2017 TOYOTA HIGHLANDER HYBRID engine

5417-3. Do-it-yourself maintenance
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Maintenance and care
HIGHLANDER_HV_U (OM48F12U)
Turn the power switch off.
Open the fuse box cover.
Engine compartment (type A fuse box)
Push the tab in and lift the lid off.
Engine compartment (type B fuse box)
Push the tab in and lift the lid off.
Engine compartment (type C fuse box)
Push the tab in and lift the lid off.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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5668-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
●Fluid leaks under the vehicle.
(Water dripping from the air co nditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points higher
than normal.
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spon gy feeling, pedal almost touches
the floor
If you think something is wrong
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5678-2. Steps to take in an emergency
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When trouble arises
HIGHLANDER_HV_U (OM48F12U)
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light in red (warning buzzer)*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
→ Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Brake system warning light in yellow
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
→ Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
→ Have the vehicle inspected by your Toyota dealer
immediately.

5828-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
Indicates that the LDA (Lane Departure Alert with
steering control) system has determined that the
driver does not have their hands on the steering
wheel while the steering control function is on If the system continues to determine that the
driver does not have his hands on the steering
wheel, comes on and a buzzer also
sounds.
→ Firmly hold the steering wheel.
Indicates that the engine coolant temperature is
too high
A buzzer also sounds.
→ P. 631
Indicates a malfunction in the vehicle’s charging
system
→Immediately stop the vehicle in a safe place
and contact your Toyota dealer. Continuing
to drive the vehicle may be dangerous.
Indicates that the radar sensor is dirty or covered
with ice A buzzer also sounds.
→ Clean the sensor.
Indicates that the dynamic radar cruise control
system cannot be used temporarily due to bad
weather
A buzzer also sounds.
→ Use the dynamic radar cruise control sys-
tem when it becomes available again.
Warning messageDetails/Actions

5858-2. Steps to take in an emergency
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When trouble arises
HIGHLANDER_HV_U (OM48F12U)
Indicates abnormal engine oil pressureA buzzer also sounds.
→ Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates a malfunction in the AWD system
A buzzer also sounds.
→ Have the vehicle inspect ed by your Toyota
dealer.
Indicates that the LDA (Lane Departure Alert with
steering control) system cannot be used as the
vehicle speed is lower than approximately 32
mph (50 km/h)
→ Drive the vehicle at approximately 32 mph
(50 km/h) or more.
Indicates that LDA (Lane Departure Alert with
steering control) system cannot be used due to
the vehicle speed being too high
→Slow down.
Indicates that the hybrid system was stopped
while driving
A buzzer also sounds.
→ Operate the steering wheel with more force
than usual.
Warning messageDetails/Actions

6188-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)■
If you have a flat front tire on a road covered with snow or ice (vehi-
cles with a compact spare tire)
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and fit
tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
WARNING
■When using the compact spare tire (vehicles with a compact spare
tire)
●Remember that the compact spare tire provided is specifically
designed for use with your vehicle. Do not use your compact spare tire
on another vehicle.
●Do not use more than one compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possi-
ble.
●Avoid sudden acceleration, abrupt steering, sudden braking and shift-
ing operations that cause sudden engine braking.
■When the compact spare tire is attached (vehicles with a compact
spare tire)
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Fail-
ure to observe this precaution may lead to an accident causing death or
serious injury.
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• ABS & Brake assist
•VDIM
•TRAC
• Dynamic radar cruise control
• Pre-Collision System
• EPS • Automatic High Beam
• LDA (Lane Departure Alert with
steering control)
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)

6278-2. Steps to take in an emergency
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When trouble arises
HIGHLANDER_HV_U (OM48F12U)
Remove the engine cover.
Connect the jumper cables according to the following procedure:Connect a positive jumper cabl e clamp to the exclusive jump
starting terminal on your vehicle.
Connect the clamp on the other e nd of the positive cable to the
positive (+) battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery termi-
nal on the second vehicle.
Connect the clamp at the other end of the negative cable to a
solid, stationary, unpainted metallic point away from the exclusive
jump starting terminal and any moving parts, as shown in the
illustration.
Start the engine of the second v ehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.4
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6288-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
Open and close any of the doors of your vehicle with the power
switch off.
Maintain the engine speed of t he second vehicle and start the
hybrid system of your vehicle by turning the power switch to ON
mode.
Make sure the “READY” indicato r comes on. If the indicator does
not come on, contact your Toyota dealer.
Once the hybrid system has start ed, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, ha ve the vehicle inspected at your
Toyota dealer as soon as possible.
■ Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ When recharging or repl acing the 12-volt battery
● In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12-volt battery.
● Vehicle with power back door: The power back door must be initialized.
(→P. 677)
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
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