Remote keyless entry fob — battery replacement
1. The keyless entry system consists of a remote-control transmitter that sends a coded infrared signal to a receiver which then operates the door lock system. On models so equipped, the transmitter may also engage the alarm system and provide a panic button which flashes the lights and blows the horn for emergencies.
2. Replace the key battery when the smart key or wireless remote does not work properly. As the batteries deteriorate with age, the distance at which the remote transmitter operates will diminish.
Smart key models
3. Remove the mechanical key from the fob body.
4. Insert and twist a small screwdriver care- fully between the case halves and separate the two halves for battery replacement.
5. Replace the lithium battery with the same type as originally installed, observing the polarity diagram on the case.
6. Snap the case halves together.
Non-smart key models
7. Insert and twist a small screwdriver care- fully between the case halves and separate the two halves for battery replacement (see illustration).
7.7 Use a small screwdriver or coin to separate the transmitter halves …
8. Remove the module from the key.
9. Use a small coin to separate the module cover (see illustration).
7.9 … then carefully pry open the module cover
10. Replace the lithium battery with the same type as originally installed, observing the polarity diagram on the case (see illustration).
7.10 Remove the lithium battery, and install a new one with the positive (+) side of the battery facing up
11. Snap the cover on to the module and insert the module back into the key.
12. Snap the case halves together.