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7-3. Do-it-yourself maintenance
7
Maintenance and care
Wireless remote control/electronic key
batter y
●Flathead screwdriver
● Lithium battery CR2032
Vehicles without a smart key system
Remove the cover using a coin
protected with tape etc.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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7-3. Do-it-yourself maintenance
Vehicles with a smart key system
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 “+”
terminal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur.
●The smart key system (if equipped) and wireless remote control will not
function properly.
● The operational range will be reduced.
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7-3. Do-it-yourself maintenance
Checking and replacing fuses
Turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehic les with a smart key system).
Open the fuse box cover.
Remove the fuse.
Only type A fuses can be removed
using the pullout tool.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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Engine compartmentDriver’s side instrument panel
Push the tab in and lift the lid off. Remove the lid.
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8When trouble arises
8-1. Essential informationEmergency flashers .......... 532
If your vehicle has to be stopped in an
emergency ...................... 533 8-2. Steps to take in an
emergency
If your vehicle needs to be towed ......................... 535
If you think something is wrong .............................. 539
Fuel pump shut off system ............................ 540
If a warning light turns on or a warning buzzer
sounds ............................ 541
If a warning message is displayed ......................... 550
If you have a flat tire (vehicles with
run-flat tires) .................... 566
If you have a flat tire (vehicles with a compact
spare tire) ........................ 568
If the engine will not start ................................. 582
If the shift lever cannot be shifted from P ............. 584
If the electronic key does not operate properly
(vehicles with a smart
key system) ..................... 585
If the battery is discharged ...................... 587
If your vehicle overheats ... 591
If the vehicle becomes stuck ............................... 594
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8
When trouble arises
8-1. Essential information
If your vehicle has to be stopped in an emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
Vehicles without a smart key
system: Stop the engine by
turning the engine switch to the
“ACC” position.
Vehicles with a smart key sys-
tem: To stop the engine, press
and hold the engine switch for 2
consecutive seconds or more,
or press it briefly 3 times or
more in succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, st op the vehicle using the follow-
ing procedure:
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2
3
4
3
4
Press and hold for 2 seconds or
more or press briefly 3 times or
more
R
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5348-1. Essential information
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WARNING
■If the engine has to be turned off while driving
●Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
● Vehicles without a smart key system: Never attempt to remove the key, as
doing so will lock the steering wheel.
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5378-2. Steps to take in an emergency
SIENNA_OM_OM08013U_(U)
8
When trouble arises
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■ While towing
Do not turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system).
There is a possibility that the steering wheel is locked and cannot be oper-
ated.
2WD models: Be sure to transport the
vehicle with the front wheels raised or
with all four wheels raised off the ground.
If the vehicle is towed with the front
wheels contacting the ground, the driv-
etrain and related parts may be dam-
aged.
AWD models: Be sure to transport the
vehicle with all four wheels raised off the
ground. If the vehicle is towed with the
tires contacting the ground, the drivetrain
or related parts may be damaged, the
vehicle may fly off the truck.
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8-2. Steps to take in an emergency
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart key system
Turn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
Vehicles with a smart key system
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops the supply of fuel to the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
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