2008 TOYOTA HIGHLANDER HYBRID sensor

451
4-3. Do-it-yourself maintenance
4
Maintenance and care
Wheels
■When replacing wheels
The wheels of your Toyota are equipped with sensors that allow the tire
pressure warning system to provide advanced warning in the event of a
loss in tire inflation pressure. Whenever wheels are replaced, the tire
inflation pressure warning valve & transmitter must be switched over
from the old wheels. (P. 441)
If a wheel is bent, cracked or heavily corroded, it should be
replaced.
Otherwise, the tire may separate from the wheel or cause loss of
handling control.
■ Wheel selection
When replacing wheels, care should be taken to ensure that
they are equivalent to those removed in load capacity, diameter,
rim width, and offset.
Replacement wheels are available at your Toyota dealer.
Toyota does not recommend using:
●Wheels of different sizes or types
● Used wheels
● Bent wheels that have been straightened
■ Aluminum wheel precautions
●Use only Toyota wheel nuts and wrenches designed for use
with your aluminum wheels.
● When rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
● Be careful not to damage the aluminum wheels when using
tire chains.
● Use only Toyota genuine balance weights or equivalent and a
plastic or rubber hammer when balancing your wheels.

464 4-3. Do-it-yourself maintenance
24 ECU-B10 ASteering sensor, gauges and
meters, air conditioning system,
main body ECU, wireless remote
control, smart key system, power
back door, on-board diagnosis sys-
tem
25 DOME 10 AVanity lights, personal lights, inte-
rior light, gauges and meters, door
courtesy lights, power back door
26 AMP 15 A Audio system
27 TOWING 30 A Trailer lights
28 IG2 25 A INJ NO.1, INJ NO.2
29 STR LOCK 20 A Steering lock system
30 IGCT 30 AIGCT No.2, IGCT No.3, INV-W/P,
EFI NO.3
31 HAZ 15 A Turn signal lights
32 ABS NO.3 15 AElectronically controlled brake sys-
tem
33 ABS NO.2 10 AElectronically controlled brake sys-
tem
34 ABS NO.1 10 A Capacitor
35 OIL PMP 10 A Transaxle fluid cooling system
36 BATT FAN 15 A Hybrid system
37 G/H 10 AGlass hatch, multiplex communica-
tion system
38 DC/DC-S 10 A Hybrid system
39 AM2 7.5 A Multiplex communication system
40 H-LP LH 15 A Left-hand headlight (high beam)
41 H-LP RH 15 A Right-hand headlight (high beam)
42 H-LP LL 15 A Left-hand headlight (low beam)
FuseAmpereCircuit

465
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B (if equipped)
43 H-LP RL
15 A Right-hand headlight (low beam)
44 HORN 10 A Horn
45 EFI NO.1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, smart key system
46 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, electronic throttle control
system
47 A/F 20 A Air fuel ratio sensor
48 S-HORN 7.5 A Horn
FuseAmpereCircuit
1 INV-W/P 15 A Hybrid system
2 IGCT NO.2 7.5 A Hybrid system
3 A/C-D 10 A Air conditioning system
FuseAmpereCircuit

5
When trouble arises
489
5-1. Essential information
Event data recorder
In a crash or a near car crash eventThe SRS airbag sensor assembly contains the EDR. In a crash or a
near car crash event, this device may record some or all of the follow-
ing information:
● Gasoline engine speed
● Whether the brake pedal was depressed or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver's seat position
● Front passenger's occupant classification
● SRS airbag deployment data
● SRS airbag system diagnostic data
If your vehicles is equipped with a vehicle stability control (VSC) system
The VSC Electronic Control Unit (ECU) may contain another EDR. In
case the VSC or Brake Assist syst em is activated, or the lateral
acceleration is beyond a certain value, this device may record some
or all of the following information:
Your vehicle has computers that monitor and control certain aspects
of your vehicle. These computers assi st in driving and maintaining
optimal vehicle performance.
Besides storing data useful for tr oubleshooting, there is an event
data recorder (EDR) that records data in a crash or a near car
crash event.

5
When trouble arises
495
5-2. Steps to take in an emergency
*1: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
*2: Driver's and front passenger’s seat belt reminders:The driver’s and front passenger’s seat belt reminders sound to alert the
driver and front passenger that his or her seat belt is not fastened. These
buzzers sound for 10 seconds after the vehicle has reached a speed of at
least 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
*3: Vehicles without navigation system
*4: Vehicles with navigation system
Master warning light A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning system
has detected a malfunc-
tion. P. 500
■ Open moon roof reminder buzzer
The buzzer indicates that the moon roof is not fully closed with the hybrid
system off and the driver’s door opened.
■ 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.
■ Changing the engine oil (U.S.A. only)
Make sure to reset the oil change system. ( P. 429)
Warning lightWarning light/DetailsCorrection procedure

560 6-2. Customization
Wireless
remote con-
trol
(
P. 65)Wireless remote control ON OFF
Unlocking operation
Driver's door
unlocked in one step, all doors
unlocked in two steps All doors
unlocked in one step
Automatic door lock
function to be activated
if door is not opened
after being unlocked ON OFF
Time elapsed before
automatic door lock
function is activated if
door is not opened after
being unlocked 60 seconds
30 seconds
120 seconds
Operation signal
(Emergency flashers) ON OFF
Door lock buzzer ON OFF
Operation signal
(Buzzer) ON OFF
Panic function ON OFF
Automatic
light control
system
( P. 200) Light sensor sensitivity Level 3 Level 1 to 5
Time elapsed before
headlights automati-
cally turn off after doors
are closed
30 seconds0 second
60 seconds
90 seconds
Lights
(
P. 200) Daytime running light
system (U.S.A. only)
ON OFF
Alarm sys-
tem
(
P. 124) Time elapsed before
the alarm is set
14 seconds 30 seconds
ItemFunctionDefault settingCustomized
setting