Thread: Help! Key Fob randomly stopped working and car won't start
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Old Jul 30, 2020 | 12:29 PM
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KDW4Him
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From: Alma, MI
Default Re: Help! Key Fob randomly stopped working and car won't start
Originally Posted by Heytherebeaux
And yes, I 1) changed the batteries 2) made sure they were in correctly 3)unplugged the battery for 60+ secs and then attempted to unlock and still no dice.
A Crossfire key FOB has 3 functions, first is a metal key to put into the ignition/door to turn the tumblers. Second is to prove to the car's alarming the correct FOB is turning the ignition with the metal part. Third is to remotely lock/unlock the car. This last function is the only function the batteries in the FOB are needed for. The first two is hardware. Did you perform the FOB re-sync procedure after the battery replacement?
 
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