Lexus ES 250 Owner's Manual page 463

462
7-2. Steps to take in an emergency
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
When the battery is removed or dis-
■
charged
● Information stored in the ECU is cleared.
When the battery is depleted, have the
vehicle inspected at your Lexus dealer.
● Some systems may require initialization.
(P.495)
When removing the battery terminals
■
When the battery terminals are removed,
the information stored in the ECU is
cleared. Before removing the battery termi-
nals, contact your Lexus dealer.
Charging the battery
■
The electricity stored in the battery will dis-
charge gradually even when the vehicle is
not in use, due to natural discharge and the
draining effects of certain electrical appli-
ances. If the vehicle is left for a long time,
the battery may discharge, and the engine
may be unable to start. (The battery
recharges automatically during driving.)
When recharging or replacing the bat-
■
tery
In some cases, it may not be possible to
●
unlock the doors using the smart entry &
start system when the battery is dis-
charged. Use the wireless remote control
or the mechanical key to lock or unlock
the doors.
● The engine may not start on the first
attempt after the battery has recharged
but will start normally after the second
attempt. This is not a malfunction.
The engine switch mode is memorized by
●
the vehicle. When the battery is recon-
nected, the system will return to the
mode it was in before the battery was dis-
charged. Before disconnecting the bat-
tery, turn the engine switch off.
If you are unsure what mode the engine
switch was in before the battery dis-
charged, be especially careful when
reconnecting the battery.
● Vehicles with Stop & Start system: For a
while after the battery terminals have
been disconnected and reconnected, for
a while after the battery has been
replaced, the Stop & Start system may
not automatically stop the engine for
approximately 5 to 60 minutes.
When replacing the battery
■
Use a battery that conforms to European
●
regulations.
● Vehicles with Stop & Start system: Use a
genuine battery specifically designed for
use with the Stop & Start system or a bat-
tery with equivalent specifications to a
genuine battery.
Use a battery that the case size is same as
the previous one (LN3), 20 hour rate
capacity (20HR) is equivalent (65Ah) or
greater, and performance rating (CCA)
is equivalent (603A) or greater.
If an unsupported battery is used, Stop &
Start system functions may be restricted
to protect the battery. Also, battery per-
formance may decrease and the engine
may not be able to restart.
Vehicles without Stop & Start system:
●
Use a battery that the case size is same as
the previous one (LN3), 20 hour rate
capacity (20HR) is equivalent (70Ah) or
greater, and performance rating (CCA)
is equivalent (592A) or greater.
● If the sizes differ, the battery cannot be
properly secured.
● If the 20 hour rate capacity is low, even if
the time period where the vehicle is not
used is a short time, the battery may dis-
charge and engine may not be able to
start.
For details, consult your Lexus dealer.
WARNING
When removing the battery terminals
■
Always remove the negative (-) terminal
first. If the positive (+) terminal contacts
any metal in the surrounding area when
the positive (+) terminal is removed, a
spark may occur, leading to a fire in addi-
tion to electrical shocks and death or
serious injury.