How do I relearn VATs?
GM VATs Relearn
- Insert a master key (black head) into the ignition switch.
- Turn key to the “ON” position without starting the engine.
- Wait for 10 minutes or until the security light turns off.
- Turn key to the “OFF” position for 5 seconds.
- Turn key to the “ON” position without starting the engine.
How long does it take to relearn the ignition switch?
When performing this relearn, all previously learned keys will be erased. Additional keys may be relearned immediately after the first key has been learned by inserting the additional key and turning the ignition switch to on within 10 seconds of removing the previously learned key. Turn key to the “ON” position without starting the engine.
When do you need to replace the ignition switch?
If not, the ignition lock cylinder housing and passlock sensor will need to be replaced. The wiring should also be checked before replacing the ignition switch. In extreme cases, the BCM may even need to be replaced. If your trying to diagnose this issue but having some difficulties and would like some help, click here to chat with a GM Expert.
How does the vehicle anti-theft system ( vats ) work?
Vehicle Anti-Theft System (VATS) – VATS has a separate module called the Theft Deterrent Module (TDM) that validates the resistive chip in the ignition key. If the resistance value read by the TDM is what the TDM is expecting, the TDM will send a signal to the PCM informing the PCM that a valid key is present and the PCM may start the vehicle.
How do you turn on ignition with engine off?
Turn ON the ignition, with the engine OFF. Attempt to start the engine, then release the key to ON, the vehicle will not start. Observe the SECURITY light. After approximately 10 minutes, the security light will turn OFF.
When performing this relearn, all previously learned keys will be erased. Additional keys may be relearned immediately after the first key has been learned by inserting the additional key and turning the ignition switch to on within 10 seconds of removing the previously learned key. Turn key to the “ON” position without starting the engine.
Vehicle Anti-Theft System (VATS) – VATS has a separate module called the Theft Deterrent Module (TDM) that validates the resistive chip in the ignition key. If the resistance value read by the TDM is what the TDM is expecting, the TDM will send a signal to the PCM informing the PCM that a valid key is present and the PCM may start the vehicle.
If not, the ignition lock cylinder housing and passlock sensor will need to be replaced. The wiring should also be checked before replacing the ignition switch. In extreme cases, the BCM may even need to be replaced. If your trying to diagnose this issue but having some difficulties and would like some help, click here to chat with a GM Expert.
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.