
6316-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
NOTICE
■Repairing  or  replacing  tires,  wheels,  tire  pressure  warning  valves, 
transmitters and tire valve caps 
● When  removing  or  fitting  the  wheels,  tires  or  the  tire  pressure  warning 
valves  and  transmitters,  contact  any  authorized  Toyota  retailer  or Toyota 
authorized  repairer,  or  any  reliable  repairer  as  the  tire  press ure  warning 
valves and transmitters may be damaged if not handled correctly . 
● Make  sure  to  install  the  tire  valve  caps.  If  the  tire  valve  caps  are  not 
installed,  water  could  enter  the  tire  pressure  warning  valves  a nd  the  tire 
pressure warning valves could be bound. 
● When replacing tire valve caps, do not use tire valve caps other than those 
specified.
The cap may become stuck. 
■ Driving on rough roads 
Take particular care when driving on roads with loose surfaces  or potholes. 
These  conditions  may  cause  losses  in  tire  inflation  pressure,  r educing  the 
cushioning ability of the tires. In addition, driving on rough  roads may cause 
damage to the tires themselves, as well as the vehicle’s wheels  and body. 
■ To avoid damage to the tire pressure warning valves and transmitters 
When a tire is repaired with liquid sealants, the tire pressure  warning valve 
and transmitter may not operate properly. If a liquid sealant i s used, contact 
any authorized Toyota retailer or Toyota  authorized repairer, o r any reliable 
repairer or other qualified service shop as soon as possible. A fter use of liq- 
uid sealant, make sure to replace the tire pressure warning val ve and trans- 
mitter when repairing or replacing the tire. ( P. 618) 
■ If tire inflation pressure of each tire becomes low while driving 
Do not continue driving, or your tires and/or wheels may be rui ned. 

6336-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
WARNING
■Proper inflation is critical to save tire performance 
Keep your tires properly inflated.  
If  the  tires  are  not  properly  inflated,  the  following  condition s  may  occur 
which could lead to an accident resulting in death or serious i njury: 
● Excessive wear 
● Uneven wear 
● Poor handling 
● Possibility of blowouts resulting from overheated tires 
● Air leaking from between tire and wheel 
● Wheel deformation and/or tire damage 
● Greater  possibility  of  tire  damage  while  driving  (due  to  road  hazards, 
expansion joints, sharp edges in the road, etc.)
NOTICE
■ When inspecting and adjusting tire inflation pressure 
Be sure to put the tire valve caps back on. 
If  a  valve  cap  is  not  installed,  dirt  or  moisture  may  get  into  the  valve  and 
cause an air leak, resulting in decreased tire inflation pressu re. 

6356-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
■When replacing wheels 
The  wheels  of  your  vehicle  are  equipped  with  tire  pressure  warn ing  valves 
and  transmitters  (except  for  compact  spare  tire)  that  allow  the   tire  pressure 
warning system to provide advance warning in the event of a los s in tire infla- 
tion  pressure.  Whenever  wheels  are  replaced,  tire  pressure  warning  valves 
and transmitters must be installed. ( P. 618)
WARNING
■When replacing wheels 
● Do not use wheels that are a different size from those recommended in the 
Owner’s Manual, as this may resu lt in a loss of handling control. 
● Never  use  an  inner  tube  in  a  leaking  wheel  which  is  designed  for  a  tube- 
less  tire.  Doing  so  may  result  in  an  accident,  causing  death  or   serious 
injury. 
■ When installing the wheel nuts 
● Be sure to install the wheel nuts with the tapered ends facing inward.  
( P.  738)  Installing  the  nuts  with  the  tapered  ends  facing  outward  can 
cause  the  wheel  to  break  and  eventually  cause  the  wheel  to  come  off 
while driving, which could lead to an accident resulting in dea th or serious 
injury. 
● Never use oil or grease on the wheel bolts or wheel nuts.  
Oil  and  grease  may  cause  the  wheel  nuts  to  be  excessively  tight ened, 
leading  to  bolt  or  disc  wheel  damage.  In  addition,  the  oil  or  grease  can 
cause the wheel nuts to loosen and the wheel may fall off, caus ing an acci- 
dent  and  resulting  in  death  or  serious  injury.  Remove  any  oil  o r  grease 
from the wheel bolts or wheel nuts. 
■ Use of defective wheels prohibited 
Do not use cracked or deformed wheels.  
Doing so could cause the tire to leak air during driving, possi bly causing an 
accident. 

6366-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
NOTICE
■Replacing tire pressure warning valves and transmitters 
● Because  tire  repair  or  replacement  may  affect  the  tire  pressure  warning 
valves  and  transmitters,  make  sure  to  have  tires  serviced  by  an y  autho- 
rized Toyota  retailer or Toyota  authorized  repairer,  or  any  rel iable  repairer 
or  other  qualified  service  shop.  In  addition,  make  sure  to  purc hase  your 
tire  pressure  warning  valves  and  transmitters  at  any  authorized   Toyota 
retailer or Toyota authorized repairer, or any reliable repaire r. 
● Ensure that only genuine Toyota wheels are used on your vehicle. 
Tire pressure warning valves and transmitters may not work prop erly with 
non-genuine wheels. 

6436-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
■Cleaning the air intake vent 
● Dust in the air intake vent may interfere with the cooling of the hybrid battery 
(traction  battery).  If  charging/discharging  of  the  hybrid  batte ry  (traction  bat- 
tery) becomes limited, the distance that the vehicle can be dri ven using the 
electric  motor  (traction  motor)  may  be  reduced  and  the  fuel  eco nomy  may 
be reduced. Inspect and clean the air intake vent periodically. 
● Improper  handling  of  the  air  intake  vent  cover  and  filter  may  result in dam- 
age to them. If you have any concerns about cleaning the filter , contact any 
authorized  Toyota  retailer  or  Toyota  authorized  repairer,  or  an y  reliable 
repairer. 
■ If  “Maintenance  required  for  Traction  battery  cooling  parts  See owner’s 
manual.” is shown on the multi-information display 
● If  this  message  is  shown  on  the  multi-information  display,  remove the air 
intake vent cover and clean the filter. ( P. 640) 
● After cleaning the air intake vent, start the hybrid system and check that the 
warning message is no longer displayed.  
After  the  hybrid  system  is  started,  it  may  be  necessary  to  driv e  the  vehicle 
up to approximately 20 minutes before the warning message disap pears. If 
the  warning  message  does  not  disappear  after  driving  for  approp riately  20 
minutes,  have  the  vehicle  inspected  by  any  authorized  Toyota  re tailer  or 
Toyota authorized repairer, or any reliable repairer.
WARNING
■ When cleaning the air intake vent 
● Before cleaning the air intake vent, make sure to turn the power switch off 
to stop the hybrid system. 
● Do  not  use  water  or  other  liquids  to  clean  the  air  intake  vent.  If  water  is 
applied to the hybrid battery (traction battery) or other compo nents, a mal- 
function or fire may occur. 
■ When removing the air intake vent cover 
Do not touch the service plug located near the air intake vent.  (P. 126) 

6446-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
NOTICE
■When cleaning the air intake vent 
■ To prevent damage to the vehicle 
● Do  not  allow  water  or  foreign  matter  to  enter  the  air  intake  vent  when  the 
cover is removed. 
● Carefully handle the removed filter so that it will not be damaged. If the fil- 
ter is damaged, have it replaced with a new filter by any autho rized Toyota 
retailer or Toyota authorized repairer, or any reliable repaire r. 
● Make  sure  to  reinstall  the  filter  and  cover  to  their  original  positions  after 
cleaning. 
● Do not  install  anything to  the air  intake  vent  other  than the  exclusive  filter 
for this vehicle or use the vehicle without the filter installe d. 
■ If “Maintenance required for Traction battery cooling parts See owner’s 
manual.” is shown on the multi-information display 
If  the  vehicle  is  continuously  driven  with  the  warning  message  (indicating 
that  charging/discharging  of  the  hybrid  battery  [traction  batte ry]  may 
become  limited)  displayed,  the  hybrid  battery  (traction  battery )  may  mal- 
function.  If  the  warning  message  is  displayed,  clean  the  air  in take  vent 
immediately.
When  cleaning  the  air  intake  vent,  make
sure  to  only  use  a  vacuum  to  suck  out 
dust  and  clogs.  If  a  compressed  air  blow
gun,  etc.,  is  used  to  blow  out  dust  and 
clogs,  the  dust  or  clogs  may  be  pushed 
into  the  air  intake  vent,  which  may  affect
the  performance  of  the  hybrid  battery 
(traction  battery)  and  cause  a  malfunc- 
tion. 

6476-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
WARNING
■Battery precautions 
Observe the following precautions. 
Failure to do so may result in death or serious injury. 
● Do not swallow the battery. Doing so may cause chemical burns. 
● A coin battery or button battery is used in the electronic key. If a battery is 
swallowed, it may cause severe chemical burns in as little as 2  hours and 
may result in death or serious injury. 
● Keep away new and removed batteries from children. 
● If the cover cannot be firmly closed, stop using the electronic key and stow 
the  key  in  the  place  where  children  cannot  reach,  and  then  cont act  any 
authorized  Toyota  retailer  or  Toyota  authorized  repairer,  or  an y  reliable 
repairer. 
● If  you  accidentally  swallow  a  battery  or  put  a  battery  into  a  part  of  your 
body, get emergency medical attention immediately. 
■ To prevent battery explosion or leakage of flammable liquid or gas 
● Replace the battery with a new battery of the same type. If a wrong type of 
battery is used, it may explode. 
● Do  not  expose  batteries  to  extremely  low  pressure  due  to  high  altitude or 
extremely high temperatures. 
● Do not burn, break or cut a battery. 
■ Certification for the lithium battery 
CAUTION: 
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT 
TYPE. 
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■ For normal operation after replacing the battery 
Observe the following precautions to prevent accidents: 
● Always work with dry hands. 
Moisture may cause the battery to rust. 
● Do not touch or move any other component inside the remote control. 
● Do not bend either of the battery terminals. 

6526-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
■After a fuse is replaced 
● If the lights do not turn on even after the fuse has been replaced, a bulb may 
need replacement. ( P. 653) 
● If  the  replaced  fuse  blows  again,  have  the  vehicle  inspected  by  any  autho- 
rized Toyota retailer or Toyota authorized repairer, or any rel iable repairer. 
■ If there is an overload in a circuit 
The fuses are designed to blow, protecting the wiring harness f rom damage. 
■ When replacing light bulbs 
Toyota  recommends  that  you  use  genuine Toyota  products  designed  for this 
vehicle. Because certain bulbs are connected to circuits design ed to prevent 
overload,  non-genuine  parts  or  parts  not  designed  for  this  vehi cle  may  be 
unusable.
WARNING
■ To prevent system breakdowns and vehicle fire 
Observe the following precautions.  
Failure  to  do  so  may  cause  damage  to  the  vehicle,  and  possibly  a  fire  or 
injury. 
● Never  use  a  fuse  of  a  higher  amperage  rating  than  that  indicated,  or  use 
any other object in place of a fuse. 
● Always use a genuine Toyota fuse or equivalent.  
Never replace a fuse with a wire, even as a temporary fix. 
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses 
Have  the  cause  of  electrical  overload  determined  and  repaired  b y  any 
authorized  Toyota  retailer  or  Toyota  authorized  repairer,  or  an y  reliable 
repairer as soon as possible.