2010 Acura RL
Key Replacement - Save vs Dealer in San Diego

2010 Acura RL Transponder Key Replacement - Fast, Affordable & Professional

I was up in Crest, the quiet hill community east of El Cajon, working on a 2010 Acura RL parked in a residential driveway. The owner had one key left, and it had been chewed up enough by a worn ignition cylinder that it was starting to miss on some tries. He wanted a spare before that window closed completely.

The RL is one of those cars where the key looks simple but the job has layers. I decoded the lock first, then cut a replacement key blade to match. Clean cuts matter here because a sloppy cut on a transponder key still won't start the car, and you waste time chasing a programming problem that is actually a mechanical one.

Then I connected my diagnostic tool to the OBD port and ran the key registration sequence. The immobilizer on these has a timed security countdown built in, and you just have to let it run. No skipping it. While it counted down, the owner and I stood there in the driveway and he mentioned he had already called the dealer. They wanted him to tow the car in, leave it overnight, and wait on parts availability. He lives on a hill. A flatbed on that street would have been an event.

When the sequence finished, I tested the new key three clean starts in a row. Then I tested the original worn key to confirm it still worked too. He now had a backup before the first one failed completely.

That is the part of the job I care about. Not just programming a chip and leaving. Confirming both keys work, back to back, before I pack up.

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