suspension Lexus GX460 2014 Using the air conditioning system and defogger / LEXUS 2014 GX460 (OM60K80U) Owner's Manual

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GX460_OM_OM60K80U_(U)4-5. Using the driving support systems
■The pre-collision system is operational when
●Pre-collision seat belts (situation 1):
• Vehicle speed is greater
than about 4 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 19 mph (30 km/h).
• The front occupants are wearing a seat belt.
●Pre-collision seat belts (situation 2):
• Vehicle speed is greater than about 19 mph (30 km/h).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
●Pre-collision brake assist:
• Vehicle speed is greater than about 19 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 19 mph (30 km/h).
• The brake pedal is depressed.
●Pre-collision braking:
• The pre-collision braking off switch is not pressed.
• Vehicle speed is greater th an about 10 mph (15 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running
ahead of you is greater than about 10 mph (15 km/h).
●AVS (Adaptive Variable Suspension System) control (if equipped):
• Vehicle speed is greater than about 4 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 19 mph (30 km/h).
●Pre-collision alert braking (vehicles with driver monitor system):
• The system determines that th e driver is not facing forward.
• The speed at which your vehicle is approaching the vehicle running ahead of you is greater than about 25 mph (40 km/h).
• Vehicle speed is greater than about 25 mph (40 km/h).
• The pre-collision braking off switch is not pressed.
• The steering is not being turned.
■Situations in which the pre-collision system does not function properly
The system may not function effectively in situations such as the following:
●On roads with sharp bends or uneven surfaces
●If a vehicle suddenly moves in front of your vehicle, such as at an intersection
●If a vehicle suddenly cuts in front of your vehicle, such as when overtaking
●In inclement weather such as heav y rain, fog, snow or sand storms
●When your vehicle is skidding with the VSC system off
●When an extreme change in vehicle height occurs
●When the axis of the radar is out of adjustment

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GX460_OM_OM60K80U_(U)4-6. Driving tips
CAUTION
■Off-road driving precautions
Always observe the following precautions to minimize the risk of death, serious injury
or damage to your vehicle:
●Drive carefully when off the road. Do not ta
ke unnecessary risks by driving in danger-
ous places.
●Do not grip the steering wheel spokes when driving off-road. A bad bump could jerk
the wheel and injure your hands. Keep both hands and especially your thumbs on the
outside of the rim.
●Always check your brakes for effectivenes s immediately after driving in sand, mud,
water or snow.
●After driving through tall grass, mud, rock, sand, rivers, etc., check that there is no
grass, bush, paper, rags, stone, sand, etc. adhering or trapped on the underbody.
Clear off any such matter from the underbody. If the vehicle is used with these materi-
als trapped or adhering to the underb ody, a breakdown or fire could occur.
●When driving off-road or in rugged terrai n, do not drive at excessive speeds, jump,
make sharp turns, strike objects, etc. This may cause loss of control or vehicle rollover
causing death or serious injury. You are also risking expensive damage to your vehi-
cle’s suspension and chassis.

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GX460_OM_OM60K80U_(U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicle body, wheel
wells and underside of the vehicle to remove any dirt and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a chamois.
●For hard-to-remove marks, use car wash soap and rinse thoroughly with
water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle body is cool.
■Automatic car washes
●Fold the mirrors back before washing the vehicle. Start washing from the front of the
vehicle. Make sure to extend the mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm your
vehicle’s paint.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the windows
and the air suspension unit.
●Before using the car wash, check that the fuel
filler door on your vehicle is closed prop-
erly.
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or
abrasive cleaners. Do not use strong or harsh chemical cleaners. Use the same mild
detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving for
long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Bumpers and side moldings
Do not scrub with abrasive cleaners.
Perform the following to protect the ve hicle and maintain it in prime condi-
tion:

5027-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
If your Lexus is transported by a flat bed
truck, it should be tied down at the
locations shown in the illustration.
If you use chains or cables to tie down
your vehicle, the angles shaded in black
must be 45.
Do not overly tighten the tie downs or
the vehicle may be damaged.
■Before emergency towing The engine switch must be in the ACCESSORY mode (engine off) or IGNITION ON
mode (engine running).
Put the four-wheel drive control switch in H4 and push the center differential lock/
unlock switch to unlock the center differential. ( P. 3 3 2 )
Vehicles with the rear height control air suspension: Put the vehicle height in the N
mode and press the height control OFF button to turn off the rear height control air
suspension. ( P. 3 2 7 )
Shift the shift lever in N.
Release the parking brake.
Using a flat bed truck
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5047-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
NOTICE
■To prevent causing serious damage to the transmission and transfer when towing
using a wheel-lift type truck
Never tow this vehicle with any of th e wheels in contact with the ground.
■To avoid serious damage to your vehicle
■To prevent damage to the vehicle when towing using a wheel-lift type truck
When raising the vehicle, ensure adequate ground clearance for towing at the oppo-
site end of the raised vehicle. Without adequate clearance, the vehicle could be dam-
aged while being towed.
■To prevent damage to the vehicle during emergency towing
Observe the following precautions.
●Do not use cables or chains.
●Do not tow the vehicle at a speed higher than 19 mph (30 km/h) and more than a dis-
tance of 50 miles (80 km).
●Do not tow the vehicle from the rear.
●Do not secure elastic towing ropes to the suspension components.
If the vehicle is towed at a speed higher than 19 mph (30 km/h) or for more than
50 miles (80 km), or if the vehicle is towed from the rear, the transmission may be
damaged. In such cases, transport the vehicle using a flat bed truck with all four wheels
raised off the ground.
■To prevent body damage when to wing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent causing serious damage to the transmission and transfer in emergency
towing
Never tow a vehicle from the rear with four wheels on the ground. This may cause seri-
ous damage to the transmission and transfer.
Do not use the rear emergency towing hook.

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GX460_OM_OM60K80U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher than nor-
mal
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
●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, spongy feeling, pedal almost touches the floor
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5087-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
(Flashes)
(If equipped)
Pre-collision system warning light Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the system is
not malfunctioning:
• The light will flash quickly when the system is operating.
( P. 3 5 7 )
• The light will turn on when the pre-collision braking is disabled. ( P. 3 5 8 )
• The light will turn on when the system cannot temporarily be used. ( P. 5 2 0 )
 Have the vehicle inspected by your Lexus dealer immediately.
Slip indicator
Indicates a malfunction in:
• The Multi-terrain Select (if equipped);
• The Crawl Control (if equipped);
• The downhill assist control system (if equipped);
• The VSC (Vehicle Stability Control) system;
• The TRAC (Traction Control) system;
• Active TRAC (Traction Control) system;
• Trailer Sway Control; or
• The hill-start assist control system
The light will flash when any of the above systems other than the
Multi-terrain Select are operating.
 Have the vehicle inspected by your Lexus dealer immediately.
LED headlight warning light
Indicates a malfunction in the LED headlights
The LED headlights will not normally illuminate when there is a
malfunction, however it may be able to illuminate depending on the
nature of the problem.
 Have the vehicle inspected by your Lexus dealer immediately.
(Flashes)
Automatic headlight leveling system warning light
Indicates a malfunction in the au tomatic headlight leveling system
 Have the vehicle inspected by your Lexus dealer immediately.
Kinetic dynamic suspension system warning light
Indicates a malfunction in the kin etic dynamic suspension system.
 Have the vehicle inspected by your Lexus dealer immediately.
(Flashes)
Low speed four-wheel drive indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. ( P. 3 3 2 )
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions

514
GX460_OM_OM60K80U_(U)7-2. Steps to take in an emergency
If a warning message is displayed
Master warning light
The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
instrument cluster.
Multi-information display
Rear height control air suspension
display
If any of the warning lights comes on ag ain after the following actions have been
performed, contact your Lexus dealer.
If a warning is shown on the instrument cluster, stay calm and perform the fol-
lowing actions:
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GX460_OM_OM60K80U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you have a flat tire
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to P.
●Turn off the rear height control air suspension (if equipped). (P. 3 2 7 )
●Stop the engine.
●Turn on the emergency flashers. ( P. 4 9 8 )
Remove the flat tire and replace it with the spare provided.
For details about tires: P. 4 6 4
CAUTION
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat ti re can damage the tire and the wheel beyond
repair, which could result in an accident.
Before jacking up the vehicle

5327-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
Insert the jack handle extension into
the lowering socket.Lower
Raise
Place a rag under the jack handle
extension to protect the rear bumper.
Lower the spare tire completely to
the ground.
If the spare tire becomes caught on th e suspension components, raise the tire,
pull it towards the rear of the vehicle, and begin lowering it again.
Pull out the spare tire and remove
the holding bracket.
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