Page 307 of 770

3054-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)• When a very bright light ahead, such as the sun or the headlights of
oncoming traffic, shines directly into the front camera
• When approaching the side or front of a vehicle ahead
• If a vehicle ahead is a motorcycle
• If a vehicle ahead is narrow, such as a personal mobility vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shaped, such as a tractor or side car
• If a vehicle ahead is a child sized bicycle, a bicycle that is carrying a large
load, a bicycle ridden by more than one person, or a uniquely shaped
bicycle (bicycle with a child seat, tandem bicycle, etc.)
• If a pedestrian/or the riding height of a bicyclist ahead is shorter than
approximately 1 m (3.2 ft.) or taller than approximately 2 m (6.5 ft.)
• If a pedestrian/bicyclist is wearing oversized clothing (a rain coat, long
skirt, etc.), making their silhouette obscure
• If a pedestrian is bending forward or squatting or bicyclist is bending for-
ward
• If a pedestrian/bicyclist is moving fast
• If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
• When driving in inclement weather such as heavy rain, fog, snow or a
sandstorm
• When driving through steam or smoke
• When the surrounding area is dim, such as at dawn or dusk, or while at
night or in a tunnel, making a detectable object appear to be nearly the
same color as its surroundings
• When driving in a place where the surrounding brightness changes sud-
denly, such as at the entrance or exit of a tunnel
• After the hybrid system has started the vehicle has not been driven for a
certain amount of time
• While making a left/right turn and for a few seconds after making a left/
right turn • If a preceding vehicle has a low rear
end, such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance 
     
        
        Page 346 of 770
3444-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)■When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the
brake pedal when deceleration of the system is insufficient or operate the
accelerator pedal when acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (P. 339) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
●Preceding vehicle has an extremely high
ground clearance 
     
        
        Page 391 of 770

3894-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE) 
■ Objects which the system may not properly detect 
The shape of the object may prevent the sensor from detecting it. Pay partic- 
ular attention to the following objects: 
● Wires, fences, ropes, etc. 
● Cotton, snow and other materials that absorb sound waves 
● Sharply-angled objects 
● Low objects 
● Tall objects with upper sections projecting outwards in the direction of your 
vehicle 
■ Situations in which the system may not operate properly 
Certain vehicle conditions and the surrounding environment may affect the 
ability of a sensor to correctly detect objects. Particular instances where this 
may occur are listed below. 
● There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors 
will resolve this problem.) 
● A sensor is frozen. (Thawing the area will resolve this problem.) In espe- 
cially cold weather, if a sensor is frozen the sensor display may be displayed
abnormally, or objects, such as a wall, may not be detected. 
● On an extremely bumpy road, on an incline, on gravel, or on grass. 
● When vehicle horns, vehicle detectors, motorcycle engines, air brakes of 
large vehicles, the clearance sonar of ot her vehicles or other devices which 
produce ultrasonic waves are near the vehicle 
● A sensor is coated with a sheet of spray or heavy rain. 
● If objects draw too close to the sensor. 
● When a pedestrian is wearing clothing that does not reflect ultrasonic waves 
(ex. skirts with gathers or frills). 
● When objects that are not perpendicular to the ground, not perpendicular to 
the vehicle traveling direction, uneven, or waving are in the detection range. 
● Strong wind is blowing 
● When driving in inclement weather such as fog, snow or a sandstorm 
● When an object that cannot be detected is between the vehicle and a 
detected object 
● If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front 
of the vehicle or runs out from the side of the vehicle 
● When a sensor or the area around a 
sensor is extremely hot or cold. 
     
        
        Page 580 of 770

5787-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
WARNING
Observe the following precautions. 
Failure to do so may result in death or serious injury. 
■ Installing towing eyelets to the vehicle 
● The towing eyelets are only for the vehicle equipped with them. Do not use 
the towing eyelets for another vehicle, and do not use the towing eyelets
for this vehicle on another vehicle. 
● Make sure that towing eyelets are installed securely. 
If not securely installed, towing eyelets may come loose during towing.
NOTICE
■ Towing with a sling-type truck 
■ To prevent damage to the vehicle when towing using a wheel-lift type 
truck 
When raising the vehicle, ensure adequate ground clearance for towing at 
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed. 
■ To prevent damage to the vehicle when towing with a sling-type truck 
Do not tow with a sling-type truck,  either from the front or rear. 
■ To prevent damage to the vehicle during emergency towing 
Do not secure cables or chains to the suspension components
Do not tow with a sling-type truck to pre- 
vent body damage.