My security light is on and my car wont start

Tiny
HELPMELVIN
  • MEMBER
  • 2004 CHEVROLET IMPALA
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 150 MILES
Is a 2002 chevy impala ignition lock cylinder and ignition switch compatible with a2004 chevy impala my security light is on and my car wont start whatdo I do
Sunday, August 7th, 2011 AT 1:38 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Why, did you replace the lock?

If you did, then you have to perform a relearn for the system.

PASSLOCK 10 MINUTE RELEARN

AUTO LEARN
Time required, approximately 10 minutes:

1. Insure that the battery is fully charged.
2. Use the scan tool in order to clear the DTCs.
3. Turn the ignition switch from the OFF position to the CRANK position attempting to start the vehicle. The vehicle will start and then stall.
4. Leave the ignition switch in the ON position while observing the security indicator.
5. When the security indicator turns off, which can take up to 10 minutes, turn the ignition switch off. Wait 10 seconds.
6. The BCM and the PCM will learn the new code on the next start attempt.
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Wednesday, March 17th, 2021 AT 5:18 PM

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