Chevrolet Repair: GM ANTITHEFT SYSTEM, chevy impala, car wont start

Question
I have a 2001 chevy impala 3.4 l vin e with the security light flashing and the car wont start where should i start.

Answer
Hi Todd, The most common part to replace for this problem is the ignition cylinder assembly. But if you have a remote starter installed, I would start with that system as they do cause this problem. Try this to relearn the system.......

Turn ON the ignition, with the engine OFF.
Attempt to start the engine, then release the key to ON (vehicle will not start).
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes (the vehicle is now ready to relearn the Passlock™ Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK).

Important
The vehicle learns the Passlock™ Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.


Start the engine (the vehicle has now learned the Passlock™ Sensor Data Code and/or password).

Hope this helps you

Have a Great Holiday         Mark