2013 TOYOTA IQ battery

195
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■
When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
ItemsParts and tools
Light bulbs ( P. 251)• Bulb with same number and watt-
age rating as original
• Flathead screwdriver
Radiator and condenser (P. 214) 
Tire inflation pressure (
P. 228) • Tire pressure gauge
• Compressed air source
Washer fluid
(P. 218) • Water washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding washer fluid)

208
4-3. Do-it-yourself maintenance
Engine compar tment
Engine oil filler cap ( P. 210)
Engine oil level dipstick ( P. 209)
Battery ( P. 216)
Brake fluid reservoir ( P. 215)
Fuse box ( P. 240)Washer fluid tank ( P. 218)
Radiator ( P. 214)
Electric cooling fan
Condenser ( P. 214)
Engine coolant reservoir ( P. 213)
Fuse box ( P. 240)

216 4-3. Do-it-yourself maintenance
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
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious pro\
blem.
■ If you spill fluid
Be sure to wash it off with water to prevent damage to parts or paint.
■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.

217
4-3. Do-it-yourself maintenance
4
Maintenance and care
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.
■ 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 (5A 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 burning, get 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.

218 4-3. Do-it-yourself maintenance
Washer fluidIf any washer does not work or the low washer fluid warning light
comes on, the washer tank may be empty. Open the lid.
Add washer fluid.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
CAUTION
■When refilling the washer fluid
Do not refill the washer fluid when the engine is hot or running, as the
washer fluid contains alcohol and may catch fire if spilled on the engine, etc.

238
4-3. Do-it-yourself maintenance
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 tape.)
● Lithium battery (CR2016)
■ Replacing the battery
Remove the cover.
Remove the module.
Remove the battery cover and
the depleted battery.
Insert a new battery with the
“+” terminal facing up.

239
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
If the key battery is discharged
The following symptoms may occur.
●The wireless remote control will not function properly.
● The operational range is reduced.
■ Use a CR2016 lithium battery
●Batteries can be purchased at your Scion dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by your
Scion dealer.
● Dispose of used batteries according to 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
263
5-1. Essential informationEmergency flashers ......... 264
If your vehicle needs to be towed ........................ 265
If you think something is wrong ............................. 271
Fuel pump shut off system ........................... 272 5-2. Steps to take in
an emergency
If a warning light turns on or a warning buzzer
sounds... ........................ 273
If you have a flat tire......... 284
If the engine will not start ................................ 301
If the shift lever cannot be shifted from P............ 303
If you lose your keys ........ 304
If the vehicle battery is discharged ..................... 305
If your vehicle overheats ....................... 308
If the vehicle becomes stuck .............................. 311
If your vehicle has to be stopped in
an emergency ................ 313