Ford Add a Key With Two Working Keys
Updated 2026 458 vehicles 1996–2020
This procedure covers 458 Ford, Lincoln, Mazda and Mercury vehicles from 1996 to 2020. Check that yours is listed below, then follow the steps.
Need the fob itself?
Pick your vehicle to see replacement fobs on Amazon. Match the FCC ID on your old fob before you buy.
Not sure which fob is yours? Find your year below for the exact FCC ID and part number.
You can add a new key to this Ford yourself if you already have two keys that start the engine. The new key must be cut first, and it has to be a genuine key — a cloned hardware-store key won't work.
Before you start
- Two original keys that already start the engine
- Your new key, already cut
- 1Insert one working key into the ignition. Turn it to ON (just shy of starting, engine not cranking) for at least one second, then back to OFF.
- 2Remove that key. Within 10 seconds, insert the second working key, turn to ON for at least one second (no more than ten), then back to OFF and remove it.
- 3Within 20 seconds, insert the new key and turn it to ON. Leave it on for at least one second, then turn back to OFF.
- 4The security light comes on for three seconds — that confirms the new key is programmed.
Tips & troubleshooting
- No two working keys? The key can't be programmed at a hardware store (Ace, Lowe's, Walmart, Home Depot). You'll need an automotive locksmith or dealer.
Which fob does your vehicle take?
These steps program a fob to your car — they can't tell you which fob to buy, and one that isn't the right part for your vehicle will not pair no matter how carefully you follow them. Find your vehicle below: tap your year for the exact fob it takes — FCC ID, OE part number and battery — or "Shop fobs" to browse replacements for that model.
Vehicles this procedure covers
These steps apply to the 458 vehicles below — 63 models across 4 makes. Tap a year for that exact vehicle's fob details — FCC ID, part number and battery — or "Shop fobs" to browse replacements for that model on Amazon.
We may earn a commission on qualifying purchases made through links on this page, at no extra cost to you. It never affects which product we recommend. Learn more.
Rather pay someone to do it?
What a locksmith or dealer charges to program a fob, and what a lost key costs to replace outright: