2002 Lexus ES300 battery replacement

KEYS AND DOORS
13
WIRELESS REMOTE CONTROL
1Locking the doors and sounding an alarm
2Indicator light
3Unlocking the trunk lid
4Unlocking the doors
When you operate any button on the key, push it slowly and
surely. At this time, the indicator light on the key grip flashes
once.
The operational range of the wireless remote control is
approximately 1 meter (3 ft.). The effective range may vary
with different conditions. To activate the wireless remote
control without fail, do it approximately 1 meter (3 ft.) from your
Lexus. In the following cases, th
e battery in the key may be
discharged. If this is a case, replace it using a special
screwdriver.
 The remote control does not work.
 The operational range of wireless remote control becomes
extremely short.
 The indicator light on the key is dimmed or does not come
on.
For the replacement of the battery, see “Replacing the battery”
on page 18. You can also have the battery of the key replaced
by your Lexus dealer.
If you lose the wireless key, contact your Lexus dealer as soon
as possible to avoid the possibility of theft, or an accident. (See
“If you lose your keys or lock yourself out” on page 277.)
You can use up to 4 wireless remote control keys for the same
vehicle. Contact your Lexus dealer for detailed information.
The wireless remote control key is an electronic
component. Observe the following instructions in order
not to cause damage to the key.
 Do not leave the wireless remote control key on places
where the temperature becomes high such as on the
dashboard.
 Do not disassemble it.
 Avoid knocking it hard against other objects or dropping it.
 Avoid putting it in water.

EXTERIOR EQUIPMENT
87
CAUTION
Make sure the cap is tightened securely to prevent
fuel spillage in case of an accident.
 Use only a genuine Lexus fuel tank cap for
replacement. It is designed to regulate fuel tank
pressure.
NOTICE
Do not attempt to tighten the cap further, as the cap
could be damaged or become difficult to open.
In case the opener is not actuated
Remove the cover and pull up the manual lever in the
trunk.
This is used in case the fuel filler door cannot be opened due
to a discharged battery or other trouble.

INTRODUCTION
292
Checking brake fluid
Parts (if level is low):
FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:
 Funnel (only for adding fluid)
Checking power steering fluid
Parts (if level is low):
Automatic transmission fluid DEXRON
II or III
Tools:
 Rag or paper towel
 Funnel (only for adding fluid)
Checking battery condition
Tools:
Warm water
 Baking soda
 Grease
 Conventional wrench (for terminal clamp bolts)
Checking and replacing the blade type fuses
Parts (if replacement is necessary):
Fuse with same amperage rating as original
Checking the cartridge type fuses
Parts (if replacement is necessary):
Genuine Lexus fuse or equivalent with same amperage
rating as original
Adding washer fluid
Parts:
Water
 Washer fluid containing antifreeze (for winter use)
Tools:
 Funnel

ELECTRICAL COMPONENTS
335
CHECKING THE CARTRIDGE TYPEFUSES
Engine compartment
Driver’s side instrument panel If the headlights or other electrical components do not
work and the blade type fuses are O.K., check the
cartridge
type fuses. If any of the cartridge type fuses are
blown, they must be replaced.
If there is an overload in the circuits from the battery, the fuses
are designed to blow before the entire wiring harness is
damaged.
CAUTION
Always use a genuine Lexus fuse or equivalent for
replacement. Never install an ordinary wire even for
a temporary fix. This may cause extensive damage and
possibly a fire.
NOTICE
Before replacing the fuses, have the cause of electrical
overload determined and repaired by your Lexus dealer.