Outils
- Plastic pry tool or documented mechanical key
- Clean dry cloth
Replace a key-fob battery
Renew the fob battery without damaging the case or losing the mechanical key.
5–15 min2 outilselectrical
Pièces et fournitures
- Exact battery chemistry and size printed in the manual or old cell
Avant de commencer
- A working spare key is available when practical
- Replacement battery polarity is understood
Une étape à la fois
Les vues réalistes montrent le composant et le geste de chaque étape. La disposition exacte varie selon le véhicule; confirmez toujours l’accès dans le manuel applicable.
ÉTAPE 1
Remove the mechanical key
Operate the documented latch and place the mechanical key safely aside.
Point de contrôleThe latch moves freely and no emergency key is lost.
ÉTAPE 2
Open at the service notch
Use the documented notch and a plastic tool to separate the case without twisting circuit components.
Point de contrôleCase clips release without cracking.
ÉTAPE 3
Match and install the cell
Record polarity, remove the old cell and install the exact replacement in the same orientation.
Point de contrôleThe cell is fully seated and contacts are not bent.
ÉTAPE 4
Close and test
Snap the case evenly, reinstall the key and test lock/unlock plus the documented backup start position.
Point de contrôleButtons work and the case seam is fully closed.
Vérification après réparation
- Remote functions work
- Vehicle recognizes the key
- Old coin cell is recycled safely