Toyota CH-R: Situations in which the sensors may not operate properly

• When the height or inclination of the vehicle has been changed due to modifications
• When the windshield is dirty, fogged up, cracked or damaged
• When the ambient temperature is high or low
• When mud, water, snow, dead insects, foreign matter, etc., is attached to the front of the sensor
• When in inclement weather such as heavy rain, fog, snow, or a sandstorm
• When water, snow, dust, etc., is thrown up in front of the vehicle, or when driving through mist or smoke
• When the headlights are not illuminated while driving in the dark, such as at night or when in a tunnel
• When the lens of a headlight is dirty and illumination is weak
• When the headlights are misaligned
• When a headlight is malfunctioning
• When the headlights of another vehicle, sunlight, or reflected light shines directly into the front camera
• When the brightness of the surrounding area changes suddenly
• When driving near a TV tower, broadcasting station, electric power plant, radar equipped vehicles, etc., or other location where strong radio waves or electrical noise may be present
• When a wiper blade is blocking the front camera
• When in a location or near objects which strongly reflect radio waves, such as the following:
  • Tunnels
  • Truss bridges
  • Gravel roads
  • Rutted, snow-covered roads
  • Walls
  • Large trucks
  • Manhole covers
  • Guardrail
  • Metal plates
• When near a step or protrusion
• When a detectable vehicle is narrow, such as a small mobility vehicle
• When a detectable vehicle has a small front or rear end, such as an unloaded truck
• When a detectable vehicle has a low front or rear end, such as a low bed trailer

• When a detectable vehicle has extremely high ground clearance

• When a detectable vehicle is carrying a load which protrudes from its cargo area
• When a detectable vehicle has little exposed metal, such as a vehicle which is partially covered with cloth, etc.
• When a detectable vehicle is irregularly shaped, such as a tractor, sidecar, etc.
• When the distance between the vehicle and a detectable vehicle has become extremely short
• When a detectable vehicle is at an angle
• When snow, mud, etc., is attached to a detectable vehicle
• When driving on the following kinds of roads:
  • Roads with sharp curves or winding roads
  • Roads with changes in grade, such as sudden inclines or declines
  • Roads which is sloped to the left or right
  • Roads with deep ruts
  • Roads which are rough and unmaintained
  • Roads which frequently undulate or are bumpy
• When the steering wheel is being operated frequently or suddenly
• When the vehicle is not in a constant position within a lane
• When parts related to this system, the brakes, etc., are cold or extremely hot, wet, etc.
• When the wheels are misaligned
• When driving on slick road surfaces, such as when it is covered with ice, snow, gravel, etc.
• When the course of the vehicle differs from the shape of a curve
• When the vehicle speed is excessively high when entering a curve
• When entering/exiting a parking lot, garage, car elevator, etc.
• When driving in a parking lot
• When driving through an area where there are obstructions which may contact your vehicle, such as tall grass, tree branches, a curtain, etc.
• When driving in strong wind

■Situations in which the lane may not be detected

• When the lane is extremely wide or narrow
• Immediately after changing lanes or passing through an intersection
• When driving in a temporary lane or lane regulated by construction
• When there are structures, patterns, shadows which are similar to lane lines in the surrounding
• When there are multiple white lines for a lane line
• When the lane lines are not clear or driving on a wet road surface
• When a lane line is on a curb
• When driving on a bright, reflective road surface, such as concrete

■Situations in which some or all of the functions of the system cannot operate

• When a malfunction is detected in this system or a related system, such as the brakes, steering, etc.
• When the VSC, TRC, or other safety related system is operating
• When the VSC, TRC, or other safety related system is off

■Changes in brake operation sound and pedal response

• When the brakes have been operated, brake operation sounds may be heard and the brake pedal response may change, but this does not indicate a malfunction.
• When the system is operating, the brake pedal may feel stiffer than expected or sink. In either situation the brake pedal can be depressed further.

  Further depress the brake pedal as necessary.

■Situations in which the driver monitor may not operate properly (if equipped)

In situations such as the following, the driver monitor camera may not be able to detect the driver's face, and the function may not operate properly.

• When the inside of the vehicle is hot, such as after the vehicle has been parked in the sun
• When a very bright light, such as the sun or the headlights of following vehicle, shines onto the driver monitor camera
• When the brightness inside the vehicle changes frequently due to the shadows of surrounding structures, etc.
• When a very bright light, such as the sun or the headlights of an oncoming vehicle, is shining onto the driver's face
• When light, either inside or outside of the vehicle, is being reflected from the lenses of eyeglasses or sunglasses
• When there are multiple faces in the detection range of the driver monitor camera, such as when a front or rear passenger is leaning toward the driver's seat
• When the driver's face is outside of the detection range of the driver monitor camera, such as when leaned forward or when their head is outside of the window
• When the driver monitor camera is being blocked by the steering wheel, a hand holding the steering wheel, an arm, etc.
• When the driver is wearing a hat
• When the driver is wearing an eyepatch
• When the driver is wearing eyeglasses or sunglasses that do not easily transmit infrared rays
• When the driver is wearing contact lenses
• When the driver is wearing a face mask
• When the driver is laughing or their eyes are only slightly open
• When the driver's eyes, nose, mouth, or shape of their face is blocked
• When the driver is wearing makeup which makes it difficult to detect their eyes, nose, mouth, or shape of their face
• When the driver's eyes are blocked by the frame of eyeglasses, sunglasses, hair, etc.
• When there is a device inside the vehicle that radiates near infrared rays, such as a non-genuine driver monitoring system.

Sensors used by Toyota Safety SenseDriver monitor