2012 TOYOTA HIGHLANDER HYBRID battery

476 4-3. Do-it-yourself maintenance
CAUTION
■When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may ca\
use
gas (hydrogen) to enter the passenger co mpartment, causing a fire or explo-
sion.
For replacement of the 12-volt battery, contact your Toyota dealer.
NOTICE
■ When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.

494
4-3. Do-it-yourself maintenance
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

495
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
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

496 4-3. Do-it-yourself maintenance
■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 sm art 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
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. 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.

When trouble arises5
519
5-1. Essential informationEmergency flashers ......... 520
If your vehicle needs to be towed ........................ 521
If you think something is wrong ......................... 527 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 528
If a warning message is displayed........................ 538
If you have a flat tire......... 539
If the hybrid system will not start .......................... 552
If the shift lever cannot be shifted from P................. 554
If you lose your keys/ wireless remote control
transmitter ...................... 555
If the electronic key does not operate
properly .......................... 556
If the 12-volt battery is discharged ..................... 558
If your vehicle overheats ....................... 562
If the vehicle becomes stuck .............................. 566
If your vehicle has to be stopped in an
emergency ..................... 567

520
5-1. Essential information
Emergency flashers
NOTICE
■To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
hybrid system is not operating.
Use the emergency flashers if th e vehicle malfunctions or is
involved in an accident.
Vehicles without navigation system
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.
Vehicles with navigation system Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.

552
5-2. Steps to take in an emergency
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the
situation. Check the following a nd perform the appropriate proce-
dure:
■ The hybrid system will not start, even though the correct
starting procedure is being followed. ( P. 179, 184)
One of the following may be the cause of the problem.
● The electronic key may not be functioning properly. ( P. 556)
● There may be a malfunction in the immobilizer system.
( P. 123)
● There may be a malfunction in the steering lock system.
● The hybrid system may be malfun ctioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malf unction, an interim measure is
available to start the hybrid system. ( P. 553)
■ 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 12-volt battery may be discharged. ( P. 558)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.

5
When trouble arises
553
5-2. Steps to take in an emergency
Emergency start function (vehicles with smart key system)
When the hybrid system does not start, the following steps can be
used as an interim measure to st art the hybrid system if the
“POWER” switch is functioning normally.
Set the parking brake.
Shift the shift lever to P.
Turn the “POWER” switch to ACCESSORY mode.
Push and hold the “POWER” switch about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Ha ve the vehicle checked by your
Toyota dealer.
■ 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 12-volt ba ttery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( P. 558)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4