2012 TOYOTA RAV4 key battery

378 4-3. Do-it-yourself maintenance
■After recharging/reconnecting the battery (vehicles with smart key sys-
tem)
In some cases, the engine may not start. Follow the procedure below to ini-
tialize the system.
Shift the shift lever to P, and turn the “ENGINE START STOP”
switch OFF.
Open and close any of the doors.
Start the engine. (If the engine does not start first time, repeat the
procedure.)
CAUTION
■Chemicals in the battery
A battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
●Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
■ Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is not sufficient ventilation.
■ How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if
charged at a quicker rate.
STEP 1
STEP 2
STEP 3

397
4-3. Do-it-yourself maintenance
4
Maintenance and care
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 Flathead screwdriver
● Lithium battery CR2016 (vehicles without smart key system)
or CR1632 (vehicles with smart key system)
■ Replacing the battery (vehicles without smart key system)
Remove the cover.
Remove the module.
STEP 1
STEP 2

398 4-3. Do-it-yourself maintenance
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the
“+” terminal facing up.
■Replacing the battery (vehicles with smart key system)
Take out the mechanical key.
Remove the cover.
STEP 3
STEP 1
STEP 2

399
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
If the key battery is depleted
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 CR2016 (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
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.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
STEP 3

When trouble arises5
423
5-1. Essential informationEmergency flashers ......... 424
If your vehicle needs to be towed ........................ 425
If you think something is wrong ......................... 432
Fuel pump shut off system ........................... 433
Event data recorder ......... 434 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 436
If you have a flat tire (vehicles with
standard tires) ................ 449
If you have a flat tire (vehicles with
run-flat tires)................... 467
If the engine will not start ................................ 468
If the shift lever cannot be shifted from P............ 469
If you lose your keys ........ 470
If the electronic key does not operate properly....... 471
If the battery is discharged ..................... 473
If your vehicle overheats ....................... 476
If the vehicle becomes stuck .............................. 478
If your vehicle has to be stopped in an
emergency ..................... 480

5
When trouble arises
443
5-2. Steps to take in an emergency
*: If the engine does not start when the electronic key is inside the vehicle, the
electronic key battery may be depleted or there may be difficulties receiving
the signal from the key. ( P. 30)
ContinuousContinuous
Smart key system warning
light
Indicates that the driver’s
door has been opened and
closed with the shift lever not
in P, the “ENGINE START
STOP” switch in any mode
other than OFF and the elec-
tronic key has been taken out
of the detection area. • Shift the shift
lever to P.
• Confirm the location of the
electronic
key.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
■ Front passenger detection sensor and passenger seat belt reminder
● If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash, even if a passen-
ger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
■ Electric power steering warning light
The electric power steering warning light may come on when the voltage is
low or the voltage drops.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection procedure

468
5-2. Steps to take in an emergency
If the engine will not star t
If the engine will not start even though correct starting procedures
are being followed (P. 145, 149) or releasing the steering lock, ( P.
145, 149), consider each of the following 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. 145, 149)
● There may be a malfunction in the engine immobilizer system.
(  P. 9 5 )
■ 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. 473)
● The battery terminal connec tions may be loose or corroded.
■ 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. 473)
● 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.

5
When trouble arises
471
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 with the mechanical keyUsing the mechanical key (P. 24)
in order to perform the following
operations:
Locks all doors
Unlocks all doors
Turning the key unlock the
driver’s door. Turning the key
once again unlocks the other
doors.
Changing “ENGINE START STOP” switch modes and 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 elect ronic key and the vehicle is inter-
rupted ( P. 30) 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 and back door can be
opened and the engine can be st arted by following the procedure
below.
STEP 1
STEP 2