LEXUS RX 300

1998 — 2003 of release

Repair and operation of the car



Lexus RX 300
+ Lexus RX-300 cars
- Governing bodies and methods of operation
   + Access, protection
   + Elements of security systems
   + Car equipment, arrangement of devices and governing bodies
   + Devices of ensuring comfort
   - Methods of operation and auxiliary systems
      Start of the engine and start of motion
      Management of automatic transmission (AT)
      Brake system
      Gidrousiletil of steering
      Features of operation of the cars equipped with the catalytic converter
      Towage of the trailer
+ Settings and routine maintenance of the car
+ Engine
+ Cooling systems of the engine, heating, ventilation and air conditioning
+ A power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Automatic transmission and interaxal differential
+ Transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schematic diagrams of electric connections


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Management of automatic transmission (AT)

On the considered cars 4-staged AT controlled by an electronic control unit is established. The lever of the selector of the AT modes is located in the lower part of the central console.

Lever of the selector of the AT modes and description of the modes

All transfers of advance switches automatically if the lever of the selector of the AT modes is in situation "D".

For movement of the lever of the selector from situation "P" ignition has to be included, the brake pedal is squeezed out, and also the fixing removal button is pressed.

For the smooth movement squeeze out a brake pedal when moving the lever of the selector of situation "N" in provisions of advance or back.

The description of the switch of the AT modes ("POWER"/" SNOW) is provided in the Section Governing bodies and the equipment of salon.

It is not necessary to increase engine turns at the chosen mode of advance or back and the pressed brake pedal. During the operation of the engine on single turns do not move the selector lever from situation "N" or "P" to provisions "L", "2", "D" or "R".

AT operating modes

"P" (Parking) — In this provision of AT is blocked, and forward wheels cannot rotate. Before transferring the selector lever to this situation, completely stop the car.

Moving of the lever of the selector to situation "P" at the moving car will cause blocking of forward wheels and loss of controllability of the car, and also will lead to damage of transmission. Do not use situation "P" instead of the parking brake – they have to be shared.

"R" (The movement by a backing) — This position of the lever of the AT selector is used for the movement back.

In order to avoid damage of transmission before inclusion of transfer of a backing make sure that the car is completely stopped.

"N" (Neutral situation) — Wheels and transmission are not blocked, the car can be moved freely even if the transfer case is installed on transfer.

"D" (Movement) — Normal position of the lever of the selector at the movement of the car. AT switches between all four transfers of advance, proceeding from an optimum ratio of power and economy of fuel.

For increase in power (for example, when overtaking) completely squeeze out the accelerator pedal that AT switched to the lowering transfer. For improvement of technical parameters of the AT engine does not switch to the 4th transfer at a temperature of cooling liquid of the engine below the 70th hail.

"2" (The second transfer) — AT switches only between the 1st and 2nd transfers of advance. It is used for obtaining bigger power at the movement on rise, and also for braking by the engine at the movement on descent. The choice of this situation also helps to reduce wheel slip on the slippery road. The top limit of speed of the movement at the chosen 2 mode makes 117 km/h.

Do not exceed the most admissible speed of the movement since it leads to an overheat and breakage of AT.

— Install "L" (The lowering transfer) the selector lever in this situation at big loading, and also at the movement on the steep slope. The top limit of speed of the movement at the chosen L mode makes 65 km/h.

Do not exceed the most admissible speed of the movement since it leads to an overheat and breakage of AT.

The movement on the steep slope from the place

To start the movement on the steep slope squeeze out a brake pedal, move the AT selector lever to situation "D", "2" or "L" (depending on loading of the car and the steepness of rise) and release the parking brake. Smoothly press the accelerator pedal, releasing a brake pedal.

O/D mode

Transmission will continue to work in the O/D mode until not to switch off it by means of the switch, or before switching off of the engine. When driving with use of the O/D mode do not exceed the most admissible value of turns of a bent shaft since at the same time it is possible to damage the engine.


Inclusion To/L the O/D mode in the flashing mode indicates malfunction of transmission.

Use the O/D mode to start the movement on slippery roads, at the movement on rise, and also for braking by the engine at the movement on descent.

When using the O/D mode the gear shifting algorithm at advance in the chosen D mode changes. For inclusion of the O/D mode press the switch located on the AT selector lever handle, - has to light up corresponding To/L in a combination of devices. For switching off of the O/D mode press the switch once again, - To/L has to go out.

Inclusion and switching off of the HOLD mode does not influence work of AT at the movement in the 2 or L mode in any way.

At the switched-off O/D mode will hold the 3rd transfer in the D mode of AT and will never switch to the 1st and 4th transfers. When braking the 2nd transfer then AT comes back to the 3rd transfer for smooth acceleration joins. Respectively, at a start of motion (from the place) the 2nd transfer is used, and then AT switches to the 3rd transfer.

Blocking of switching and emergency movement of the lever of the selector from situation "P"

For safety of the driver and passengers of AT it is equipped with system of the blocking preventing movement of the lever of the selector from situation "P" if the brake pedal is not squeezed out.

For movement of the lever of the selector squeeze out of situation "P" and hold a brake pedal. Then start the engine or turn the ignition key in the provision of "ON", press the selector lever clamp located on its handle, and move the lever to required position. As well for extraction of a key from the ignition lock the lever of the selector has to be in situation "P".

If several times in a row to press and release a brake pedal, in the field of the lever of the selector noise can be heard, is a normal phenomenon which does not indicate any malfunction.

If when performing of the actions described above it was not succeeded to move the selector lever from situation "P", without releasing a brake pedal, remove a cap from the button of emergency removal of blocking, press this button and move the lever from situation "P".

Do not forget to press the button removals of fixing of the lever at the same time.