2008 Lexus GX470 coolant temperature

126
2-2. Instrument cluster
Gauges and meters
The units used on the speedometer may differ depending on the target
region.

The following gauges and meters illuminate when the engine switch is
in the “ON” position.
Fuel gauge
Displays the quantity of fuel remaining in the tank.
Speedometer
Displays the vehicle speed.
Tachometer
Displays the engine speed in revolutions per minute.
Engine coolant temperature gauge
Displays the engine coolant temperature.
Odometer/trip meter and trip meter reset knob
Switches between odometer and trip meter displays. Pushing and holding
the knob will reset the trip meter when the trip meter is being displayed.

128
2-2. Instrument cluster
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi-
cates the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is in the
red zone (“H”). In this case, immediatel y stop the vehicle in a safe place, and
check the engine after it has cooled completely. ( P. 4 0 8 )

188
2-5. Driving information
●Note that when making a turn, the tr ailer wheels will be closer than the
vehicle wheels to the inside of the turn. Compensate by making a
larger than normal turning radius.
● Crosswinds and rough roads will ad versely affect handling of your
vehicle and trailer, causing sway. Periodically check the rear to prepare
for being passed by large trucks or buses, which may cause your vehi-
cle and trailer to sway. If swaying occurs, firmly grip the steering wheel,
reduce speed immediately but grad ually, and steer straight ahead.
Never increase speed. If you make no extreme correction with the
steering or brakes, your vehi cle and trailer will stabilize.
● Take care when passing other vehi cles. Passing requires considerable
distance. After passing a vehicle, do not forget the length of your
trailer, and be sure you have plenty of room before changing lanes.
● In order to maintain efficient eng ine braking and electrical charging
performance, do not use overdrive. Transmission shift range position
must be in “4”.
● Due to the added load of the trailer, your vehicle’s engine may overheat
on hot days (at temperatures over 85°F [30°C] when driving up a
long or steep grade. If the eng ine coolant temperature gauge indicates
overheating, immediately turn off th e air conditioning (if in use), pull
your vehicle off the road and stop in a safe spot. (
P. 4 0 8 )

408
5-2. Steps to take in an emergency
If your vehicle overheats
If the engine overheats:
Stop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Turn off the engine and carefully lift the hood.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the engine coolant temperature gauge begins to
fall and then stop the engine.
If the fan is not operating: Stop the engine immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
coolant level and inspect the
radiator for any leaks.STEP1
STEP2
STEP3
STEP4

5
When trouble arises
409
5-2. Steps to take in an emergency
■Overheating
In the following situations, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when in specting under the hood of your vehicle
●Keep hands and clothing away from the fan and engine drive belt while the
engine is running.
●Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
NOTICE
■When adding coolant
Wait until the engine has cooled down before adding coolant.
When adding coolant, do so slowly. Adding cold coolant to a hot engine too quickly
can cause damage to the engine.
Add coolant if required.
Water can be used as an emer-
gency measure if coolant is
unavailable. ( P. 4 1 6 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5

429
6-1. Specifications
6
Vehicle specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat build up and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil
and coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded
vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

450
Alphabetical index
If the vehicle battery is discharged .......................................405
If you have a flat tire ...........................391
If you lose your keys.........................404
If you think something is wrong ....................................................377
If your vehicle becomes stuck...... 410
If your vehicle needs to be towed ................................................... 372
If your vehicle overheats ............... 408
Engine Compartment ....................................... 321
Engine switch.......................................... 118
Hood........................................................ 320
How to start the engine..................... 118
If the engine will not start........................................................ 402
Overheating........................................ 408
Engine compartment cover ............. 322
Engine coolant temperature gauge....................................................... 126
Engine coolant Capacity ...................................................416
Checking ............................................... 328
Preparing and checking before winter ...................................... 176
Engine immobilizer system.................. 70
Engine oil Capacity ...................................................415
Checking ............................................... 323
Preparing and checking before winter ...................................... 176
Engine oil maintenance data............ 326
Event data recorder ............................ 379 First-aid kit storage belt ..................... 279
Flat key ......................................................... 22
Floor mats .................................................277
Fluid
Brake ....................................................... 330
Power steering ..................................... 331
Washer................................................... 335
Fog lights Switch ........................................................ 137
Wattage ................................................. 420
Foot light .................................................. 256
Front passenger’s seat belt
reminder light .....................................385
Front passenger occupant classification system ............................ 90
Front seats Adjustment ............................................... 34
Driving position memory ..................45
Front turn signal lights Wattage ................................................. 420
Fuel Capacity .................................................. 414
Fuel gauge .............................................. 126
Gas station information ................. 460
Information ............................................. 421
Refueling .................................................... 67
Fuel door ......................................................67
Fuel filler door ............................................67
Fuses .......................................................... 355F

456
What to do if...
What to do if...
A tire puncturesP. 3 9 1If you have a flat tire
The engine does not start
P. 7 0Engine immobilizer system
P. 4 0 2If the engine will not start
P. 4 0 5If the battery is discharged
The shift lever cannot be
moved outP. 4 0 3If the shift lever cannot be shifted
from “P”
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 4 0 8If your vehicle overheats
The key is lostP. 4 0 4If you lose your keys
The battery is dischargedP. 4 0 5If the vehicle has a discharged battery
The doors cannot be lockedP. 2 6Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 4 1 0If the vehicle becomes stuck