key fob not working how do I make it work

Asked by Danielle Jul 21, 2024 at 05:17 PM about the 2015 Cadillac SRX Luxury AWD

Question type: Maintenance & Repair

when I tried to start my car my car lid up and stayed
in my key fob was low so I changed out the battery it
still didn't start so I changed out the battery to the car
still won't start now it record says it does not
recognize and I still won't start

1 Answer

310,935

You messed up when you disconnected main power from the vehicle. There is a possibility that the security system went full active mode and those instructions are in the owners manual on how to reset the system. However, there is a much higher chance that you lost the programming in the BCM, and if that is the case then you're stuck with the dealer to reprogram it to match the vehicles VIN and that accessories brought back online internally. Note never disconnect main power without using a memory saver tool. Most parts stores have them.

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