Mitsubishi Montero Sport Key Fob Programming

Updated 2026 2000–2001 2 model years

The Mitsubishi Montero Sport key fob has to be programmed by an automotive locksmith or dealer — there is no at-home procedure. Below is the exact replacement fob you need for each model year (FCC ID and part number), the battery it takes, and what programming costs.

Shop Mitsubishi Montero Sport key fobs on Amazon Match the FCC ID for your year (table below) before you buy.

Every Mitsubishi Montero Sport model year

Key fob programming method, fob type and battery for each Mitsubishi Montero Sport model year
Year	Programming	Key fob	Battery
2001	Locksmith or dealer Locksmith or dealer	Remote, Transponder Key · 2/3-button	CR2032 battery on Amazon
2000	Locksmith or dealer Locksmith or dealer	Remote, Transponder Key · 2/3-button	CR2032 battery on Amazon

2000–2001 Mitsubishi Montero Sport

Remote / key fob programming

This remote can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new remote, so a replacement has to be set up by an automotive locksmith or a dealer.

Order the correct replacement remote below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.

Key programming

This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.

Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.

Replacement key fobs

Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.

Remote

A separate key fob that only handles locking and unlocking.

2/3-button Remote

Find on Amazon

FCC ID: E4EG8D-522M-A
OE part #: MR587977, MR587978
Frequency: 315 MHz

Transponder Key

3 versions

A cut metal key with a chip in the head. No buttons.

Transponder Key

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Key blank: AF01158083
OE part #: X176

Transponder Key

Find on Amazon

Key blank: MIT-16
OE part #: MIT-12, MIT1, X176

Transponder Key

Find on Amazon

Key blank: MIT-12
OE part #: MIT12

Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.

Mitsubishi Montero Sport key fob battery

Your Mitsubishi Montero Sport key fob uses a CR2032 3V lithium coin cell. A fresh one typically lasts 3–5 years.

Buy Energizer CR2032 Lithium Coin Batteries (4-pack) on Amazon

How to replace the battery

1 Find the seam or small slot on the edge of the remote.
2 Twist a coin or small flathead in the slot to split the case open.
3 Remove the old coin cell and note the + side.
4 Fit the new battery with the + side matching, then close the case.
5 Press a button to confirm the LED lights, then test at the car.

Battery tips

Use a fresh, name-brand 3V lithium cell — bargain cells drain quickly.
Try not to touch both faces of the new battery; skin oils shorten its life.
If the remote still doesn't work after a new battery, it may need re-syncing or programming.

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Rather hire a pro?

See what it actually costs, broken out by dealer, locksmith, and DIY:

Key fob programming cost Car key replacement cost