2012 Lexus CT200h dynamic cruise

255
2-4. Using other driving systems
2
When driving
CT200h_OM_OM76067E_(EE)
Dynamic radar cruise control
: If equipped
Dynamic radar cruise control supplements conventional cruise control
with a vehicle-to-vehicle distance control. In vehicle-to-vehicle dis-
tance control mode, the vehicle automatically accelerates or deceler-
ates in order to maintain a set following distance from vehicles ahead.
Indicators
Display
Set speed
Vehicle-to-vehicle distance
button
Cruise control switch

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2-4. Using other driving systems
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When driving
CT200h_OM_OM76067E_(EE)
Dynamic radar cruise control can be set when
The shift position is in D.
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.
Set speed
The set speed may be unsustainable depending on driving circumstances.
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).
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.

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2-4. Using other driving systems
CT200h_OM_OM76067E_(EE)
Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following
situations:
Actual vehicle speed is more than approximately 16 km/h (10 mph)
below the set vehicle speed.
At this time, the memorized set speed is not retained.
Vehicle speed falls below approximately 40 km/h (25 mph).
VSC is activated.
Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-
vehicle distance control operates properly. (Some obstructions, such as
snow, ice and plastic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving.
(P. 578)
Grille cover
Radar sensor

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2-4. Using other driving systems
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When driving
CT200h_OM_OM76067E_(EE)
CAUTION
Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your
vehicle and vehicles ahead by applying the brakes etc.
Cautions regarding the driving assist systems
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
Assisting the driver to measure following distance
The dynamic radar cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and
a designated vehicle traveling ahead. It is not a mechanism that allows
careless or inattentive driving, and it is not a system that can assist the
driver in low-visibility conditions. It is still necessary for driver to pay
close attention to the vehicle’s surroundings.
Assisting the driver to judge proper following distance
The dynamic radar cruise control determines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is appropriate or not. It is not capable of making any other type of
judgement. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
Assisting the driver to operate the vehicle
The dynamic radar cruise control has no capability to prevent or avoid a
collision with a vehicle traveling ahead. Therefore, if there is ever any
danger, the driver must take immediate and direct control of the vehicle
and act appropriately in order to ensure the safety of all involved.

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2-4. Using other driving systems
CT200h_OM_OM76067E_(EE)
CAUTION
To avoid inadvertent cruise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.
Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.
In heavy traffic
On roads with sharp bends
On winding roads
On slippery roads, such as those covered with rain, ice or snow
On steep downhills, or where there are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
At entrances to expressways
When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
When an approach warning buzzer is heard often
During emergency towing

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4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
5WIP30 AWindshield wipers
6RR WIP20 ARear window wiper and washer
7WASHER15 AWindshield washer
8A/C10 AAir conditioning system
9GAUGE10 A
Windshield wiper de-icer switch,
automatic headlight leveling sys-
tem
10ECU-IG NO.210 A
Windshield wipers, Lexus parking
assist monitor, Lexus parking
assist-sensor, electronically con-
trolled brake system, navigation
system, electric power steering
system, turn signal lights, emer-
gency flashers, yaw rate and G
sensor, headlight cleaner, outside
rear view mirrors, driving mode
select switch, overhead module,
pre-crash seat belts, seat heater
switches, heated steering wheel
switch, dynamic radar cruise con-
trol
11ECU-IG NO.110 ANo circuit
12S/ROOF30 AMoon roof
FuseAmpereCircuit

5
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5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
CAUTION
When using the compact spare tire
Remember that the spare tire provided is specifically designed for use
with your vehicle. Do not use your spare tire on another vehicle.
Do not use more than one spare tire simultaneously.
Replace the spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, deceleration and braking, as well as sharp cor-
nering.
When storing the compact spare tire
Be careful not to catch fingers or other body parts between the compact
spare tire and the body of the vehicle.
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
ABS & Brake assist
VSC
TRC
Cruise control (if equipped)
Dynamic radar cruise control (if equipped)
PCS (Pre-Crash Safety system) (if equipped)
EPS
Rear view monitor system (if equipped)
Lexus parking assist monitor (if equipped)
Lexus parking assist-sensor (if equipped)
Navigation system (if equipped)

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6-2. Customization
6
Vehicle specifica-
CT200h_OM_OM76067E_(EE)
*1: If equipped
*2: Interior or exterior illumination can be set separately.
*3: Except when using the cruise control or dynamic radar cruise control.
*4: Refer to the “Navigation System Owner’s Manual”.
*5: This function cannot be customized unless power window operation
using the wireless remote control is enabled.
Seat belt
reminder
(
P. 575)
Vehicle speed
linked seat belt
reminder
buzzer
OnOff–––O
Reverse
buzzer
(
P. 212)
Signal
(buzzer) when
the shift posi-
tion is in R
IntermittentSingle–––O
Outside
rear view
mirrors
(
P. 1 1 8 )
Automatic
folding/
extending
operationLinked to
locking/
unlocking
of the doorsOff
–––O
Linked to
“POWER”
switch opera-
tion
ItemFunctionDefault
settingCustomized
setting