2008 LEXUS RX400H transmission

195
2-5. Driving information
2
When driving
RX400h_U●
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 hybrid system.
● When restarting after parking on a slope:
With the transmission in the P position, start the hybrid system. Be
sure to keep the brake pedal pressed.
Shift into D or the 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.
CAUTION
■To avoid an accident
●Do not exceed 45 mph (72 km/h) or the posted towing speed limit, whichever is
lower. As instability (swaying) of the towing vehicle-trailer combination increases
as speed increases, exceeding 45 mph (72 km/h) may cause loss of control.
●Slow down and downshift before descending steep or long downhill grades. Do
not make sudden downshifts.
●Avoid holding the brake pedal down too long or applying the brakes too fre-
quently.
This could cause the brakes to overheat and result in reduced braking efficiency.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP4

247
3-3. Using the rear audio system
3
Interior features
RX400h_U
Selecting a disc menu numberSelect
to display the disc menu number search screen.
Select the disc menu number, and press ENT to input it.
Select to return to the previous screen.
■ Display (page 1)
Selecting a disc menu num-
ber
Turning off the menu screen
Displaying to page 2
Turning on the disc menu
Returning to the previous
page screen (with the disc
menu displayed)
Proceeding to the next page
screen (with the disc menu
displayed)
Changing to a multiplex
transmission
■ Display (page 2)
Displaying to page 1
Reversing a screen
Pausing the disc/canceling
the pause
Fast forwarding a screen

307
4-2. Maintenance
4
Maintenance and care
RX400h_U
Vehicle interior
ItemsCheck points
Accelerator pedal• Moves smoothly (without uneven pedal effort or catching)?
Transmission “Park” mechanism
• Can the vehicle be hold securely on an incline with the shift lever in
P?
Brake pedal
• Moves smoothly?
• Does it have appropriate clearance and correct amount of free play?
Brakes
• Not pull to one side when applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints• Move smoothly and lock securely?
Indicators/buzzers•Function properly?
Lights
• Do all the lights come on?
• Headlights aimed correctly? (→ P. 364)
Pa r k i n g b r a ke
• Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts
• Does the seat belt system operate smoothly?
• Are the belts undamaged?
Seats• Do the seat controls operate prop- erly?

360
4-3. Do-it-yourself maintenance
RX400h_U
57RR FOG 7. 5No circuit
58AIR SUS7. 5No circuit
59DOOR NO.225Multiplex communication system
60S/ROOF 30Moon roof
61TA I L10
Front fog lights, instrument cluster
lights, instrument panel lights, front
side marker lights, tail lights, license
plate lights, towing converter
62PA N E L7. 5
Glove box light, instrument cluster
lights, instrument panel lights, console
box light, audio system, power outlet,
garage door opener switch, transmis-
sion system, headlight cleaner, seat
heaters, steering switches, power
back door
63ECU-IG NO.17. 5
Power rear view mirror control, moon
roof, multiplex communication system,
shift lock control system, multiplex
communication system (power door
lock system, wireless remote control
system), driving position memory sys-
tem, vehicle dynamics integrated
management, windshield wipers,
transmission, seat heaters, power
seats, tilt and telescopic steering,
power back door
64ECU-IG NO.210
Automatic headlight leveling system,
vehicle dynamics integrated manage-
ment, dynamic laser cruise control,
headlight cleaner, adaptive front-light-
ing system
FuseAmpereCircuit

378
RX400h_U
5-1. Essential information
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
● The hybrid system is running, but the vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be tem-
porarily towed using a cable or chain secured to the emergency towing
eyelet(s). This should only attempted on hard, surfaced roads for short
distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The vehi-
cle’s wheels, drive train, axles, steer ing and brakes must be in good condi-
tion.
Towing eyelets
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.
If towing from the front, the vehicle’s rear wheels and axles must be in good
condition. ( →P. 3 8 2 )
If they are damaged, use a towing dolly or flat bed truck.

5
When trouble arises
379
5-1. Essential information
RX400h_U
■Emergency towing procedureRelease the parking brake.
Shift the shift lever to N.
Turn the engine switch to the ACC (hybrid system off) or ON (hybrid sys-
tem on) position.
CAUTION
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelets and the cables or chains.
●If the hybrid system is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
NOTICE
■To prevent causing serious damage to the transmission
Never tow this vehicle from the rear with four wheels on the ground.
This may cause serious damage to the transmission.
STEP1
STEP2
STEP3

382
5-1. Essential information
RX400h_U
Towing with a wheel lift-type truckFrom the front (2WD models) Release the parking brake.
From the front (AWD models) Use a towing dolly under the rear
wheel.
NOTICE
■To prevent damaging the vehicle
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 causing serious damage to the transmission (AWD models)
Never tow this vehicle from the front with the rear wheels on the ground.

5
When trouble arises
383
5-1. Essential information
RX400h_UFrom rear
Use a towing dolly under the front
wheels.
Using a flat bed truck
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.
NOTICE
■To prevent causing serious damage to the transmission
Never tow this vehicle from the rear with the front wheels on the ground.
FrontFront