PRIUS PRIME_QG_OM47D86U_(U)
394. Things you must know
4
Things you must know
WARNING
■While driving
The  driver  should  pay  extra  attention  to  pedestrians  when  the  v ehicle  is
powered  only  by  the  electric  motor   (traction  motor). As  there  is  no  engine
noise, the pedestrians may misjudge the vehicle’s movement. Even though
the  vehicle  is  equipped  with  the  vehicle  proximity  notification   system,  drive
with care as pedestrians in the vicinity may still not notice the vehicle if the
surrounding area is noisy.
NOTICE
■ Hybrid battery (traction  battery) air intake vents
● Make  sure  not  to  block  the  air  intake  vent  with  anything,  such  as  a  seat
cover, plastic cover, or luggage. If the vents are blocked, the  charging/dis-
charging of the hybrid battery (traction battery) may become li mited.
● When dust etc. has accumulated in the air intake vent, clean it  with a vac-
uum cleaner to prevent the vent from clogging.
● Do  not  wet  or  allow  foreign  substances  to  enter  the  air  vents  a s  this  may
cause a short circuit and damage the hybrid battery (traction b attery).
● Do  not  carry  large  amounts  of  water  such  as  water  cooler  bottle s  in  the
vehicle. If water spills onto the hybrid battery (traction batt ery), the battery
may be damaged. Have the vehicle inspected by your Toyota deale r.
● A filter is installed to the air intake vent. When the filter r emains noticeably
dirty  even  after  cleaning  the  air intake vent,  filter  cleaning  or replacement
is recommended. When cleaning the filter, refer to “OWNER’S MAN UAL”.
There  are  air  intake  vents  on  both  sides
of  the  rear  seatback  for  the  purpose  of
cooling  the  hybrid  battery  (traction  bat-
tery).  If  the  vents  are  blocked,  charging/
discharging of the hybrid battery (traction
battery) may become limited. 
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PRIUS PRIME_QG_OM47D86U_(U)
4. Things you must know
NOTICE
■Onboard traction battery charger cooling air intake vents
● Do not block the air intake vents with seat covers or luggage
● If  the  air  intake  vents  are  clogged  with  dust,  clean  them  with  a  vacuum
cleaner
● Do not allow water or foreign matter to enter the air intake ve nts
● Do not spill large amounts of water near the air intake vents
If water is spilled, have the vehicle inspected by your Toyota  dealer and do
not charge the hybrid battery (traction battery) before the ins pection.
■ Notice about fuel
● For plug-in hybrid vehicles, fuel may remain in the tank for a long time and
undergo  changes  in  quality  depending  on  the  how  the  vehicle  is  used.
Refuel at least 5.3 gal.(20 L, 4.4 Imp.gal.) of fuel every 12 m onths (refuel a
total of at least 5.3 gal. [20 L, 4.4 Imp.gal.] over a 12-month  period), as this
may affect components of the fuel system or the gasoline engine .
● If  the  vehicle  has  not  been  refueled  for  a  certain  amount  of  ti me  and  it  is
possible that the quality of the fuel remaining in the tank has  changed, “No
new fuel has been added recently. Please refuel” is displayed on the multi-
information  display  when  the  power  switch  is  turned  to  ON  mode.  If  the
message is displayed, refuel the vehicle immediately.
The  grilles  under  the  rear  seats  are  the
cooling  air  intake  vents  for  the  onboard
traction  battery  charger  installed  under
the seats. 
Make  sure  to  observe  the  following  pre-
cautions  regarding  the  cooling  air  intake
vents.  Failure  to  observe  these  precau-
tions  may  result  in  a  charging  system
malfunction.