Having problems with your 2003 Chevrolet Impala ?
2003 impala when doors locked with key fob lights blink and horn toots continuously until ignition is turned to run. set the fob horn setting to mode 2 and horn should chirp once and the lights should flash once. When locked with the fob, the horn and lights sound and and the toots repeatedly.
Repair Help & Product Troubleshooting for 2003 Chevrolet Impala
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