PRIUS_OM_OM47E09U_(U)
3054-5. Using the driving support systems
4
Driving
• If a vehicle ahead is narrow, such as a personal mobility vehi cle
• If a preceding vehicle has a small rear end, such as an unload ed 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  s horter  than
approximately 3.2 ft. (1 m) or taller than approximately 6.5 ft. (2 m)
• If  a  pedestrian/bicyclist  is  wearing  oversized  clothing  (a  rai n  coat,  long
skirt, etc.), making their silhouette obscure
• If a pedestrian is bending forward or squatting or bicyclist i s 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  n early  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 d riven for a
certain amount of time
• While  making  a  left/right  turn  and  for  a  few  seconds  after  mak ing  a  left/
right turn
• While driving on a curve and for a few seconds after driving o n a curve
• If your vehicle is skidding • If  a  preceding  vehicle  has  a  low  rear end, such as a low bed trailer
• If a vehicle ahead has extremely high ground clearance 
340
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
■When the sensor may not be correctly detect ing the vehicle ahead
In  the  case  of  the  following  and  depending  on  the  conditions,  o perate  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 o f vehicles, the
approach warning ( P. 336) 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 
5907-2. Steps to take in an emergency
PRIUS_OM_OM47E09U_(U)
WARNING
Observe the following precautions. 
Failure to do so may result in death or serious injury.
■While towing
● When towing using cables or chains, avoid sudden starts, etc. w hich place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets,  cables  or  chains  may  become  damaged, broken  debris  may  hit  peo-
ple, and cause serious damage.
● Do not turn the power switch off. 
This  may  lead  to  an  accident  as  the  front  wheels  will  be  locked   by  the
parking lock.
■ 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  cleara nce,  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 re ar.
■ To prevent damage to the vehic le 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.