Buick Rainier Key Fob Programming

Updated 2026 2004–2007 4 model years

Programming steps, the battery it takes, and the exact replacement fob for every Buick Rainier model year we cover (2004–2007). Find your year in the table, then jump to the details for that generation.

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

Every Buick Rainier model year

Key fob programming method, fob type and battery for each Buick Rainier model year
Year	Programming	Key fob	Battery
2007	GM Remote Programming by Holding the Unlock Switch GM Transponder Key Programming With a Working Key	Remote, Transponder Key · 3-button	CR2032 battery on Amazon
2006	GM Remote Programming by Holding the Unlock Switch GM Transponder Key Programming With a Working Key	Remote, Transponder Key · 3-button	CR2032 battery on Amazon
2005	GM Remote Programming by Holding the Unlock Switch GM Transponder Key Programming With a Working Key	Remote, Transponder Key · 3-button	CR2032 battery on Amazon
2004	GM Remote Programming by Holding the Unlock Switch GM Transponder Key Programming With a Working Key	Remote, Transponder Key · 3-button	CR2032 battery on Amazon

2004–2007 Buick Rainier

Remote / key fob programming

This GM vehicle uses a hold-the-Unlock-switch method to program remotes — reprogram every transmitter, including existing ones. A few models can't use it (see tip), and 2001–2005 Impala and Monte Carlo use the radio menu instead.

Full steps: GM Remote Programming by Holding the Unlock Switch

Key programming

On this GM vehicle you can program a new transponder key yourself using a key that already starts the engine. It takes under a minute per key.

Full steps: GM Transponder Key Programming With a Working Key

Takes about under a minute per key

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.

3-button Remote

Find on Amazon

FCC ID: MYT3X6898B
OE part #: 15008008, 15008009, 15008010, 15051014, 15051015
Frequency: 315 MHz

Transponder Key

5 versions

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

Transponder Key

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Key blank: B102P, B91P
OE part #: 23372321, 5928818, B102-P, B102P

Transponder Key

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Key blank: GM-39
OE part #: B102, P1113

Transponder Key

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Key blank: GM37
OE part #: P1106

Transponder Key

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Key blank: B102
OE part #: B102

Transponder Key

Find on Amazon

Key blank: GM-14
OE part #: JMA-B86

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.

Buick Rainier key fob battery

Your Buick Rainier 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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