When the doors/windows/moon roof cannot be operated using an elec-
tronic key
If communication between the electronic key and vehicle is interrupted or the
electronic key cannot be used because the battery is depleted, the smart entry &
start system and wireless remote control cannot be used.
The smart entry & start system may have been disabled by a customize setting.
In this case, change the customize setting to enable the smart entry & start
system.
NOTICE
When taking the vehicle to any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer due to a malfunction of the smart entry & start system, make
sure to bring all registered electronic keys (including the card key).
The electronic key may have been set to battery saving mode.
battery saving mode has been set, cancel it.
The battery of the electronic key may be discharged.
● Replace the battery.
● Using the mechanical key.
The 12-volt battery may be discharged.
Restarting the hybrid system using the jumper (or booster) cables.
Replace the electronic key battery
Replace the battery with a new one if it is depleted.
The battery for the card key is available only at any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer. Your Lexus retailer or Lexus
authorized repairer, or any reliable repairer can replace the battery for you.
Prepare the following before replacing the battery:
● Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2032
9-5. If a door cannot be opened or locked
721
9
When trouble arises
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