How do you reset the anti-theft system on a 2004 GMC Envoy?
Turn the key on, with the engine OFF. Try to start the engine, then release the key to ON, Engine will not start. Watch the security telltale, after about 10 mins, it will turn OFF. Turn OFF the ignition, and wait 5 seconds.
Why is my GM anti theft not working?
When the anti-theft system light stays on, the fuel pump won’t pump and injectors don’t activate to prevent theft. 2. Sometimes the GM (General Motor) Passlock system cars have a part around the ignition tumbler that goes bad and no longer detects the valid key, due to “the battery in the key is dead and the chip is not connecting to your computer”
What are the different types of GM anti theft systems?
GM made several different types of anti-theft systems. VATS, PassKey, and PassLock. The troubleshoot and reset procedures are different for each. PassLock seems to have the highest failure rate. So if you have a key WITHOUT a chip in it, chances are it’s a PassLock system.
How does a GM theft deterrent system work?
An exciter coil located inside the ignition lock cylinder induces power into the transponder when the ignition switch is turned on. The transponder emits a unique signature signal that’s received by the Theft Deterrent Module (TDM).
How does an anti theft system work on a car?
This system uses a coded lock cylinder. That’s right, the coding is built into the lock so if a thief pulls the lock cylinder they’ll never be able to start the vehicle. When you insert the proper key and turn the cylinder, a magnet on the cylinder induces a magnetic field onto a sensor.
How does an anti theft system work on a GM car?
When you insert the proper key and turn the cylinder, a magnet on the cylinder induces a magnetic field onto a sensor. The sensor signal is read by either the instrument panel cluster (IPC) or the body control module (BCM) depending on the vintage of the vehicle.
Is there a theft deterrent on my GMC?
General Motors is an automobile manufacturer that owns Chevrolet, Buick, GMC and Cadillac. Current automobiles use a theft-deterrent alarm system to prevent break-ins. The horn will sound while the headlights flash on and off. This will continue for several minutes unless you deactivate the alarm.
How to bypass vats, Passkey and PassLock security systems in GM?
It can be VATS, Passkey or Passlock anti theft system that is going bad causing your issue. I am going to share a secrete with you on how you can bypass these systems with very little effort. This is a really unique security system bypass kit that you can use to override your current factory theft system on your GM vehicle.
How can I Reset my GM theft deterrent alarm?
If anything else is open, the alarm will not be reset. Close the door and wait for the security light to stop flashing from inside the car. Another option is to close the doors first, and then press the “Lock” button on the keyless remote. This will also pre-arm the theft-deterrent alarm system.