2008 Lexus ES350 battery

382
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection
procedure
Once3 times
(Flashing)
Indicates that the
driver’s door has
been opened or
closed with the
shift lever in P, the
“ENGINE START
STOP” switch in
any mode other
than OFF and the
electronic key
outside of the
detection area.
Tu r n t h e
“ENGINE START
STOP” switch
OFF or confirm
the location of the
electronic key.
Con-
tinuousCon-
tinuous
(Displayed alternately)
(Flashing)
Indicates that the
driver’s door has
been opened or
closed with the
shift lever out of in
P, the “ENGINE
S TA R T S TO P ”
switch in any
mode other than
OFF and the elec-
tronic key outside
of the detection
area.
• Shift the shift lever to P.
• Confirm the
location of the
electronic key.
Once
(Flashing)
Indicates that the
key battery is low.Replace the bat-
t e r y. ( →P. 3 3 2 )

5
When trouble arises
383
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)*: If the engine does not start when the electronic key is inside the vehicle,
the electronic key battery may be de pleted or there may be difficulties
receiving the signal from the key. ( →P. 2 6 )
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure

Indicates that a
door has been
opened or closed
and the “ENGINE
START STOP”
switch has been
switched twice to
ACC ESSO RY
mode from OFF.
Press the
“ENGINE START
STO P ” s w i t c h
while applying the
brakes.

(Comes on for 15 seconds.)
(Flashing)
Indicates that the
steering lock has
not released.
Press the
“ENGINE START
STO P ” s w i t c h
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
OnceIndicates that the
electronic key
does not operate
properly.
→ P. 3 9 9


394
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
If the engine will not start
If the engine will not start, even though correct starting procedures are
being followed (
→P. 114), consider each of the following points.
■The engine will not start even when the starter motor operates
normally.
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 1 1 4 )
● There may be a malfunction in the engine immobilizer system.
(→ P. 7 0 )
■ The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem.
● The battery may be discharged. ( →P. 4 0 0 )
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
One of the following may be the cause of the problem.
● The engine starting system may be malfunctioning due to an elec-
trical problem such as an open circuit or a blown fuse. However,
an interim measure is available to start the engine. ( →P. 395)

5
When trouble arises
395
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
Emergency start functionWhen the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally. Set the parking brake.
Shift the shift lever to P.
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch about 15 sec-
onds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system may
be malfunctioning. Have the vehicle checked by your Lexus dealer.
■ The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
●One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( →P. 4 0 0 )
● There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4

398
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
If the electronic key does not operate properly
Locking and unlocking the doors and key linked functions
Remove the cover on the driver’s
door handle using the mechanical
key in order to perform the follow-
ing operations. Locks all doors
Closes the windows/standard
moon roof (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows/standard
moon roof (turn and hold)
Return the cover to the original
position after use.
If communication between the electronic key and vehicle is interrupted
(→ P. 26) or the electronic key cann ot be used because the battery is
depleted, smart access system with push-button start and wireless remote
control cannot be used. In such cases, the doors can be opened or the
engine can be started by following the procedure below.

5
When trouble arises
399
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
Changing “ENGINE START STOP” switch modes and starting the engine
Put the shift lever in P and apply the brakes.Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
To change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed.
(→P. 1 1 4 )
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the brake
pedal depressed.
In the event that the “ENGINE START STOP” switch still cannot be oper-
ated, contact your Lexus dealer.
STEP1
STEP2
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing the key battery
As the above procedure is the temporary measure, it is recommend that the elec-
tronic key battery be replaced immediately when the battery depletes. ( →P. 3 3 2 )
STEP3

400
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s
battery is discharged.
You can call your Lexus dealer or qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your Lexus following the steps
below.
Remove the cover.
Connecting the jumper cables. If required, remove all vent plugs from the booster battery. Lay a
cloth over the open vents on the booster battery. (This helps reduce
the explosion hazard, personal injuries and burns.)
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in the
illustration.
STEP1
STEP2

5
When trouble arises
401
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any part other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
Maintain the engine speed on the second vehicle and turn the
“ENGINE START STOP” switch to the IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP3
STEP4
STEP5
STEP6