Page 340 of 492

3406-3. Do-it-yourself maintenance
WARNING
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
● Make sure that the “READY” indicator is off.
● Keep hands, clothing and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, power control unit, 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 and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■ When working near the electric co oling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, t he electric cooling fans may automati-
cally start to run if the air condition ing is on and/or the coolant temperature
is high. ( →P. 349)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.
Page 344 of 492
3446-3. Do-it-yourself maintenance
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oilPark the vehicle on level ground. After warming up the engine
and turning off the hybrid system , wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end,
pull the dipstick out and
check the oil level.
Low
Normal
Excessive
The shape of the dipstick may
differ depending on the type of
vehicle or engine.
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
3
4
5
1
2
3
6
Page 440 of 492
4408-1. Specifications
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice
for good fuel economy and
good starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
How to read oil container label
The International Lubricant
Specification Advisory Commit-
tee (ILSAC) Certification Mark
is added to some oil containers
to help you select the oil you
should use.
Outside temperature
Page 480 of 492

480Alphabetical index
Eco drive mode ........................ 259
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................... 70
Electric Power
Steering (EPS) ....................... 262 Function ................................ 262
Warning light ......................... 399
Electronic key .......................... 106 Battery-saving function ......... 125
If the electronic key does not operate properly ................. 422
Replacing the battery ............ 373
Emergency flashers ................ 392
Emergency, in case of
If the 12-volt battery is discharged .......................... 424
If the electronic key does not operate
properly .............................. 422
If the hybrid system will not start ........................ 420
If the trunk opener is not
actuated.............................. 119
If the warning buzzer sounds .................... 398
If the warning light
turns on .............................. 398
If the warning message is displayed......................... 407
If you have a flat tire ............. 408
If you think something is wrong .............................. 397
If your vehicle becomes stuck ................................... 433
If your vehicle has to be
stopped in an emergency ... 393
If your vehicle needs to be towed ......................... 394
If your vehicle overheats ....... 429 Energy monitor ........................ 100
Engine
ACCESSORY mode ............. 173
Compartment ........................ 343
Engine switch ....................... 172
Hood ..................................... 341
How to start the hybrid system .... ................. 172
Identification number ............ 437
Ignition switch (power switch) .................... 172
Overheating .......................... 429
Power switch ........................ 172
Engine coolant......................... 347
Capacity................................ 441
Checking............................... 347
Preparing and checking before winter ...................... 269
Engine coolant temperature gauge ....................................... 90
Engine oil ................................. 344 Capacity................................ 439
Checking............................... 344
Preparing and checking before winter ...................... 269
Engine switch .......................... 172
EPS (Electronic Power Steering)..................... 262 Function ................................ 262
Warning light......................... 399
EV drive mode ......................... 178
Event data recorder (EDR)........ 11
E