2010 Lexus GX460 transmission

373
2-5. Driving information
2
When driving
GX460_CANADA (OM60F29U)
■Break-in schedule
Lexus recommends that you do not use a new vehicle or a vehicle with any new
power train components (engine, transmission, differential, wheel bearings, etc.) to
tow a trailer for the first 500 miles (800 km) of driving.
■Maintenance
●If you tow a trailer, your vehicle will require more frequent maintenance due to
the additional load. (See “Warranty and Services Guide”, “Owner’s Manual
Supplement” or “Scheduled Maintenance”.)
●Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.
CAUTION
■Trailer towing precautions
●Follow all the instructions described in this section. Failure to do so could cause
an accident resulting in death or serious injury.
●Exceeding the towing capacity, GVWR, GCWR and GAWR can cause an acci-
dent resulting in death or serious personal injuries.
GX460_CANADA.book Page 373 Thursday, February 4, 2010 11:54 AM

378
2-5. Driving information
GX460_CANADA (OM60F29U)●
Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before making
turns.
● Note that when making a turn, the trailer 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 adversely 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 gradually, and steer straight ahead.
Never increase speed. If you make no extreme correction with the
steering or brakes, your vehicle and trailer will stabilize.
● Take care when passing other vehicles. 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 engine braking and electrical charging
performance, do not use overdrive. Transmission shift range position
must be in 5, in S mode.
● 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 engine coolant temperature gauge indicates
overheating, immediately turn off the air conditioning (if in use), pull
your vehicle off the road and stop in a safe spot. (
→P. 74 4 )
GX460_CANADA.book Page 378 Thursday, February 4, 2010 11:54 AM

379
2-5. Driving information
2
When driving
GX460_CANADA (OM60F29U)●
Always place wheel blocks under both the vehicle and the trailer
wheels when parking. Apply the parking brake firmly, and put the
transmission in P. Avoid parking on a slope, but if unavoidable, do so
only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle and
trailer wheels.
When the wheel blocks are in place, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into P and turn off the engine.
● When restarting after parking on a slope:
With the transmission in the P position, start the engine. Be sure
to keep the brake pedal pressed.
Shift into 3, 2, L, or R position (if reversing).
Release the parking brake and brake pedal, and slowly pull or
back away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.
STEP1STEP1
STEP2STEP2
STEP1STEP3STEP3
STEP1STEP4STEP4
STEP1STEP5STEP5STEP5
STEP1STEP1
STEP2STEP2
STEP1STEP3STEP3
STEP1STEP4STEP4
GX460_CANADA.book Page 379 Thursday, February 4, 2010 11:54 AM

598
4-2. Maintenance
GX460_CANADA (OM60F29U)
Vehicle interior
ItemsCheck points
Accelerator pedal
• The accelerator pedal should move smoothly (without uneven pedal
effort or catching).
Automatic transmission “Park”
mechanism• When parked on a slope and the shift lever is in P, is the vehicle
securely stopped?
Brake pedal
• Does the brake pedal move
smoothly?
• Does the brake pedal have appro- priate clearance from the floor?
• Does the brake pedal have the cor- rect amount of free play?
Brakes
• The vehicle should not pull to one side when the brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel
spongy.
• The brake pedal should not get too
close to the floor when the brakes
are applied.
GX460_CANADA.book Page 598 Thursday, February 4, 2010 11:54 AM

604
4-3. Do-it-yourself maintenance
GX460_CANADA (OM60F29U)
ItemsParts and tools
Fuses(→ P. 6 4 5 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 6 5 8 )• Phillips-head screwdriver
Light bulbs (→ P. 660)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level (→ P. 6 2 0 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( →P. 6 1 7 )
Tire inflation pressure ( →P. 6 3 4 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 6 2 6 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
GX460_CANADA.book Page 604 Thursday, February 4, 2010 11:54 AM

621
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_CANADA (OM60F29U)■
Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.
Fluid typeAutomatic transmission fluid DEXRON® II or III
ItemsRag or paper, clean funnel (only for adding fluid)
CAUTION
■When checking the reservoir
Take care as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or dam-
age.
STEP1
STEP2
STEP3
STEP4
STEP5
GX460_CANADA.book Page 621 Thursday, February 4, 2010 11:54 AM

5
When trouble arises
675
5-1. Essential information
GX460_CANADA (OM60F29U)
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
● The engine is running but the vehicle will not move.
● The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing se rvice, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towing, and abide by all state/provincial
and local laws.
The wheels and axle on the ground must be in good condition.
If they are damaged, use a towing dolly or flat bed truck.
GX460_CANADA.book Page 675 Thursday, February 4, 2010 11:54 AM

680
5-1. Essential information
GX460_CANADA (OM60F29U)
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 the 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
opposite end of the raised vehicle. Without adequate clearance, the vehicle could
be damaged while being towed.
■To prevent body damage when towing 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 emer-
gency towing
Never tow a vehicle from the rear with four wheels on the ground. This may cause
serious damage to the transmission.
Do not use the rear emergency towing hook.
sec_05_01.fm Page 680 Thursday, February 4, 2010 5:37 PM