2016 Toyota 4runner
Key Replacement - Save vs Dealer in San Diego

2016 Toyota 4runner Remote Head Key Replacement - Fast, Affordable & Professional

All-keys-lost on a push-to-start Toyota is the call that gets people the most rattled, and I get why. No blade going into a cylinder, no mechanical fallback. If the vehicle doesn't wirelessly recognize a registered fob, it just sits there.

This one came from South Oceanside. The owner had been camping up outside town, deep enough that cell service was gone at the site. He had one fob for his 2016 4Runner and it disappeared somewhere between breaking camp and packing the truck. He walked to the camp host's phone and called me from there.

I drove out to him. All-keys-lost on this generation Toyota is a tool-dependent job. The immobilizer stores encrypted key data, and before new fobs can be registered, that data has to be read and reset properly. I pulled the immobilizer data as a precaution, then ran the all-keys-lost sequence through the OBD port. The remote head key, blade and fob as one unit, got paired and cut on site.

He watched the whole thing from a camp chair. When I told him to try it, he turned the key like he half expected nothing to happen. The engine came up clean.

He mentioned what the dealer had quoted him for a prior spare that he never got around to ordering. That number was the reason he'd been running on one key for two years. The job I did at the campsite cost him a fraction of that quote, with no tow and no waiting.

Get the spare made while you still have a working key. That's the lesson every 4Runner owner learns eventually.

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