Lexus GS 450h 2008 Owner's Manual page 457

If the electronic key battery is discharged
■
The following symptoms may occur.
The smart access system with push-button start and wireless remote control will
●
not function properly.
The operational range is reduced.
●
Use a CR1632 lithium battery
■
Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.
●
Replace only with the same or equivalent type recommended by your Lexus
●
dealer.
Dispose of used batteries according to the local laws.
●
CAUTION
Removed battery and other parts
■
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
For normal operation after replacing the battery
■
Observe the following precautions to prevent accidents.
Always work with dry hands.
●
Moisture may cause the battery to rust.
Do not touch or move any other components inside the electronic key.
●
Do not bend the battery terminals.
●
4-3. Do-it-yourself maintenance
4
455