my security light is on and my car wont start

2004 CHEVROLET IMPALA
150 MILES • 6 CYL • AWD • AUTOMATIC
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HELPMELVIN
  • MEMBER
  • 1 POST
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
Aug 7, 2011 at 1:38 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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WRENCHTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 20,761 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.
Mar 17, 2021 at 5:18 PM
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