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2-1. Driving procedures
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
NOTICE
■When encountering flooded roads
Do  not  drive  on  a  road  that  has  flooded  after  heavy  rain  etc.  Doing  so  may
cause the following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In  the  event  that  you  drive  on  a  flooded  road  and  the  vehicle  is  flooded,  be
sure to have your Toyota dealer check the following:
●Brake function
●Changes  in  quantity  and  quality  of  engine  oil,  transmission  fluid  for  the
hybrid system, etc.
●Lubricant  condition  for  the  bearings  and  suspension  joints  (where  possi-
ble), and the function of all joints, bearings, etc.
If  the  shift  control  system  is  damaged  by flooding,  it  may not  be possible to
shift the shift position to P, or from P to other positions. When the shift posi-
tion  cannot  be  changed  from  P  to  any  other  position,  the  front  wheels  will
lock,  and  you  will  be  unable  to  tow  the  vehicle  with  the  front  wheels  on  the
ground, as the front wheels may be locked. In this case, transport the vehicle
with both front wheels or all four wheels lifted. 
355
2-5. Driving information
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropri-
ate to the prevailing weather conditions. 
■Pre-winter preparations
●Use  fluids  that  are appropriate  to the  prevailing  outside  tem-
peratures. 
•Engine oil
•Engine/power control unit coolant
•Washer fluid
●Have a service technician inspect  the  condition of  the 12-volt
battery.
●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. 
438
4-2. Maintenance
PRIUS PHV_OM_OM47A11U_(U)
CAUTION
■If your vehicle is not properly maintained
Improper  maintenance  could  result  in  serious  damage  to  the  vehicle  and
possible serious injury or death.
■Handling of the 12-volt battery
●Engine exhaust, some of its constituents, and a wide variety of automobile
components  contain  or emit  chemicals known to  the State of  California to
cause  cancer  and  birth  defects  and  other  reproductive  harm.  Work  in  a
well ventilated area.
●Oils,  fuels  and  fluids  contained  in  vehicles  as  well  as  waste  produced  by
component  wear  contain  or  emit  chemicals  known  to  the  State  of  Califor-
nia  to  cause  cancer  and  birth  defects  or  other  reproductive  harm.  Avoid
exposure and wash any affected area immediately.
●12-volt  battery  posts,  terminals  and  related  accessories  contain  lead  and
lead  compounds  which  are  known  to  cause  brain  damage.  Wash  your
hands after handling. ( oP.   4 7 6 )