7-2. Steps to take in an emergency
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Solid, stationary, unpainted metallic point away from the battery and any mov-
ing parts as shown in the illustration
Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the battery of your vehi-
cle.
Open and close any of the doors of
your vehicle with the engine switch
off.
Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to ON.
Once the vehicle’s engine has
started, remove the jumper cables
in the exact reverse order from
which they were connected.
Gasoline engine: To install the engine
cover, conduct the removal procedure in
reverse. After installing, check that the
fixed pins are inserted securely.
Once the engine starts, have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
Q Starting the engine when the battery is
discharged
The engine cannot be started by push-start-
ing.
Q To prevent battery discharge
O Turn off the headlights, the air condition-
ing system, the audio system, etc. while
the engine is off.
O Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
Q When the battery is removed or dis-
charged
O Information stored in the ECU is cleared.
When the battery is depleted, have the
vehicle inspected at your Lexus dealer.
O Some systems may require initialization.
(oP.654)
Q 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.
Q 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.)
Q Replacing the battery
O 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. If an unsupported bat-
tery is used, Stop & Start system functions
may be restricted to protect the battery.
Also, battery performance may decrease
and the engine may not be able to restart.
Contact your Lexus dealer for details.
O Use a battery that conforms to European
regulations.
Type A: Use a battery that the case size is
same as the previous one (LN4), 20 hours
rate capacity (20HR) is equivalent (80Ah)
B
C
D
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