How do you reset the security system on a 1999 Chevy Silverado?
How Do I Reset Anti-theft System: Chevy Silverado?
- Insert ignition key.
- Turn it to the on position.
- Attempt to start the engine.
- Leave the key in that position until the security light stops flashing.
- Once the light goes off, switch the ignition key to off.
- Wait about five seconds.
- Try to start the engine again.
What is GMC passlock?
The PassLock system was designed to prevent vehicle theft by disabling fuel to the engine if attempts are made to start the vehicle without the correct bitted key.
What does GM passlock disable?
Passlock disables the fuel injectors if the PCM does not receive a valid password from the BCM for 10 minutes. The BCM, PCM, and ignition lock cylinder case contain codes.
How do I get my GMC out of security mode?
Step 1: Insert the key into the door lock. Use the side door on the driver’s side and the physical key even if there is a keyless entry system on the car. Step 2: Turn the vehicle key to unlock the car door without releasing it. Hold the key for 30 seconds in the position.
How do I get my truck out of theft mode?
Look for a button that allows you to slide the physical key out of the fob. Step 2: Turn the vehicle key to unlock the car door without releasing it. Hold the key for 30 seconds in this position. This will signal to your car’s system that you have the right key, and will enable you to bypass your car’s alarm system.
What is the difference between the General Motors Passkey and PassLock?
Unlike the General Motors PASSKey I/II, VATS, PASSKey III, or keyless, the security of the PassLock system is built into the lock and is not dependent on a specialized key or separate device. NOTE: For the purpose of this article, the terms PassLock, Magnetic Resonance Device (MRD) and Vehicle Theft Deterrent (VTD) are interchangeable.
What does a PassLock module do?
PASSLOCK MODULES HAVE MANY NAMES INCLUDING ANTI-THEFT MODULE, VATS MODULE, AND PASSLOCK, BUT THEY ALL REFER TO THE SAME PART. THIS COMPONENT’S JOB IS TO TELL THE ELECTRONIC ENGINE CONTROL MODULE (ECM) THAT THE CORRECT KEY IS BEING USED TO START THE VEHICLE.
How do I know if my car is PassLock equipped?
Most PASSLock-equipped vehicles have a telltale indicator in the instrument panel. When a PASSLock-equipped vehicle is being started, the instrument panel warning light for PASSLock remains on until the engine starts. For this reason a “No Start” condition should not be confused with PASSLock System fault.
What kind of lock does General Motors use?
PASSLock was developed for the General Motors 10-cut lock mechanism. There are three basic styles of PassLock ignition locks: Modular, Modular in-dash, and CSS. When purchasing a replacement ignition lock, make sure the part number is correct for the year, make, and model.