Lexus 2012 RX450h Owner's Manual page 749

12-volt battery cover (RX350)
NOTICE
When installing the 12-volt battery cover
■
Securely install the cover over the 12-volt battery. Failure to do so may cause water
to enter the engine compartment when it rains or the vehicle is washed, resulting in
a malfunction.
4-3. Do-it-yourself maintenance
Removing the 12-volt battery
cover.
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