2016 Ford Mustang
Key Replacement - Save vs Dealer in Ventura County

2016 Ford Mustang Smart Key Replacement - Fast, Affordable & Professional

Out in Saticoy, I got a call from a guy whose 2016 Mustang had been sitting in his driveway for two days. He'd already swapped one CR2025 out of the fob, the car still wasn't reading it, and he figured the fob was toast.

I asked him to check the back label and confirm the factory FCC ID matched what I had on file for his VIN. It did. That told me the fob itself was probably fine.

When I got there, he handed me the key and I popped it open on the hood. Two battery slots, two batteries. He'd only replaced the one on top. The second cell was original, and it was reading close to dead on my meter. Swapped both, snapped the case back together clean, and walked the car. Door handles responding, push-button start solid, all five buttons doing their job.

He stood there for a second and said he didn't realize it took two.

Most people don't. The two-CR2025 setup isn't obvious if you're used to fobs that take a single cell. He saved himself a fob replacement he didn't need.

Before I left, he asked about adding a spare. Smart move on a push-button car. We did the add-a-key right there, programmed through the port, tested both fobs back to back. He was set.

The dealer quote he'd gotten the day before was sitting on his phone. What he paid me was a fraction of that, and I was in and out in under 40 minutes total.

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