Lexus CT200H Manual page 271


When the "TRC OFF" indicator comes on even if the TRC OFF switch has not
been pressed
TRC cannot be operated. Contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.

Sounds and vibrations caused by the ABS, brake assist, VSC and TRC

A sound may be heard from the engine compartment when the hybrid system is
started, just after the vehicle begins to move, if the brake pedal is depressed
forcefully or repeatedly, or 1-2 minutes after the hybrid system is stopped. This
sound does not indicate that a malfunction has occurred in any of these systems.

Any of the following conditions may occur when the above systems are operat-
ing. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.

EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.

Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from over-
heating when there is frequent steering input over an extended period of time.
The steering wheel may feel heavy as a result. Should this occur, refrain from
excessive steering input or stop the vehicle and turn the hybrid system off. The
EPS system should return to normal within 10 minutes.

Automatic reactivation of TRC system
After turning the TRC system off, the system will be automatically re-enabled in
the following situations:

When the power switch is turned off

The TRC will turn on when vehicle speed increases

Operating conditions of emergency brake signal
When the following three conditions are met, the emergency brake signal will
operate:

The emergency flashers are off.

Actual vehicle speed is over 55 km/h (35 mph).

The brake pedal is depressed in a manner that cause the system to judge from
the vehicle deceleration that this is a sudden braking operation.

Automatic system cancelation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:

The emergency flashers are turned on.

The brake pedal is released.

The system judges from the vehicle deceleration that is not a sudden braking
operation.
CT200h_OM_OM76102E_(EE)
4-5. Using the driving support systems
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