2014 Lexus ES300h key

719
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
6
Maintenance and care
Electronic key battery
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover
the tip of the screwdriver with a rag.
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3

720
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus dealer, local electrical appliance shops
or camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to local laws.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range will be reduced.
CAUTION
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep
away from children. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.

747
ES350_300h_OM_OM33A60U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers................... 748
If your vehicle has to be stopped in an emergency .....749 7-2. Steps to take in an emergency
If your vehicle needs to be towed .................................. 751
If you think something is wrong .................757
Fuel pump shut off system (gasoline vehicles) .................. 758
If a warning light turns on or a warning buzzer sounds ..... 759
If a warning message is displayed ................................. 769
If you have a flat tire................... 792
If the engine will not start (gasoline vehicles) ................. 805
If the hybrid system will not start (hybrid vehicles) ............ 807
If the shift lever cannot be shifted from P .................... 809
If the electronic key does not operate properly ...................... 810
If the 12-volt battery is discharged (gasoline
vehicles) ....................................... 813
If the 12-volt battery is discharged (hybrid
vehicles) ....................................... 817
If your vehicle overheats (gasoline vehicles) ................... 821
If your vehicle overheats (hybrid vehicles) ...................... 824
If the vehicle becomes stuck .............................................828

7857-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
After taking the specified steps to correct the suspected problem, check
that the warning message and light go off.
Have the malfunction repaired immediately.
Interior buzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
The electronic key
is not detected
when an attempt is
made to start the
engine tem>.Start the
engine with
the elec-
tronic key
present.
Once3
times
The electronic key
was carried out-
side the vehicle and
a door other than
the driver’s door
was opened and
closed while the
“START STOP
ENGINE”
<“POWER”> switch
was in a mode
other than off.
Bring the
electronic
key back
into the
vehicle.
The driver’s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was in
P and the “START
STOP ENGINE”
<“POWER”> switch
was not turned off.Tu r n t h e
“START
STOP
ENGINE”
<“POWER”
> switch off
or bring the
electronic
key back
into the
vehicle.
(Flashes)
(Flashes)

7867-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
OnceCon-
tinuous
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors with-
out first turning the
“START STOP
ENGINE”
<“POWER”> switch
off when the shift
lever was in P.
Tu r n t h e
“START
STOP
ENGINE”
<“POWER”>
switch off
and lock the
doors again.
9
times
An attempt was
made to drive when
the regular key was
not inside the vehi-
cle.Confirm
that the
electronic
key is inside
the vehicle.
Con-
tinuous
The driver’s door
was opened when
the shift lever was
not in P and the
“START STOP
ENGINE”
<“POWER”> switch
was not turned off.
Shift the
shift lever to
P.
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)

7877-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Con-
tinuousCon-
tinuous
The driver’s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was
not in P and the
“START STOP
ENGINE”
<“POWER”> switch
was not turned off.
• Shift the shift lever
to P.
•Bring the elec-
tronic key
back into
the vehi-
cle.
Con-
tinuous
An attempt was
made to lock the
doors using the
smart access sys-
tem with push-but-
ton start while the
electronic key was
still inside the vehi-
cle.
Retrieve the
electronic
key from the
vehicle and
lock the
doors again.
OnceCon-
tinuous
An attempt was
made to lock either
front door by open-
ing a door and put-
ting the inside lock
button into the lock
position, then clos-
ing the door with
the electronic key
still inside the vehi-
cle.
Retrieve the
electronic
key from the
vehicle and
lock the
doors again.
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)

7887-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
Gasoline vehicles
Hybrid vehicles
•When the doors were unlocked
with the mechan-
ical key and then
the “START
STOP ENGINE”
<“POWER”>
switch was
pressed, the
electronic key
could not be
detected in the
vehicle.
• The electronic key could not be
detected in the
vehicle even after
the “START
STOP ENGINE”
<“POWER”>
switch was
pressed two con-
secutive times.
To u c h t h e
electronic
key to the
“START
STOP
ENGINE”
<“POWER”>
switch while
depressing
the brake
pedal.
Once
Gasoline vehicles
Hybrid vehicles
An attempt was
made to start the
engine tem> with the shift
lever in an incorrect
position.Shift the
shift lever to
P and start
the engine
tem>.
(Flashes)
(Flashes)
(Flashes)
(Flashes)

7897-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure

Power was turned
off due to the auto-
matic power off
function.
Next time
when start-
ing the
engine
tem>,
increase the
engine
speed
slightly and
maintain
that level for
approxi-
mately 5
minutes to
recharge
the 12-volt
battery.
OnceThe electronic key
has a low battery.
Replace the
electronic
key batter y.
(  P. 7 1 9 )