3-1. Key information- Page 87

87

3-1. Key information

3

Be

fore
 dri
ving

●

As the electronic key always receives 

radio waves, the battery will become 

depleted even if the electronic key is not 

used. The following symptoms indicate 

that the electronic key battery may be 

depleted. Replace the battery when nec-

essary.

• The smart access system with push-but-

ton start or the wireless remote control 

does not operate.

• The detection area becomes smaller.

• The LED indicator on the key surface 

does not turn on.

●

To avoid serious deterioration, do not 

leave the electronic key within 3 ft. (1 m) 

of the following electrical appliances that 

produce a magnetic field:

• TVs

• Personal computers

• Cellular phones, cordless phones and 

battery chargers

• Recharging cellular phones or cordless 

phones

• Table lamps

• Induction cookers

■

Replacing the battery



P.308

■

Confirmation of the number of regis-

tered keys

The number of keys already registered to 

the vehicle can be confirmed. Ask your 

Lexus dealer for details.

NOTICE

■

To prevent key damage

●

Do not drop the keys, subject them to 

strong shocks or bend them.

●

Do not expose the keys to high tem-

peratures for long periods of time.

●

Do not get the keys wet or wash them 

in an ultrasonic washer etc.

●

Do not attach metallic or magnetic 

materials to the keys or place the keys 

close to such materials.

●

Do not disassemble the keys.

●

Do not attach a sticker or anything else 

to the surface of the electronic key.

●

Do not place the keys near objects that 

produce magnetic fields, such as TVs, 

audio systems and induction cookers, 

or medical electrical equipment, such 

as low-frequency therapy equipment.

■

Carrying the electronic key on your 

person

Carry the electronic key 3.9 in. (10 cm) 

or more away from electric appliances 

that are turned on. Radio waves emitted 

from electric appliances within 3.9 in. (10 

cm) of the electronic key may interfere 

with the key, causing the key to not func-

tion properly.

■

In case of a smart access system with 

push-button start malfunction or 

other key-related problems



P.351

■

When an electronic key is lost



P.350

■

Handling the card key

●

Do not apply excess force when insert-

ing the mechanical key into the card 

key. Doing so may damage the card 

key.

●

If the battery or card key terminals get 

wet, the battery may corrode.

If the key is dropped into water, or if 

drinking water etc. is spilled on the key, 

immediately remove the battery cover 

and wipe the battery and terminals. (To 

remove the battery cover, lightly grasp 

and pull it.) If the battery is corroded, 

have your Lexus dealer replace the 

battery.

●

Do not crush the battery cover or use 

a screwdriver to remove the battery 

cover.

Forcibly removing the battery cover 

may bend or damage the key.

●

If the battery cover is frequently 

removed, the battery cover may 

become loose.