reset TOYOTA PRIUS 2010 3.G Owner's Manual

449
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
CAUTION
■When inspecting or replacing tires
Observe the following precautions to
prevent accidents. Failure to do so
may cause damage to parts of the drive train, as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or
serious injury.
●Do not mix tires of different ma kes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed tire s (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and winter tires.
●Do not use tires that have been used on another vehicle. 
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not push the tire pressure warnin g reset switch without first adjusting
the tire inflation pressure to the spec ified level. Otherwise, the tire pres-
sure warning light may not come on even if the tire inflation pressure is
low, or it may come on when the tire inflation pressure is actually normal.

5
When trouble arises
503
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
■
Front passenger detection sensor and passenger seat belt reminder
● If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash, even if a passen-
ger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning reset switch does not turn off the tire
pressure warning light.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such
as natural air leaks or 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).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with the tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire is replaced with the spare tire.
Replace the spare tire with the repair ed tire and adjust the proper tire
inflation pressure. The ti re pressure warning light will turn off after a few
minutes.

5
When trouble arises
511
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Warning messageDetails
(Flashing)
(If equipped) Indicates a malfunction in the radar cruise control sys-
tem.
A buzzer also sounds.
Stop the vehicle in a safe place. Turn the “POWER”
switch to OFF and then to ON mode again to reset
the cruise control system.

512 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Follow the correction procedures.After taking the specified steps to correct the suspected problem,
check that the warning message turns off.
Warning messageDetailsCorrection procedure
(U.S.A. only) Indicates that the engine oil is
scheduled to be changed.
A buzzer also sounds.
Check the engine
oil, and change if
necessary.
Comes on approximately 4500
miles (7200 km) after the
engine oil is changed. (The
indicator will not work properly
unless the oil maintenance
data has been reset).
(U.S.A. only) Indicates that the engine oil
should be changed.
A buzzer also sounds.
Check and change
the engine oil.
Comes on approximately 5000
miles (8000 km) after the
engine oil is changed (and the
oil maintenance data has been
reset).

516 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Warning messageDetailsCorrection procedure
EV-Drive Mode cannot be
switched to. A buzzer also sounds. Use the EV-Drive
Mode when it
becomes available.
The EV-Drive Mode has been
automatically cancelled. A buzzer also sounds. Drive normally for a
short time.
■ After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P. 428)
■ Approach warning message
In the following instances, there is the possibility that the approach warning
will not activate even when the vehicle-to-vehicle distance decreases.
● When your vehicle and the vehicle ahead are traveling at the same
speed or the vehicle ahead is traveling more quickly than your vehicle.
● When the vehicle ahead is traveling at very low speed.
● Immediately after cruise control speed is set.
● At the instant the accelerator pedal is depressed.

522 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once 
(Flashing)The elec-
tronic key
does not
operate
properly.
P. 542
 Power
was
turned off
due to
the auto-
matic
power off
function.Next time when
starting the
hybrid system,
increase the
engine speed
slightly and
maintain that
level for approxi-
mately 5 min-
utes to recharge
the battery.
■ Changing the engine oil
Make sure to reset oil change system.

5
When trouble arises
523
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
NOTICE
■
While the engine oil level warning is displayed
Continued engine operation with low engine oil will damage the engine.
■ Engine oil maintenance message
The warning message is based on the projected driving range after engine
oil maintenance message is reset. 
The system does not monitor the purity of the engine oil.

5
When trouble arises
533
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
■
When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning
valve and transmitter, low inflation pressure of the spare tire will not be
warned. Also, if you replace the compac t spare tire after the tire pressure
warning light comes on, the light remains on.
■ If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on the rear of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front tires.
Replace a rear tire with the compact spare tire.
Replace the flat front tire with t he tire removed from the rear of
the vehicle.
Fit tire chains to the front tires.
■After completing the tire change
The tire pressure warning system must be reset. (P. 442)
■Jack point guide
STEP1
STEP2
STEP3
The jack point guides are located under
the rocker panel. They indicate the jack
point positions.