2017 Lexus IS300h Bumper

3404-5. Using the driving support systems
IS300h_EE(OM53D89E)
The Blind Spot Monitor function uses radar sensors to detect vehicles that are
traveling in an adjacent lane in the area that is not reflected in the outside rear
view mirror (the blind spot), and advises the driver of the vehicles existence via
the outside rear view mirror indicator.
The areas that vehicles can be detected in are outlined below.
The range of each detection area is:
Approximately 0.5 m (1.6 ft.) to 3.5
m (11.5 ft.) from either side of the
vehicle*
*: The area between the side of the vehicle
and 0.5 m (1.6 ft.) from the side of the
vehicle cannot be detected.
Approximately 3 m (9.8 ft.) from the
rear bumper
Approximately 1 m (3.3 ft.) forward
of the rear bumper
BSM function
BSM function detection areas
1
2
3
WARNING
■Cautions regarding the use of the function
The driver is solely responsible for safe dr iving. Always drive safely, taking care to
observe your surroundings.
The BSM function is a supplementary function which alerts the driver that a vehicle is in
a blind spot of the outside rear view mirrors or is approaching rapidly from behind into
a blind spot. Do not overly rely on the BSM function. As the function cannot judge if it is safe to change lanes, over reliance could lead to an accident resulting in death or seri-
ous injury.
As the system may not function correctly under certain conditions, the driver’s own visual confirmation of safety is necessary.

3424-5. Using the driving support systems
IS300h_EE(OM53D89E)
■Conditions under which the BSM function may not function correctly
●The BSM function may not detect vehicles correctly in the following situations:
• When the sensor is misaligned due to a stro ng impact to the sensor or its surround-
ing area
• When mud, snow, ice, a sticker, etc. is covering the sensor or surrounding area on the rear bumper
• When driving on a road surface that is wet with standing water during bad weather,
such as heavy rain, snow, or fog • When multiple vehicles are approaching wi th only a small gap between each vehicle
• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your vehicle and the vehicle that enters the detection area
• When the difference in speed between your vehicle and another vehicle is changing
• When a vehicle enters a detection area traveling at about the same speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection area
• When driving up and down consecutive steep inclines, such as hills, dips in the road, etc.
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When vehicle lanes are wide, or when drivin g on the edge of a lane, and the vehicle in an adjacent lane is fa r away from your vehicle
• When towing a trailer (vehicles with towing package)
• When items such as a bicycle carrier are installed on the rear of the vehicle • When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area
• Immediately after the BSM function is turned on
●Instances of the BSM function unnecessarily detecting a vehicle and/or object may
increase in the following situations:
• When the sensor is misaligned due to a stro ng impact to the sensor or its surround- ing area
• When the distance between your vehicle and a guardrail, wall, etc. that enters the
detection area is short • When driving up and down consecutive steep inclines, such as hills, dips in the road,
etc.
• When vehicle lanes are narrow, or when driv ing on the edge of a lane, and a vehicle traveling in a lane other than the ad jacent lanes enters the detection area
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When the tires are slipping or spinning • When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the vehicle
• When towing a trailer (vehicles with towing package)

3464-5. Using the driving support systems
IS300h_EE(OM53D89E)
■Conditions under which the RCTA function will not detect a vehicle
The RCTA function is not designed to dete ct the following types of vehicles and/or objects:
●Vehicles approaching from directly behind
●Vehicles backing up in a parking space next to your vehicle
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
*: Depending on the conditions, detection of a vehicle and/or object may occur.
■Conditions under which the RCTA function may not function correctly
●The RCTA function may not detect vehicles correctly in the following situations:
• When the sensor is misaligned due to a stro ng impact to the sensor or its surround-
ing area • When mud, snow, ice, a sticker, etc. is covering the sensor or surrounding area on
the rear bumper
• When driving on a road surface that is wet with standing water during bad weather,
such as heavy rain, snow, or fog • When multiple vehicles are approaching wi th only a small gap between each vehicle
• When a vehicle is approaching at high speed
• When towing a trailer (vehicles with towing package)
●Vehicles that the sensors cannot detect due to
obstructions
• When backing up on a slope with a sharp
change in grade

5037-1. Maintenance and care
7
Maintenance and care
IS300h_EE(OM53D89E)
■When using a car wash (vehicles with entry function)
If the door handle becomes wet while the electronic key is within the effective range, the door may lock and unlock repeatedly. In that case, follow the following correction proce-
dures to wash the vehicle:
●Place the key in a position 2 m (6 ft.) or more separate from the vehicle while the vehi- cle is being washed. (Take care to ensure that the key is not stolen.)
●Set the electronic key to battery-saving mode to disable the smart entry & start system.
( P. 158)
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or
abrasive cleaners. Do not use stro ng or harsh chemical cleaners. Use the same mild detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving a long
distance in hot weather.
●Wash detergent from the wheels immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc. from th e front side windows regularly. • Do not allow dirt and dust to accumula te on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning the windows. • Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance has become insufficient, the coating can be
repaired. Contact any authorized Lexus retail er or Lexus authorized repairer, or any reliable repairer.

5047-1. Maintenance and care
IS300h_EE(OM53D89E)
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components etc. to catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●When the upper part of the windshield where the raindrop sensor is located is touched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps ag ainst the windshield
●If you directly touch the raindrop sensor body or if something bumps into the raindrop
sensor
■Precautions regarding the exhaust pipes
Exhaust gases cause the exhaus t pipes to become quite hot.
When washing the vehicle, be careful not to touch the pipes until they have cooled suf-
ficiently, as touching hot exhaust pipes can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If
this occurs, consult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
Set the wipers to the intermittent windshield
wipers. ( P. 248)
If AUTO mode is sele cted, the wipers may operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the wiper blades.

5918-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur- rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.
 Clean off the dirt, snow, ice, etc. and drive the vehi- cle with the operation conditions of the BSM func-
tion ( P. 341) satisfied for approximately 10
minutes. If the warning me ssage does not disappear, the sensor may be misaligned. Have the vehicle
inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
(If equipped)
Indicates a malfunction in:
• The cruise control system; or
• The dynamic radar cruise control system Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reactivate
the system. A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
(If equipped)
Indicates a malfunction in the LDA (Lane Departure
Alert with steering control) system
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
The operation conditions of the camera sensor (tem- perature, etc.) are not met.
 When the operation conditions of the camera sen-
sor (temperature, etc.) are met, the following sys- tems will become available.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering control) system
•Automatic High Beam
• RSA (Road Sign Assist)
Warning messageDetails/Actions
(Flashes)