battery TOYOTA VENZA 2016 Service Manual

5024-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) Battery
■ Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Te r m i n a l s
Hold-down clamp

5034-3. Do-it-yourself maintenance
4
Maintenance and care
VENZA_OM_OM73030U_(U) ■ Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, before recharging:
● If recharging with the battery installed on the vehicle, be sure to discon-
nect the ground cable.
● Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the battery.
■ After recharging the battery (vehicles with smart key system)
The engine may not start. Follow the procedure below to initialize the sys-
tem.
Depress the brake pedal with the shift lever in “N”.
Open and close any of the doors.
Restart the engine.
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 bat-
tery:
● 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. STEP 1
STEP 2
STEP 3

5044-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) CAUTION■ 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.
■ Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or a burning sensation,
seek medical attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
NOTICE■ When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.

5234-3. Do-it-yourself maintenance
4
Maintenance and care
VENZA_OM_OM73030U_(U) 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 rag.)
● Small Phillips-hea d screwdriver
● Lithium battery
Vehicles with smart key system: CR1632
Vehicles without smar t key system: CR2025
■ Replacing the battery (vehicles with smart key system)
Take out the mechanical key.
Remove the cover.STEP 1
STEP 2

5244-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) Remove the depleted battery. Insert a new battery with the
“+” terminal facing up.
■ Replacing the battery (vehicles without smart key system)
Remove the cover.
Remove the module.STEP 3
STEP 1
STEP 2

5254-3. Do-it-yourself maintenance
4
Maintenance and care
VENZA_OM_OM73030U_(U) ■ 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 CR1632 (vehicles with smar t key system), or CR2025 (vehicles
without 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 a
Toyota dealer.
● Dispose of used batteries according to the local laws. Open the case cover using a
flathead screwdriver pro-
tected with tape etc. and
remove the depleted battery. Insert a new battery with the
“+” terminal facing up.STEP 3

5264-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) 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 electronic key.
● Do not bend the battery terminals.

When trouble arises
5
553
VENZA_OM_OM73030U_(U) 5-1. Essential information
Emergency flashers ......... 554
If your vehicle needs
to be towed .................... 555
If you think something
is wrong ......................... 561
Fuel pump shut off
system ........................... 563 5-2. Steps to take in an
emergency
If a warning light turns
on or a warning
buzzer sounds... ........... 564
If a warning message is
displayed........................ 578
If you have a flat tire......... 579
If the engine will
not start .......................... 590
If the shift lever cannot
be shifted from “P” ......... 593
If you lose your keys ........ 594
If the electronic key does
not operate properly
(vehicles with smart
key system).................... 595
If the battery is
discharged ..................... 598
If your vehicle
overheats ....................... 603
If the vehicle becomes
stuck .............................. 606
If your vehicle has
to be stopped in an
emergency ..................... 608

554
VENZA_OM_OM73030U_(U) 5-1. Essential information
Emergency flashers
■ 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 the road due to a breakdown, etc.
Press the switch. All the turn signal lights will
flash. To turn them off, press
the switch once again.

5
When trouble arises
5715-2. Steps to take in an emergency
VENZA_OM_OM73030U_(U) * : 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. 596)Interior
buzzer Exterior
buzzer Warning
light Warning light/Details Correction
procedure
Once 3 times Smart key system
warning light
Indicates that the
driver’s door has
been opened or
closed with the shift
lever in “P”, the
“ENGINE START
STOP” switch in
any mode other
than off and the
electronic key out-
side of the detec-
tion area. Turn the
“ENGINE
START
STOP”
switch off
or confirm
the loca-
tion of the
electronic
key.
Continuous Continuous Smart key system
warning light
Indicates that the
driver’s door has
been opened or
closed with the shift
lever not in “P”, the
“ENGINE START
STOP” switch in
any mode other
than off and the
electronic key out-
side of the detec-
tion area. • Shift the
shift lever
to “P”.
• Confirm the
location of
the elec-
tronic key.