oil pressure TOYOTA YARIS HATCHBACK 2020 Owners Manual (in English)

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5-3. Owner Maintenance
Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle
inspections at the indicated intervals to ensure safe and depen dable
operation.
Bring any problem to the attention of your Toyota dealer or qua lified
service technician a s soon as possible.
■When Refueling
• Brake and clutch fluid level ( P. 401)
• Engine coolant level ( P. 3 9 8 )
• Engine oil level ( P. 397)
• Washer fluid level ( P. 402)
■At Least Monthly
• Tire inflation pressures ( P. 413)
■At Least Twice a Year (For Exam ple, Every Spring and Fall)
You can do the following scheduled maintenance items if you hav e
some mechanical ability and a few basic tools and if you closel y fol-
low the directions in this manual.
• Engine coolant ( P. 398)
• Engine oil ( P. 395)
Improper or incomplete service may result in problems. This sec tion
gives instructions only for it ems that are easy to perform.
As explained in the Introduction ( P. 386), several procedures can be
done only by a qualifi ed service technician with special tools.
Improper owner maintenance during the warranty period may affec t
warranty coverage. Refer to Introduction ( P. 386) for owner’s
responsibility in protecting your investment. For details, read the sep-
arate Toyota Warranty and Maintenance Guide provided with the v ehi-
cle. If you are unsure about any servicing or maintenance proce dure,
have it done by your Toyota dealer.
There are strict environmental laws regarding the disposal of w aste oil
and fluids. Please dispose of your waste properly and with due regard
to the environment.
We recommend that you entrust the oil and fluid changes of your vehi-
cle to your Toyota dealer.

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4495-4. Appearance Care
5
Maintenance and Care
• When cleaning the plastic lenses of the lights, do not use gasoline,
kerosene, rectified spirit, paint, thinner, highly acidic deter gents, or
strongly alkaline detergents. Ot herwise, these chemical agents can
discolor or damage the surfaces resulting in a significant loss in
functionality. If plastic parts become inadvertently exposed to any of
these chemical age nts, flush with water immediately.
• If plastic parts such as the bumpers become inadvertently exposed to chemical agents or fluids such as gasoline, oil, engine cool ant, or
battery fluid, it could cause di scoloration, staining, or paint peeling.
Wipe off any such chemical agents or fluids using a soft cloth imme-
diately.
• High water temperature and high water pressure car washers are available depending on the type of high pressure car washer
device. If the car washer nozzle is put too close to the vehicl e or
aimed at one area for an extended period of time, it could defo rm
plastic parts or damage the paint.
• Do not use wax containing compounds (polish). Otherwise, it co uld
result in paint damage.
• In addition, do not use an electrical or air tool to apply wax . Other-
wise, the frictional heat generat ed could result in deformation of
plastic parts o r paint damage.
NOTICE
●Do not use any detergent other than mild detergent. Before usin g any
detergent, verify the ingredients.
Otherwise, the product could discolor or stain the aluminum whe els.
● Do not use a wire brush or any abrasive cleaner, polishing comp ound, or
solvent on aluminum wheels. They may damage the coating.
● Always use a sponge or soft cloth to clean the wheels.
Rinse the wheels thoroughly with lukewarm or cold water. Also, be sure to
clean the wheels after driving on dusty or salted roads to help prevent cor-
rosion.
● Avoid washing your vehicle in an automatic car wash that uses h igh-speed
or hard brushes.
Plastic Part Maintenance

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4776-2. Flat Tire
6
If Trouble Arises
WARNING
■Make sure the mounting surfaces of the wheel, hub and lug nuts
are clean before changing or replacing tires
When changing or replacing a tire , not removing dirt and grime from the
mounting surfaces of the wheel, hub and hub bolts is dangerous. The
lug nuts could loosen while driving and cause the tire to come off, result-
ing in an accident.
■Do not apply oil or grease to lug nuts and bolts and do not tig hten
the lug nuts beyond the r ecommended tightening torque
Applying oil or grease to lug nuts and bolts is dangerous. The lug nuts
could loosen while dri ving and cause the tire to come off, resulting in an
accident. In addition, lug nuts and bolts could be damaged if t ightened
more than necessary.
■Always securely and correctly tighten the lug nuts
Improperly or loosely tightened lug nuts are dangerous. The whe el
could wobble or come off. This could result in loss of vehicle control and
cause a serious accident.
■Be sure to reinstall the same nuts you removed or replace them
with metric nuts of the same configuration
Because the wheel studs and lug nuts on your Toyota have metric
threads, using a non-metric nut is dangerous. On a metric stud, it would
not secure the wheel and would damage the stud, which could cau se
the wheel to slip off and cause an accident.
■Do not drive with any tires th at have incorrect air pressure
Driving on tires with incorrect air pressure is dangerous. Tire s with
incorrect pressure could affect handling and result in an accid ent. When
you check the regular tires’ air pressure, check the spare tire , too.

4906-7. Warning/Indicator Lights and Warning Sounds
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Electronic Brake Force Distribution System Warning
If the electronic brake force distribution control unit deter-
mines that some components are operating incorrectly,
the control unit may illuminate the brake system warning
light and the ABS warning light simultaneously. The prob-
lem is likely to be the electronic brake force distribution
system.
Charging System Warning Light
If the warning light illuminates while driving, it indicates a
malfunction of the alternator or of the charging system.
Drive to the side of the road and park off the right-of-way.
Consult your Toyota dealer.
Engine Oil Warning LightThis warning light indicates low engine oil pressure.
If the light illuminates or the warning indication is dis-
played while driving:
Drive to the side of the road and park off the right-of-
way on level ground.
Turn off the engine and wait 5 minutes for the oil to
drain back into the oil pan.
Inspect the engine oil level P. 397. If it’s low, add the
appropriate amount of engine oil while being careful
not to overfill.
Start the engine and check the warning light.
If the light remains illuminated even though the oil level is
normal or after adding oil, stop the engine immediately
and have your vehicle towed to your Toyota dealer.
SignalWarning
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4926-7. Warning/Indicator Lights and Warning Sounds
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■Power Steering Malfunction Indicator Light
●If the indicator light illuminates/flashes, the power steering will not operate
normally. If this happens, the steering wheel can still be operated, however,
the operation may feel heavy compared to normal, or the steering wheel
could vibrate when turning.
● Repeatedly jerking the steering wheel left and right while the vehicle is
stopped or moving extremely slowly will cause the power steerin g system to
go into protective mode which will make the steering feel heavy , but this
does not indicate a problem. If this occurs, park the vehicle safely and wait
several minutes for the system to return to normal.
WARNING
■ Do not drive with the brake system warning light illuminated. C ontact
your Toyota dealer to have the brakes inspected as soon as poss ible
Driving with the brake system warning light illuminated is dang erous. It indi-
cates that your brakes may not work at all or that they could c ompletely fail
at any time. If this light remains illuminated, after checking that the parking
brake is fully released, have the brakes inspected immediately.
In addition, the effectiveness of the braking may diminish so y ou may need
to depress the brake pedal more strongly than normal to stop th e vehicle.
■ Do not drive with both the ABS warning light and brake warning light
illuminated. Have the vehicle towed to your Toyota dealer to have the
brakes inspected as soon as possible
Driving when the brake system warning light and ABS warning lig ht are illu-
minated simultaneously is dangerous.
When both lights are illuminated, the rear wheels could lock mo re quickly in
an emergency stop than under normal circumstances.
NOTICE
■ Charging System Warning Light
Do not continue driving when the charging system warning light is illumi-
nated because the engine could stop unexpectedly.
■ Engine Oil Warning Light
● Do not run the engine if the oil pressure is low. Otherwise, it could result in
extensive engine damage.
● Do not run the engine if the oil level is low. Otherwise, it co uld result in
extensive engine damage.
■ High Engine Coolant Temperature Warning Light
Do not drive the vehicle with the high engine coolant temperatu re warning
light illuminated. Otherwise, it could result in damage to the engine.