2010 TOYOTA PRIUS warning

5
When trouble arises
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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
CAUTION
Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indi
cate when the system is not operat-
ing properly. The TPMS (tire pressure warning system) malfunction indi-
cator is combined with the low tire pressure telltale (tire pressure
warning light). When the system detec ts a malfunction, the telltale will
flash for approximately one minute an d then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi cator is illumi-
nated, the system may not be able to detect or signal low tire pressure
as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installati on of replacement or alternate tires
or wheels on the vehicle that prev ent the TPMS (tire pressure warning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction tellt ale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.
NOTICE
■Precaution when installing a different tire
When a tire of a different specification or maker is installed, the tire pres-
sure warning system may not operate properly.

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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and
perform the following actions:
Master warning light
Multi-information display
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
If any of the warning light turns on again after performing the fol-
lowing actions, contact your Toyota dealer.
ITO52P158

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When trouble arises
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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-infor-
mation display. The following warnin gs indicate the possibility of dam-
age to the vehicle that may lead to an accident. Immediately stop the
vehicle in a safe place and contact your Toyota dealer.
Warning messageDetails
Indicates an abnormal engine oil pressure. The warning light may turn on if the engine oil pres-
sure is too low.
Indicates a malfunction in the hybrid system.

510 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Have the vehicle inspected immediately.Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning messageDetails
(If equipped) Indicates a malfunction in the LED headlight system.
Indicates a malfunction in the parking lock system.
(Flashing)
(If equipped) Indicates a malfunction in the pre-collision system.
A buzzer also sounds.

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When trouble arises
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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).

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When trouble arises
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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Warning messageDetailsCorrection
procedure
(If equipped) Indicates that the pre-collision
system is not currently func-
tional because the grille or the
sensor is dirty.
This message also appears
when the pre-collision system
is not functional due to over-
heating. Check the grille
and the sensor and
clean them if they
are dirty. In case of
overheating, the
system will become
functional once the
system cools
down.
(Flashing) 
(If equipped) Indicates that the radar cruise
control sensor is dirty or cov-
ered with ice.
Clean the sensor.
(Flashing) 
(If equipped) Indicates that the radar cruise
control system is unable to
judge vehicle-to-vehicle dis-
tance.
If the windshield
wipers are on, turn
them off or set
them to either the
intermittent or the
slow mode.

514 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Warning messageDetailsCorrection procedure
(If equipped) Indicates that there is a high
risk of a collision, or that the
pre-collision brake function is
operating.
Slow the vehicle by
applying the
brakes.
(If equipped) Indicates that there is a high
risk of a collision.
Slow the vehicle by
applying the
brakes.
(If equipped, flash- ing) Your vehicle is nearing the
vehicle ahead (in radar cruise
mode).
Slow the vehicle by
applying the
brakes.
(Flashing) 
(If equipped) Indicates a malfunction the
LKA.
A buzzer also sounds. Restart the LKA
after restarting the
hybrid system.