Page 539 of 684
539
4-3. Do-it-yourself maintenance
4
Maintenance and care
Wireless remote control/electronic key batter y
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver (To prevent damage to the key, cover
the tip of the screwdriver with a rag.)
● Small Phillips-hea d screwdriver
● Lithium battery CR2032 (vehicles without smart key system),
CR1632 (vehicles with smart key system)
■ Replacing the battery (vehicles without smart key system)
Remove the cover using a
coin protected with tape etc.
Remove the discharged trans-
mitter battery.
Insert a new battery with the
“+” terminal facing up.
STEP1
STEP2
Page 540 of 684
540 4-3. Do-it-yourself maintenance
■Replacing the battery (vehicles with smart key system)
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
STEP1
STEP2
STEP3
Page 541 of 684

541
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
If the electronic key battery is discharged
The following symptoms may occur.
●The smart key system and wireless remote control will not function prop-
erly.
● The operational range is reduced.
■ Use a CR2032 (vehicles without smart key system) or CR1632 (vehicles
with smart key system) lithium battery
●Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by your
Toyota dealer.
● Dispose of used batteries according to the local laws.
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 components inside the remote control.
● Do not bend either of the battery terminals.
Page 561 of 684

When trouble arises5
561
5-1. Essential informationEmergency flashers ......... 562
If your vehicle needs to be towed ........................ 564
If you think something is wrong ............................. 571
Fuel pump shut off system ........................... 572 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 573
If a warning message is displayed........................ 584
If you have a flat tire......... 586
If the engine will not start ................................ 600
If the shift lever cannot be shifted from P............ 602
If you lose your keys/ wireless remote control
transmitter ...................... 603
If the electronic key does not operate properly....... 604
If the battery is discharged ..................... 606
If your vehicle overheats ....................... 610
If the vehicle becomes stuck .............................. 613
If your vehicle has to be stopped in an
emergency ..................... 615
Page 600 of 684

600
5-2. Steps to take in an emergency
If the engine will not star t
If the engine still does not start after following the correct starting
procedure (P. 171, 175) or releasing the steering lock ( P. 173,
176), confirm the fo llowing points.
■The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( P. 171, 175)
● There may be a malfunction in the engine immobilizer system
(if equipped). ( P. 11 3 )
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. ( P. 606)
● The battery terminal connec tions may be loose or corroded.
■ The starter motor does not turn over (vehicles with smart
key system).
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
( P. 601)
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5
When trouble arises
601
5-2. Steps to take in an emergency
Emergency start function (vehicles with smart key system)
When 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 ST OP” switch to ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be start ed using the above steps, the system
may be malfunctioning. Have the vehicle checked by your Toyota
dealer.
■ The starter motor does not turn over, the interior lights and
headlights 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. 606)
● There may be a malfunction in the steering lock system (vehi-
cles with smart key system).
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4
Page 604 of 684

604
5-2. Steps to take in an emergency
If the electronic key does not operate properly (vehicles with smart key system)
Locking and unlocking the doors, and mechanical key linked functions
Using the mechanical key (P. 33)
in order to perform the following
operations:
Locks all doors
Unlocks all doors
Turning the key rearward unlocks
the driver’s door. Turning the key
once again unlocks the other
doors.
Starting the engine
Shift the shift lever to P and apply the brakes. Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
If any of the doors is opened and
closed while the key is being
touched to the switch, an alarm
will sound to indicate that the start
function cannot detect the elec-
tronic key.
If communication between the electronic key and vehicle is inter-
rupted (P. 40) or the electronic key cannot be used because the
battery is depleted, the smart key system and wireless remote con-
trol cannot be used. In such cases, the doors can be opened or the
engine can be started by following the procedure below.
STEP1
STEP2
Page 605 of 684
5
When trouble arises
605
5-2. Steps to take in an emergency
Press the “ENGINE START STOP” switch within 5 seconds
after the buzzer sounds, keepin
g the brake pedal depressed.
In the event that the “ENGINE ST ART STOP” switch still cannot be
operated, contact your Toyota dealer.
■ Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as
you normally do when stopping the engine.
■ Replacing the electronic key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery depletes.
(P. 540)
■ Changing “ENGINE START STOP” switch modes
Within 5 seconds of the buzzer sounding, release the brake pedal and press
the “ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch
is pressed. ( P. 172)
STEP3