Replace the Key Fob Battery

When the keyless remote on a second-generation Impreza (GD saloon / GG wagon, 2000–2007) loses range or its LED stops lighting, the coin cell inside has run down. It is a quick change — but note the GD/GG remote uses a CR1620 cell, which is smaller and thinner than the CR2032 many other cars use, so check you have the right one.

Replace the battery

1. Remove the screw on the remote and split the case open at the seam.
2. Lift out the old CR1620 cell.
3. Before touching the new battery, discharge any static electricity from yourself — touch a bare metal part of a building or the car. The transmitter’s circuit board is static-sensitive.
4. Fit the new CR1620 cell (or equivalent), observing the same orientation as the old one.
5. Reassemble the case in reverse order and refit the screw.

If the remote still doesn’t work

The GD/GG Impreza does not use a button-press re-sync after a battery change. If the remote does not operate the locks once the new cell is in, the transmitter code may need to be re-registered to the car through the registration connectors behind the driver’s sill trim — see our Impreza keyless-remote registration guide. Remember the car stores up to three remotes.

Frequently asked questions

What battery does the GD/GG Impreza remote use? A CR1620 coin cell — not the more common CR2032. Fitting the wrong size is a frequent reason a “new” battery seems not to work.

Do I have to re-programme the remote after changing the battery? Usually not — the code lives in the car, not the remote. If it stops responding, re-register it through the registration connectors as above.

Why did you mention static electricity? The remote’s circuit board can be damaged by a static discharge; touching earthed metal first protects it while the case is open.

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