2013 Buick Enclave
Key Replacement - Save vs Dealer in San Diego

2013 Buick Enclave Transponder Key Replacement - Fast, Affordable & Professional

I was parked off Bancroft on a Saturday morning when the call came in. Guy had been sitting in his 2013 Enclave for twenty minutes trying to figure out why the engine would crank but not hold. The key turned fine. The starter was doing its job. But the car would fire up and die almost immediately every single time.

He had already tried the obvious stuff. Called a parts store. Googled for an hour. Someone on a forum told him the fuel pump was probably gone.

I got there and the first thing I did was check the dash for any security-related message. There it was. The vehicle security system had flagged a mismatch. The transponder in the key he had was not enrolled to this car, and the immobilizer was cutting fuel after ignition just like it is supposed to do when it sees an unrecognized key.

Decoded the lock, cut a replacement blade to match the vehicle. Connected to the OBD port, accessed the security module through the correct GM protocol, and enrolled the new transponder. Waited through the required security timer. The whole sequence takes patience more than anything.

Three clean starts. I walked away between each one to confirm the system was reading the key properly at distance from the seat, not just because I was hovering over the port.

He mentioned the dealer had quoted him a wait of several days and a number that made him wince. We handled it in his own driveway instead.

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