2015 LEXUS RX350 brake

2072-2. Instrument cluster
2
When driving ■ Head-up display contents
In addition to vehicle sp eed, the following informa tion will be displayed:
Audio display Displays audio information for
approximately 3 seconds when
the audio system is operated
Shift position and shift range
display Displays the selected shift posi-
tion or selected shift range
(  P. 171, 178)
Dynamic radar cruise con-
trol display (if equipped) Displays the approach warning
message (  P. 7 5 9 )
Pre-collision system display
(if equipped) Displays the brake warning
(  P. 7 5 9 )
Turn-by-turn navigation
display*
Displays a notification of
upcoming intersections during
navigation system route guid-
ance
Vehicle speed display
*: Refer to the “Navigation System
Owner’s Manual”.

2132-3. Operating the light s and windshield wipers
2
When driving Turning on the high beam headlights
With the headlights on, push the
lever away from you to turn on
the high beams. Pull the lever toward you to the
center position to turn the high
beams off.
Pull the lever toward you to turn
on the high beams. Release the lever to turn them off.
You can flash the high beams with
the headlights on or off.■
Daytime running light system ●
To make your vehicle more visible to other drivers, the daytime running lights
turn on automatically whenever the engine is started and the parking brake is
released. Daytime running lights ar e not designed for use at night.
Type A: Daytime running lights can be turned off by operating the switch.●
Compared to turning on th e headlights, the daytime running light system offers
greater durability and consumes less electricity, so it can help improve fuel
economy.■
Headlight control sensor
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.

2292-4. Using other driving systems
2
When driving ■ Canceling and resuming the constant speed control
Pulling the lever toward you
cancels the constant speed
control. The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up resumes
the constant speed control. Resuming is available when the
vehicle speed is more than
approximately 25 mph (40
km/h).

2352-4. Using other driving systems
2
When driving ■ Vehicle-to-vehicle distance settings
Select a distance from the tabl e below. Note that the distances
shown correspond to a vehicle sp eed of 50 mph (80 km/h). Vehi-
cle-to-vehicle distance increases/decreases in accordance with
vehicle speed.
■ Canceling and resuming the speed control
Pulling the lever toward you
cancels the cruise control. The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up resumes
the cruise control and returns
vehicle speed to the set
speed. Resuming is available when the
vehicle speed is more than
approximately 25 mph (40 km/h).Distance options Vehicle-to-vehicle distance
Long Approximately 164 f t. (50 m)
Medium Approximately 132 ft. (40 m)
Short Approximately 82 ft. (25 m)

2362-4. Using other driving systems
Driving in vehicle-to-vehicle distance control mode
This mode employs a radar sensor to detect the presence of vehicles up
to approximately 400 ft. (120 m) ah ead, determines the current vehicle-
to-vehicle following distance, and op erates to maintain a suitable follow-
ing distance from the vehicle ahead. Note that vehicle-to-vehicle distance will close in when traveling on long
downhill slopes.
Example of constant speed cruising
When there are no vehicles ahead The vehicle travels at the speed set by the driver. The desired vehicle-to-vehi-
cle distance can also be set by operat ing the vehicle-to-vehicle distance con-
trol.
Example of deceleration cruising
When the vehicle ahead is driving slower than the set speed
When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a grea ter reduction in vehicle speed is nec-
essary, the system applies the brakes. A warning tone warns you when the
system cannot decelerate sufficiently to prevent your vehicle from closing in
on the vehicle ahead.

2372-4. Using other driving systems
2
When driving Example of follow-up cruising
When following a vehicle driving slower than the set speed The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration
When there are no longer any vehicl es ahead driving slower than the
set speed The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
Approach warning
When your vehicle is too close to a vehicle ahead, and sufficient auto-
matic deceleration via the cruise co ntrol is not possible, the display will
flash and the buzzer will sound to al ert the driver. An example of this
would be if another driver cuts in fron t of you while you are following a
vehicle. Apply the brakes to ensure an appropria te vehicle-to-vehicle dis-
tance.
■ Warnings may not occur when
In the following instances, there is a possibility that the warnings will not
occur:
● When the speed of the vehicle ahead matches or exceeds your
vehicle speed
● When the vehicle ahead is traveling at an extremely slow speed
● Immediately after the cruise control speed was set
● At the instant the accelerator is applied

2422-4. Using other driving systems
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 appropri-
ate, adjust the vehicle speed, as well as the distance between your vehicle and vehi-
cles 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 in tended to help the driver in determin-
ing 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 assi st the driver in low-visibility conditions. It
is still necessary for driver to pay clos e attention to the vehicle's surroundings.●
Assisting the driver to judge proper following distance
The dynamic radar cruise control determines whether the following distance
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 deter-
mine whether or not there is a possibil ity 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.■
To avoid inadvertent cruise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.

2432-4. Using other driving systems
2
When driving CAUTION■
Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise contro l in any of the following situations.
Doing so may result in inappropriate sp eed control and could cause an accident
resulting in death or serious injury. ●
In heavy traffic●
On roads with sharp bends●
On winding roads●
On slippery roads, such as thos e 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 sensors
from functioning correctly (fog, sn ow, sandstorm, heavy rain, etc.)●
When an approach warning buzzer is heard often●
When your vehicle is towing a trailer or during emergency towing■
When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (  P. 237) will not be activated, and a fatal or serious accident
may result. ●
Vehicles that cut in suddenly●
Vehicles traveling at low speeds●
Vehicles that are not moving
●
Vehicles with small rear ends (tra ilers with no load on board etc.)
●
Motorcycles traveling in the same lane