right) front power door lock switch.

The SECURITY indicator illuminates.

Content Theft Deterrent (CTD) Alarm Mode Inoperative

5

Close the left (or right) front door. Stay in the vehicle.
    • The SECURITY indicator illuminates for 30 seconds.
    •  The CTD system arms.

Content Theft Deterrent (CTD) Alarm Mode Inoperative

6
  1. After one minute, use the mechanical lock/unlock lever in order to unlock the left (or right) front door.
  2. Open the left (or right) front door.

The horns and exterior lights cycle on and off. The lights cycle approximately once per second for three to seven minutes. The CTD system is in alarm mode.

7

Within three minutes after the CTD system enters the alarm mode, use the key in order to lock/unlock the left (or right) front door.

The horns and exterior lights stop cycling on and off. The CTD system disarmed.

Content Theft Deterrent (CTD) Alarm Mode Always On

8
  1. Rearm the CTD system.
  2. Press the remote keyless entry transmitter unlock button.
  3. Open Door

The CTD system is disarmed.

Content Theft Deterrent (CTD) Alarm Mode Always On

9
  1. While you are in the vehicle, use the mechanical door lever in order to lock each door.
  2. Close all doors.
    • The SECURITY indicator turns off when the last door is closed.
    • The CTD system does not enter the armed mode.

Content Theft Deterrent (CTD) Alarm Mode Always On

10
  1. Use the mechanical door lock lever or outside key lock in order to unlock the left front door.
  2. Open the door.

The CTD system does not enter the alarm mode.

Content Theft Deterrent (CTD) Alarm Mode Always On

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