Lexus IS220d 2012 Manual page 222

2-4. Using other driving systems

Dynamic radar cruise control can be set when

The shift lever is in the D or range 4 or higher of S has been selected.

Range 4 or higher has been selected by using the paddle shift.
(vehicles with paddle shift switch)

Vehicle speed is above approximately 50 km/h (30 mph).

Accelerating after setting the vehicle speed
The vehicle can accelerate normally. After acceleration, the set speed
resumes. However, during vehicle-to-vehicle distance control mode, the
vehicle speed may decrease below the set speed in order to maintain the dis-
tance to the vehicle ahead.

Automatic cancelation of vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the
following situations:

Actual vehicle speed falls below approximately 40 km/h (25 mph).

VSC is activated.

The sensor cannot operate correctly because it is covered in some way.

The windshield wipers are operating at high speed (when the wiper
switch is set to the "AUTO" mode or the high speed wiper operation
position).

When snow mode is set. (IS250 only)
If vehicle-to-vehicle distance control driving is automatically canceled for
any other reason, there may be a malfunction in the system. Contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional.
210
IS250/220d/200d_EE
Adjusting the speed setting:
P. 204
Canceling and resuming the
speed setting: P. 206