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7-3. Do-it-yourself maintenance
IS250_EE(OM53B11E)
Remove the depleted battery.
Insert a new battery with the “+” ter-
minal facing up.
Use a CR2032 lithium battery
Batteries can be purchased at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
Replace only with the same or equivalent type recommended by the manufac-
turer.
Dispose of used batteries according to local laws.
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer
can replace the battery for you.
If the electronic key battery is depleted
The following symptoms may occur:
The smart entry & start system and wireless remote control will not function
properly.
The operational range will be reduced.
Certification for the key battery
Replace only with the same or equivalent type recommended by the manufac-
turer.
Dispose of used batteries according to local laws.
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