2015 LEXUS RX450h light

2852-4. Using other driving systems
2
When driving CAUTION■
When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary in any of the following situations: ●
When water or snow thrown up by the surrounding vehicles hinders the function-
ing of the sensor●
When your vehicle is pointing upwards (caused by a heavy load in the luggage
compartment etc.)●
Vehicles that cut in suddenly●
Vehicles with small rear ends (tra ilers with no load on board etc.)●
Motorcycles traveling in the same lane■
Handling the radar sensor
Observe the following to ensure the pre-collision system can function effectively: ●
Keep the sensor and front grille clean at all times.
Clean the sensor and front grille with a so ft cloth so you do not mark or damage
them.●
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off po sition, the system may become inaccurate
or malfunction. If the sensor or surround ing area is subject to a strong impact,
always have the area inspected an d adjusted by your Lexus dealer.●
Do not disassemble the sensor.●
Do not attach accessories or stickers to the sensor, grille or surrounding area.●
Do not modify or paint the sensor and grille cover.

2892-4. Using other driving systems
2
When driving ●
Instances of the Blind Sp ot Monitor unnecessarily detecting a vehicle and/or
object may increase under the following conditions:
• When there is only a short distance between your vehicle and a guardrail, wall
etc.
• When there is only a short distance between your vehicle and a following
vehicle.
• When vehicle lanes are narrow and a vehicle driving 2 lanes across from your
vehicle enters the detection area■
The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult
to see.■
When there is a malfunction in the system
If a system malfunction is detected due to any of the following reasons, warning
message is displayed: (  P. 74 3 )●
There is a malfunction with the sensors●
The sensors have become dirty●
The outside temperature is extremely high or low●
The sensor voltage has become abnormal■
Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A.
FCC ID: OAYSRR2A
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.

2912-4. Using other driving systems
2
When driving CAUTION■
Handling the radar sensor
One Blind Spot Monitor is installed inside the left and right side of the vehicle rear
bumper respectively. Observe the followin g to ensure the Blind Spot Monitor can
function correctly.
●
Do not subject the sensor or surrounding area on the bumper to a strong impact.
If the sensor moves even slightly off position, the system may malfunction and
vehicles that enter the detection area ma y not be detected. If the sensor or sur-
rounding area is subject to a strong impact, always have the area inspected by
your Lexus dealer.●
Do not disassemble the sensor.●
Do not attach accessories or stickers to the sensor or surrounding area on the
bumper.●
Do not modify the sensor or surrounding area on the bumper.●
Do not paint the sensor or surrounding area on the bumper. ●
Keep the sensor and its surrounding area
on the bumper clean at all times.

3022-5. Driving information
Winter driving tips Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the ve hicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
● Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Power control unit coolant
• Washer fluid
● Have a service technician inspect the condition of the 12-volt bat-
tery.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the front tires. Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■ Before driving the vehicle
Perform the following accord ing to the driving conditions:
● Do not try to forcibly open a w indow or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumu lated on the air inlet vents in
front of the windshield.
● Check for and remove any exce ss ice or snow that may have
accumulated on the exterior lights, vehicle's roof, chassis, around
the tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.

3122-5. Driving information
Hitch
Trailer hitch assemblies have differ ent weight capacities. Lexus recom-
mends the use of Lexus hitch/bracket for your vehicle. For details, con-
tact your Lexus dealer.
● If you wish to install a trailer hitch, contact your Lexus dealer.
● Use only a hitch that conforms to the gross tr ailer weight requirement
of your vehicle.
● Follow the directions supplied by the hitch manufacturer.
● Lubricate the hitch ball with a light coating of grease.
● Remove the trailer hitch whenever you are not towing a trailer. After
removing the hitch, seal any mount ing hole in the vehicle body to pre-
vent entry of any substances into the vehicle.

3142-5. Driving information
Positions for towing hitch receiver and hitch ball
Weight carrying ball position:
45.1 in. (1145 mm)
Connecting trailer lights
Use the wire harness stored in the
rear end under body.

3152-5. Driving information
2
When driving ■
Auto current cut-off function
In case of over current, the auto cut-off function stops the power flowing to the
trailer lights to prevent damage to the vehicle’s electrical system.
This function is activated when the rated current of any of the following trailer light
circuit components is exceeded: ●
Tail lights: maximum 7.8 A ●
Stop/turn signal light (right): maximum 4.5 A●
Stop/turn signal light (left): maximum 4.5 A■
When the auto current cut function is activated
If a trailer light does not come on due to the activation of the auto current cut func-
tion, the light system will need to be reset.
Follow the reset procedure shown below. ●
If a tail light does not come on, turn off the headlight switch.●
If the right-side stop/turn signal light does not come on, put the turn signal in the
off position or remove foot from the brake pedal.●
If the left-side stop/turn signal light does not come on, put the turn signal in the
off position or remove foot from the brake pedal.
If the emergency flashers do not operate, press the emergency flasher switch to
turn them off.
After the light system is reset, operate the light switches again to see if the lights
operate normally.
If the lights do not operate normally, have the vehicle inspected by your Lexus
dealer.

3162-5. Driving information
Trailer towing tips
Your vehicle will handle differently when towing a trailer. Help to avoid an
accident, death or serious injury, keep the following in mind when towing:
● Speed limits for towing a trailer va ry by state or province. Do not
exceed the posted towing speed limit.
● Lexus recommends that the vehicle-trailer speed limit is 65 mph (104
km/h) on a flat, straight, dry road. Do not exceed this limit, the posted
towing speed limit or the speed limit for your trailer as set forth in your
trailer owner’s manual, whichever is lowest. Instability of the towing
vehicle-trailer combination (trailer sway) increases as speed increases.
Exceeding speed limits may cause loss of control.
● Before starting out, check the trailer lights, tires and the vehicle-trailer
connections. Recheck after driving a short distance.
● Practice turning, stopping and reversing with th e trailer attached in an
area away from traffic until you be come accustomed to the feel of the
vehicle-trailer combination.
● Reversing with a trailer attached is difficult and requires practice. Grip
the bottom of the steering wheel and move your hand to the left to
move the trailer to the left. Move yo ur hand to the right to move the
trailer to the right. (This is gene rally opposite to reversing without a
trailer attached.) Avoid sharp or prolonged turning. Have someone
guide you when reversing to redu ce the risk of an accident.
● As stopping distance is increased when towing a trailer, vehicle-to-
vehicle distance should be increas ed. For each 10 mph (16 km/h) of
speed, allow at least one vehicle and trailer length.
● Avoid sudden braking as you may skid, resulting in the trailer jackknif-
ing and a loss of vehicle control. Th is is especially true on wet or slip-
pery surfaces.
● Avoid jerky starts or sudden acceleration.