2017 TOYOTA SIENNA battery

511
SIENNA_OM_OM08007U_(U)
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
1
2

512
SIENNA_OM_OM08007U_(U)
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.
1
2
3

SIENNA_OM_OM08007U_(U)
5137-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■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.

535
SIENNA_OM_OM08007U_(U)
8When trouble arises
8-1. Essential informationEmergency flashers .......... 536
If your vehicle has to be stopped in an
emergency ...................... 537 8-2. Steps to take in an
emergency
If your vehicle needs to be towed ......................... 539
If you think something is wrong .............................. 543
Fuel pump shut off system ............................ 544
If a warning light turns on or a warning buzzer
sounds ............................ 545
If a warning message is displayed ......................... 554
If you have a flat tire (vehicles with
run-flat tires) .................... 570
If you have a flat tire (vehicles with a compact
spare tire) ........................ 572
If the engine will not start ................................. 586
If the electronic key does not operate properly
(vehicles with a smart
key system) ..................... 588
If the battery is discharged ...................... 590
If your vehicle overheats ........................ 594
If the vehicle becomes stuck ............................... 597

536
SIENNA_OM_OM08007U_(U)
8-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not
operating, the battery may discharge.
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in th e road due to a breakdown, etc.

5498-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (rear), driver’s
seat position sensor, driver’s seat belt buckle switch, front passenger occu-
pant classification system (ECU and sensors), “AIR BAG ON” indicator light,
“AIR BAG OFF” indicator light, front passenger’s seat belt buckle switch, seat
belt assemblies, airbags, interconnecting wiring and power sources. ( P. 36)
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the malfunction indicator la mp 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 light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sound.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (after a few minutes).

5668-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
InteriorbuzzerExterior buzzerWarning messageDetails/Actions

Power was turned off due to the
automatic power off function.
 Next time when starting
the engine, increase the
engine speed slightly and
maintain that level for
approximately 5 minutes
to recharge the battery.
Con-
tinu-
ous  The driver’s door was opened
while any shift position other
than P was selected without
turning off the engine switch.

Shift the shift position to P.
Con-
tinu-
ousContin-
uous
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while any shift position
other than P was selected with-
out turning off the engine
switch.
Shift the shift position to P.
 Bring the electronic key
back into the vehicle.
Once  An attempt was made to start
the engine without the elec-
tronic key being present, or the
electronic key was not function-
ing normally.

Start the engine with the
electronic key present.
An attempt was made to drive
when the regular key was not
inside the vehicle.
 Confirm that the elec-
tronic key is inside the
vehicle.
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)

5698-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
■Messages displays
The message illustrations used are intended as examples, and may differ
from the image that is actually displayed on the multi-information display.
■ Warning buzzer
P. 550
Once
The driver’s door was opened
and closed with the engine
switch turned off and then the
engine switch was put in
ACCESSORY mode twice with-
out the engine being started.
 Press the engine switch
while depressing the brake
pedal.
During a engine starting proce-
dure in the event that the elec-
tronic key was not functioning
properly ( P. 588), the engine
switch was touched with the
electronic key.
 Press the engine switch
within 10 seconds of the
buzzer sounding.
Once
The steering lock could not be
released within 3 seconds of
the engine switch being
pressed.
Press the engine switch
while depressing the brake
pedal and moving the
steering wheel left and
right.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. ( P. 511)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)