2015 Chevrolet Suburban
Key Replacement - Save vs Dealer in San Diego

2015 Chevrolet Suburban Smart Key Replacement - Fast, Affordable & Professional

I got a call from a resident in The Bridges in Rancho Santa Fe on a Tuesday morning. She had two fobs for her 2015 Suburban and both were giving her a key-not-detected warning on the dash. Not one fob. Both. That's the detail that changes the diagnosis.

When both fobs fail at the same time, it's almost never the fobs. I told her that on the phone and she sounded relieved, then immediately suspicious, the way people get when the answer sounds too convenient.

I pulled up to the property, popped both fobs open right there, and the CR2032 in each one was sitting fine and reading voltage. The issue was on the vehicle side. The antenna module that picks up the fob signal had gone quiet. Both fobs were transmitting. The truck just wasn't listening.

That's a different job than a key replacement, and I told her so clearly. I ran a scan, confirmed the antenna loop had dropped out, and walked her through what the repair path looked like. It wasn't a key job for me that day. I referred her to a shop I trust for the module side and made sure she could still use the emergency blade to get in and start the vehicle manually in the meantime.

She called back three weeks later for a spare key once the truck was sorted. I had her set up in The Bridges in under twenty minutes. The spare she should have had all along.

The dealer, for context, had originally quoted her a full key replacement as the first step without checking the antenna. She would have spent money on keys that didn't fix anything.

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