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Mercury Key Fob Programming

Mercury uses Ford's procedures, so 62 of the 63 Mercury model years we cover can be programmed at home. Adding a key takes two keys that already start the engine. The remote relearn resets every remote on the car, so you program them all together. That covers everything from the Grand Marquis and Sable to the Mariner and Milan. Nearly every Mercury fob takes a CR2032, and a few older years take a CR2016.

Choose your Mercury model for programming steps, the battery it uses, and the correct replacement fob with FCC ID and part number — 63 model years across 11 models.

A brass dot marks models with verified replacement-fob data (FCC ID + part number).

Can you program a Mercury key fob yourself?

On 62 of the 63 model years we cover (98%). The rest need a locksmith or dealer. Mercury uses 2 different onboard procedures:

What battery does a Mercury key fob take?

Mostly the CR2032, which covers 57 of 63 model years. Mercury also uses the CR2016, so check your model and year before you buy.

Key fob battery by Mercury model and year
Battery Model years Models
CR2032 battery on Amazon 57 Cougar (1999–2002); Grand Marquis (2006–2011); Marauder (2003–2004); Mariner (2005–2011); Milan (2006–2011); Montego (2005–2007); Monterey (2004–2007); Mountaineer (1998–2010); Sable (1999–2009); Tracer (1999)
CR2016 battery on Amazon 6 Mountaineer (1997); Mystique (1996–2000)

Mercury key types

The replacement keys we've matched to Mercury models fall into 3 types. A model year can take more than one, which is why the model pages list each option with its FCC ID.

Remote 1996–2011
A separate key fob that only handles locking and unlocking.
Transponder Key 1996–2011
A cut metal key with a chip in the head. No buttons.
Remote Head Key 2001–2011
One piece: a cut metal blade with the lock/unlock buttons built into the head.

What Mercury key programming costs

US price ranges for the key types above, with a working key on hand. Losing every key costs more, $200–$500 at a locksmith for a basic fob or transponder key.

Mercury key programming cost, locksmith vs dealer
Key Locksmith Dealer
Basic remote, working key on hand $50–$150 $100–$250
Transponder or remote-head key $75–$200 $150–$350

Full breakdown and sources: key fob programming cost .

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