2012 Lexus LS 600h Owners Manual - Page 259

261

2-4. Using other driving systems

2

■

Temporary cancellation of the LKA system functions

If any of the following occurs, the LKA system functions will be temporarily can-

celled. The functions will resume after the necessary operating conditions have

returned.

●

The turn signal lever is operated.

●

The steering wheel is turned as far as necessary to cause the vehicle to change

lanes.

●

The brake pedal is depressed.

The lane keeping assist function will not resume even after the brake pedal is

released because depressing the brake pedal also cancels the dynamic radar

cruise control.

●

The vehicle speed deviates from the operating range of the LKA system func-

tions.

●

While the lane lines cannot be recognized while driving.

●

The wiper operates continuously.

■

When the lane departure warning function is activated

The lane departure warning function will be temporarily canceled and will not

resume until a few seconds elapse after it is activated.

■

Hands-free driving warning

If the steering wheel is not operated for about 15 seconds on a straight road or

about 5 seconds on a curve, the signal will beep twice, indications on the multi-

information display will flash, and the lane keeping assist function will be temporarily

cancelled. If you drive the vehicle with your hands lightly touching the steering

wheel, it may also be detected as hands-free driving.

■

When the vehicle has been parked under the scorching sun or when the temper-

ature in the cabin is extremely low

The LKA system functions may not be available for a while after driving of the vehi-

cle has been started. In such cases, turn the LKA system off and turn it on again

after normal temperature returns. When the temperature in the cabin decreases or

increases, and the temperature around the camera sensor becomes appropriate

for its operation, the functions will begin operating. (

→

P. 264)