Page 515 of 662

5177-3. Do-it-yourself maintenance
7
Maintenance and care
and .
Engage the 4 center claws to install
the filter.
Make sure that t he filter is not
crooked or deformed when install-
ing it.
7 Install the air intake vent
cover.
I ns er t t he t ab o f th e co ve r a s sh ow n
in the illustrati on and push the
cover to engag e the 8 claws.
8Install the clip.
■Cleaning the air intake vent
●Dust in the air intake vent may
interfere with the cooling of the
DC/DC converter . If the cooling
performance/capacity of the
DC/DC converter becomes lim-
ited, the 12-volt battery may dis-
charge. Inspect and clean the air
intake vent periodically.
●Improper handling of the air intake
vent cover and filt er may result in
damage to them. If you have any
concerns about cleaning the filter,
contact your Toyota dealer.
■If “Maintenance required for
DCDC converter cooling parts
See Owner’s Manual” is shown
on the multi-information display
●If this warning message is shown
on the multi-information display,
remove the air intake vent cover
and clean the filter. ( P.516)
●After cleaning the air intake vent,
start the hybrid system and check
that the warning message is no
longer shown.
It may take approximately 20 min-
utes after the hybrid system is
started until the warning message
disappears. If the warning mes-
sage does not disappear, have
the vehicle inspected by your
Toyota dealer.
BA
Page 516 of 662

5187-3. Do-it-yourself maintenance
WARNING
■When cleaning the air intake
vent
●Before cleaning the air intake
vent, make sure to turn the
power switch off to stop the
hybrid system.
●Do not use water or other liq-
uids to clean the air intake vent.
If water is applied to the DC/DC
converter or other components,
a malfunction or fire may occur.
NOTICE
■When cleaning the air intake
vent
When cleaning the air intake vent,
make sure to only use a vacuum
to suck out dust and clogs. If a
compressed air blow gun, etc. is
used to blow out dust and clogs,
the dust or clogs may be pushed
into the air intake vent, which may
affect the performance of the
DC/DC converter and cause a
malfunction.
■To prevent damage to the
vehicle
●Do not allow water or foreign
matter to enter t he air intake
vent when the cover is
removed.
●Carefully handle the removed
filter so that it will not be dam-
aged. If the filter is damaged,
have it replaced with a new filter
by your Toyota dealer.
●Make sure to reinstall the filter
and cover to their original posi-
tions after cleaning.
●Do not install anything to the air
intake vent other than the exclu-
sive filter for this vehicle or use
the vehicle witho ut the filter
installed.
■If “Maintenance required for
DCDC converter cooling parts
See Owner’s Manual” is
shown on the multi-informa-
tion display
If the vehicle is continuously
driven with the warning message
(indicating that the cooling perfor-
mance/capacity of the DC/DC
converter may become limited)
displayed, the DC/DC converter
may malfunction. If the warning
message is displayed, clean the
air intake vent immediately.
Page 540 of 662

5428-2. Steps to take in an emergency
■High coolant temperature warning light* (warning buzzer)
*: This light illuminates on the mu lti-information display with a message.
■Hybrid system overheat warning light* (warning buzzer)
*: This light illuminates on the mu lti-information display with a message.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the mu lti-information display with a message.
■Malfunction indicator lamp
Warning lightDetails/Actions
Indicates that the engine is overheating
Immediately stop the vehicle in a safe
place.
Handling method ( P.574)
Warning lightDetails/Actions
Indicates that the hybrid system has overheated
Stop the vehicle in a safe place.
Handling method ( P.574)
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe
place and contact your Toyota dealer.
Warning lightDetails/Actions
(U.S.A.)
(Canada)
Indicates a malfunction in:
The hybrid system;
The electronic engi ne control system;
The electronic throttle control system; or
The emission control s ystem (if equipped)
Have the vehicle inspected by your Toyota
dealer immediately.
Page 542 of 662

5448-2. Steps to take in an emergency
■PCS warning light (warning buzzer)
■LTA indicator (warning buzzer)
■Intuitive parking assist OFF indicator (warning buzzer)
Warning lightDetails/Actions
(Flashes or illuminates)
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS
(Pre-Collision System).
Have the vehicle inspected by your Toyota
dealer immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become
temporarily unavailable, corrective action may
be necessary.
Follow the instructions displayed on the
multi-information display. ( P.338, 552)
If the PCS (Pre-Collision System) or VSC (Vehi-
cle Stability Control) system is disabled, the
PCS warning light will illuminate.
P.350
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LTA (Lane Trac-
ing Assist)
Follow the instructions displayed on the
multi-information display. ( P.362)
Warning lightDetails/Actions
(If equipped)
When a buzzer sounds:
Indicates a malfunction in the Intuitive parking
assist function
Have the vehicle inspected by your Toyota
dealer immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavail-
able, possibly due to a sensor being dirty or cov-
ered with ice, etc.
Follow the instructions displayed on the
multi-information display. ( P.390, 552)
Page 543 of 662

5458-2. Steps to take in an emergency
8
When trouble arises
■PKSB OFF indicator (warning buzzer)
■BSM OFF indicator (warning buzzer)
■RCTA OFF indicator* (warning buzzer)
*: This light illuminat es on the multi-information display.
Warning lightDetails/Actions
(If equipped)
If “Parking Support Brake Malfunction Visit Your
Dealer” is displayed on the multi-information
display:
Indicates a malfunctio n in the PKSB (Parking
Support Brake) system
Have the vehicle inspected by your Toyota
dealer immediately.
If “Parking Assist Unavailable” is displayed on
the multi-information display:
Indicates that the system is temporarily unavail-
able, possibly due to a sensor being dirty or cov-
ered with ice, etc.
Follow the instructions displayed on the
multi-information display. ( P.399, 552)
Warning lightDetails/Actions
Indicates a malfunction in the BSM (Blind Spot
Monitor) function
Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the rear bumper around the radar
sensor is covered with dirt, etc. ( P.380)
Follow the instructions displayed on the
multi-information display. ( P.380, 552)
Warning lightDetails/Actions
Indicates a malfunctio n in the RCTA (Rear
Cross Traffic Alert) function
Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the rear bumper around the radar
sensor is covered with dirt, etc. ( P.380)
Follow the instructions displayed on the
multi-information display. ( P.380, 552)
Page 544 of 662

5468-2. Steps to take in an emergency
■Slip indicator light
■Inappropriate pedal operation warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Brake hold operated indicator (warning buzzer)
Warning lightDetails/Actions
Indicates a malfunction in:
The VSC/Trailer Sway Control system;
The TRAC system;
The Trail Mode function; or
The hill-start assist control system
Have the vehicle inspected by your Toyota
dealer immediately.
Warning lightDetails/Actions
When a buzzer sounds:
Brake Override System is malfunctioning
Drive-Start Control is malfunctioning
Drive-Start Control is operating
Follow the instructions displayed on the
multi-information display.
When a buzzer does not sound:
Brake Override System is operating.
Release the accelerator pedal and
depress the brake pedal.
Warning lightDetails/Actions
(Flashes)
Indicates a malfunction in the brake hold system
Have the vehicle inspected by your Toyota
dealer immediately.
Page 545 of 662

5478-2. Steps to take in an emergency
8
When trouble arises
■Parking brake indicator
■Tire pressure warning light*
*: This light illuminat es on the multi-information display.
■Low fuel level warning light
Warning lightDetails/Actions
(U.S.A.)
(Flashes)
(Canada)
(Flashes)
It is possible that the par king brake is not fully
engaged or released
Operate the parking brake switch once
again.
This light comes on when the parking brake is
not released. If the light t urns off after the park-
ing brake is fully released, the system is operat-
ing normally.
Warning lightDetails/Actions
(If equipped)
When the light comes on after blinking for
approximately 1 minute (a buzzer does not
sound):
Malfunction in the tire pressure warning system
Have the system checked by your Toyota
dealer.
When the light comes on (a buzzer sounds):
Low tire inflation pressu re from natural causes
Adjust the tire inflation pressure to the
specified cold tire inflation pressure level.
( P.585)
Low tire inflation pre ssure from flat tire
Immediately stop the vehicle in a safe
place.
Handling method ( P.549)
Warning lightDetails/Actions
Indicates that remaining fuel is approximately
2.2 gal. (8.3 L, 1.8 Imp. gal.) or less
Refuel the vehicle.
Page 546 of 662

5488-2. Steps to take in an emergency
■Driver’s and front passenger’s seat belt reminder light (warn-
ing buzzer*)
*: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the drive r that his or
her seat belt is not fastened. Onc e the power switch is turned to ON, the
buzzer sounds. If the seat belt is still unfastened, the buzzer sounds inter-
mittently for a certain period o f time after the vehicle reaches a certain
speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. If the sea t belt is
unfastened, the buzzer sounds int ermittently for a certain period of time
after the vehicle reaches a certain speed.
■Rear passengers’ seat belt reminder lights*1, 2 (warning
buzzer*3)
*1: This light illuminates on the multi-information display.
*2: Regardless of whether or not a rear passenger is present, this light will
also illuminate for a certain period of tim e after the rear doo r is opened
and closed.
*3: Rear passengers’ seat belt warning buzzer: The rear passengers’ seat belt w arning buzzer sounds to alert the rear
passengers that his o r her seat belt is not fastened. If the se at belt is
unfastened, the buzzer sounds intermittently for a certain peri od of time,
after the seat belt is fastened and unfastened and the vehicle reaches a
certain speed.
Warning lightDetails/Actions
Warns the driver and/or front passenger to fas-
ten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied,
the front passenger’s seat belt also needs
to be fastened to m ake the warning light
(warning buzzer) turn off.
Warning lightDetails/Actions
(if equipped)
Warns the rear passengers to fasten their seat
belts
Fasten the seat belt.