check engine TOYOTA HIGHLANDER 2017 XU50 / 3.G Workshop Manual

6378-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when
stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(→P. 549)
■ Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( →P. 222)
■ When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features →P. 680)
● Check if battery-saving mode is set. If it is set, cancel the function.
(→P. 143)
WARNING
■ When using the mechanical key an d operating the power windows or
moon roof
Operate the power window or moon roof after checking to make sure that
there is no possibility of any passenger having any of their body parts
caught in the window or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for
children and other passengers to get caught in the power window or moon
roof.
3

6458-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fans oper ate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking the
fan sound and air flow. If it is difficult to check these, turn the air condition-
ing system on and off repeatedly. (The fans may not operate in freezing
temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fans are operating:
Have the vehicle in spected at the nearest Toyota dealer.
5
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts.
● Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
6
7

6549-1. Specifications
HIGHLANDER_U (OM0E017U)
*: The engine oil capacity is a reference quantity to be used when changingthe engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is us ed in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice
for good fuel economy and
good starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Lubrication system
Oil capacity
(Drain and refill ⎯ reference
*)
With filter
2.7 L 4-cylinder (1AR-FE) engine
4.6 qt. (4.4 L, 3.9 Imp. qt.)
3.5 L V6 (2GR-FKS) engine
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Without filter2.7 L 4-cylinder (1AR-FE) engine
4.2 qt. (4.0 L, 3.5 Imp. qt.)
3.5 L V6 (2GR-FKS) engine
5.6 qt. (5.3 L, 4.7 Imp. qt.)
Outside temperature

6579-1. Specifications
9
Vehicle specifications
HIGHLANDER_U (OM0E017U)
*: The fluid capacity is a reference quantity. If replacement is necessary, contact your Toyota dealer.
Electrical system
Battery
Open voltage at 68 °F
(20° C): 12.3 V or More
If the voltage is lower than the standard value,
charge the battery.
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A max.
Automatic transaxle
Fluid capacity*
2.7 L 4-cylinder (1AR-FE) engine
6.9 qt. (6.5 L, 5.7 Imp. qt.)
3.5 L V6 (2GR-FKS) engine
2WD models:
8.0 qt. (7.58 L, 6.7 Imp. qt.)
AWD models:
8.0 qt. (7.58 L, 6.7 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■ Automatic transmission fluid type
Using automatic transmission fluid other than “Toyota Genuine ATF WS”
may cause deterioration in shift quality, locking up of your transmission
accompanied by vibration, and ultimately damage the automatic transmis-
sion of your vehicle.

708
HIGHLANDER_U (OM0E017U)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your keys or mechanical keys, new genuine keys or mechanical
keys can be made by your Toyota dealer. ( →P. 1 1 1 )
●If you lose your keys or electronic keys, the risk of vehicle theft increases
significantly. Contact your Toyota dealer immediately. (→P. 114)
●Is the key battery weak or depleted? ( →P. 549)
●Vehicles with a smart key system:
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( →P. 222)
●Vehicles with a smart key system:
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. ( →P. 111, 144)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (→P. 120)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

719Alphabetical index
HIGHLANDER_U (OM0E017U)
Engine....................................... 653“ACC” position ...................... 218
ACCESSORY mode ............. 222
Compartment ........................ 519
Engine switch................ 218, 221
Hood ..................................... 516
How to start the engine......................... 218, 221
Identification number ............ 652
If the engine will not start ...... 633
Ignition switch (engine switch) ........... 218, 221
Overheating .......................... 644
Engine coolant ......................... 524
Capacity ................................ 656
Checking ............................... 524
Preparing and checking before winter....................... 339
Engine coolant temperature gauge........................................ 92
Engine immobilizer system ...... 80
Engine oil ................................. 521 Capacity ................................ 654
Checking ............................... 521
Oil pressure warning
message ............................. 598
Preparing and checking
before winter....................... 339
Engine switch .................. 218, 221
Enhanced VSC ......................... 331 Entune Audio ........................... 351
Audio input............................ 355
AUX port/
USB port............................. 355
CD player.............................. 369
iPod ...................................... 375
MP3/WMA disc ..................... 369
Optimal use .......................... 366
Portable music player ........... 383
Radio .................................... 367
Steering wheel audio
switch ................................. 354
USB memory ........................ 379
Entune Audio Plus
*
Entune Premium Audio*
EPS (Electric Power Steering) ..... 332
Function ................................ 332
Warning light......................... 582
Event data recorder (EDR)........ 10
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”

729Alphabetical index
HIGHLANDER_U (OM0E017U)
Tachometer ................................ 92
Tail lights .................................. 235Light switch ........................... 235
Replacing light bulbs............. 556
Talk switch ............................... 429
Telephone switches ................ 410
Theft deterrent system Alarm ...................................... 82
Engine immobilizer system ..... 80
Tire inflation pressure ............. 542 Maintenance data ................. 660
Warning light ......................... 584
Tire information ....................... 667 Glossary................................ 674
Size ....................................... 670
Tire identification number ..... 669
Uniform Tire Quality
Grading............................... 672
Tire pressure warning system .................................... 533
Function ................................ 533
Initializing .............................. 533
Installing tire pressure warning valves and
transmitters......................... 533
Registering ID codes ............ 535
Tire pressure warning reset switch ................................. 534
Warning light ......................... 584 Tires .......................................... 531
Chains .................................. 341
Checking............................... 531
If you have a flat tire ............. 608
Inflation pressure .................. 660
Information............................ 667
Replacing.............................. 608
Rotating tires ........................ 532
Size....................................... 660
Snow tires ............................. 342
Spare tire .............................. 608
Tire pressure warning
system .......... ...................... 533
Warning light......................... 584
Tools ......................................... 609
Top tether strap ......................... 75
Towing Dinghy towing ....................... 217
Emergency towing ................ 575
Trailer towing ........................ 201
Toyota Safety Sense P ............ 254 Automatic High Beam ........... 239
Dynamic radar cruise control ................................ 285
LDA (Lane Departure Alert
with steering control) .......... 275
PCS (Pre-Collision System) ....... 261
TRAC (Traction Control) ......... 331
Traction Control
(TRAC).................................... 331
T
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S
MANUAL”