Subaru Impreza Manuals 2023 Impreza Owner's Manual | Página 449

Maintenance and service / Replacing key battery 11-49
2 . Remove the transmitter case from the key head .
1 ) Negative ( − ) side facing up
4 . Replace the old battery with a new battery making sure to install the new battery with the negative ( − ) side facing up .
5 . Put together the transmitter case by fitting the hooks on the case .
6 . Reinstall the transmitter case in the key head .
7 . Refit the removed half of the key head .
3 . Open the transmitter case by releasing the hooks .