belt Lexus GX460 2017 Repair Manual

5227-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
(Flashes)
Low speed four-wheel drive indicator lightIndicates a malfunction in the four-wheel drive system if the light
continues flashing. ( →P. 3 4 2 )
→ Have the vehicle inspected by your Lexus dealer immediately.
(Flashes)
Center differential lock indicator light
Indicates a malfunction in the four-wheel drive system if the light
continues flashing. ( →P. 3 4 2 )
→ Have the vehicle inspected by your Lexus dealer immediately.
Open door warning light (warning buzzer)*1
Indicates that a door or the glass hatch is not fully closed
→ Check that all the doors and the glass hatch are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 3.5 gal. (13.1 L, 2.9
Imp. gal.) or less
→ Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*2
Warns the driver and/or front passenger to fasten 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 make the warning light
(warning buzzer) turn off.
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. 5 2 8
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes (→ P. 5 2 4 )
•Flat tire ( →P. 5 4 2 )
→ Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by your Lexus dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
→ Have the system checked by your Lexus dealer.
Warning lightWarning light/Details/Actions
GX460_OM_OM60F68U_(U).book Page 522 Wednesday, June 8, 2016 6:37 PM

5237-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
7
When trouble arises
*1: Open door warning buzzer: → P. 5 3 0
*2: Seat belt reminders:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfast ened after 30 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or
her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 30 seconds, the buzzer will
sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors, side
and curtain shield airbag sensors, rear side and curtain shield airbag sensors, floor sen-
sor, driver’s seat belt buckle switch, front passenger occupant classification system (ECU
and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front pas-
senger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags, intercon-
necting wiring and power sources. ( →P. 3 6 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound 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 passenger, and the warn-
ing light may not operate properly.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon as
possible.
GX460_OM_OM60F68U_(U).book Page 523 Wednesday, June 8, 2016 6:37 PM

5247-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
■If the low speed four-wheel drive indicator light or the center differential lock indicator
light blinks
Take the specified steps. (→P. 3 4 4 )
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such as natural air leaks
or tire inflation pressure changes caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The tire pressure warning light will turn on if the tire inflation pressure of the spare tire is
low. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
→ P. 4 8 0
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mode, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features: →P. 5 9 4 )
GX460_OM_OM60F68U_(U).book Page 524 Wednesday, June 8, 2016 6:37 PM

5637-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
7
When trouble arises
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas
that may be emitted from the battery:
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any other than the intended terminal.
●Do not allow the + and - clamps of the jumper cables to come into contact with each
other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the battery.
■Battery precautions
The battery contains poisonous and corrosiv e acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when handling
the battery:
●When working with the battery, always wear safety glasses and take care not to allow
any battery fluids (acid) to come into contact with skin, clothing or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other bat-
tery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in the
cooling fans or belt.
GX460_OM_OM60F68U_(U).book Page 563 Wednesday, June 8, 2016 6:37 PM

5667-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
CAUTION
■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. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury.
●Do not loosen the radiator cap or the coolant reservoir cap while the engine and radi-
ator are hot. High temperature steam or coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cool ed down sufficiently. Adding cool coolant
to a hot engine too quickly can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
GX460_OM_OM60F68U_(U).book Page 566 Wednesday, June 8, 2016 6:37 PM

572
GX 460 _O M_ OM6 0F 6 8U _(U )8-1. Specifications
■Engine number
The engine number is stamped on the engine block as shown.
*: The engine oil capacity is a reference quantity to be used when changing the engine
oil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level
on the dipstick.
Engine
Model4.6 L 8-cylinder (1UR-FE)
Ty p e8-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70 × 3.27 in. (94.0 × 83.0 mm)
Displacement281.2 cu.in. (4608 cm3)
Va l v e c l e a r a n c eAutomatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane rating91 (Research Octane Number 96) or higher
Fuel tank capacity (Reference)23.0 gal. (87 L, 19.1 Imp.gal.)
Lubrication system
Oil capacity
(Drain and refill — reference*)
With filter
Without filter8.2 qt. (7.8 L, 6.9 Imp.qt.)
7.8 qt. (7.4 L, 6.5 Imp.qt.)
GX460_OM_OM60F68U_(U).book Page 572 Wednesday, June 8, 2016 6:37 PM

586
GX 460 _O M_ OM6 0F 6 8U _(U )8-1. Specifications
Bead
Sidewall
Shoulder
Tr e a d
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Tire section names
1
2
3
4
5
6
7
8
9
10
11
GX460_OM_OM60F68U_(U).book Page 586 Wednesday, June 8, 2016 6:37 PM

GX 460 _O M_ OM6 0F 6 8U _(U )
6038-2. Customization
8
Vehicle specifications
■Seat belt reminder buzzer (→P. 5 2 0 )
■Po w e r w i n d o w s (→P. 150) and moon roof (→P. 1 5 3 )
FunctionDefault settingCustomized setting
Speed-linked seat belt
reminder functionOnOff——O
123
FunctionDefault settingCustomized setting
Mechanical key linked
operation (close)OffOn——O
Mechanical key linked
operation (open)OffOn——O
Wireless remote control
linked operation (open)OffOn——O
Wireless remote control
linked operation signal
(buzzer)OnOff——O
123
GX460_OM_OM60F68U_(U).book Page 603 Wednesday, June 8, 2016 6:37 PM

607
GX 460 _O M_ OM6 0F 6 8U _(U )
9For owners
Reporting safety defects for U.S. owners .................................... 608
Seat belt instructions for Canadian owners
(in French) ..............................................609
SRS airbag instructions for Canadian owners
(in French) ................................................. 611
Headlight aim instructions for Canadian owners
(in French) ................................................619
GX460_OM_OM60F68U_(U).book Page 607 Wednesday, June 8, 2016 6:37 PM

609
GX 460 _O M_ OM6 0F 6 8U _(U )
9
For owners
Seat belt instructions for Canadian owners
(in French)
●Tirez sur la ceinture épaulière
jusqu’à ce qu’elle recouvre entière-
ment l’épaule; elle ne doit cependant
pas toucher le cou ni glisser de
l’épaule.
●Placez la ceinture abdominale le
plus bas possible sur les hanches.
●Réglez la position du dossier. Tenez-
vous assis bien au fond du siège, le
dos droit.
●Ne vrillez pas la ceinture de sécurité.
The following is a French explanation of seat belt instructions extracted from
the seat belt section in this manual.See the seat belt section for more detailed seat belt instructions in English.
Utilisation adéquate des ceintures de sécurité
GX460_OM_OM60F68U_(U).book Page 609 Wednesday, June 8, 2016 6:37 PM