Page 596 of 818

5946-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
Tire inflation  
pressure  
( P. 632)
• Tire pressure gauge
• Compressed air source
Washer fluid  
( P.   6 1 1 )
• Water  or  washer  fluid  containing  antifreeze  (for  win- 
ter use)
• Funnel (used only for adding water or washer fluid)
WARNING
The  engine  compartment  contains  many  mechanisms  and  fluids  that  may 
move suddenly, become hot, or become electrically energized. To  avoid death 
or serious injury, observe  the following precautions. 
■ When working on the engine compartment 
● Make  sure  that  the  “ACCESSORY”  or  “IGNITION  ON”  on  the  multi-infor- 
mation display and the “READY” indicator are both off. 
● Keep hands, clothing and tools away from the moving fan. 
● Be  careful  not  to  touch  the  engine,  power  control  unit,  radiator,  exhaust 
manifold,  etc.,  right  after  driving  as  they  may  be  hot.  Oil  and  other fluids 
may also be hot. 
● Do not leave anything that may burn easily, such as paper and rags, in the 
engine compartment. 
● Do not smoke, cause sparks or expose an open flame to fuel or the 12-volt 
battery. Fuel and 12-volt battery fumes are flammable. 
● Be extremely cautious when working on the 12-volt battery. It contains poi- 
sonous and corrosive sulfuric acid. 
● Take care because brake fluid can harm your hands or eyes and damage 
painted  surfaces.  If  fluid  gets  on  your  hands  or  in  your  eyes,  flush  the 
affected area with clean water immediately. If you still experi ence discom- 
fort, consult a doctor. 
■ When working near the electric cooling fans or radiator grille 
Be sure the power switch is off. 
With the power switch in ON mode, the electric cooling fans may  automati- 
cally start to run if the air conditioning is on and/or the coo lant temperature 
is high. ( P. 606) 
■ Safety glasses 
Wear  safety  glasses  to  prevent  flying  or  falling  material,  flui d  spray,  etc., 
from getting in your eyes.
ItemsParts and tools 
         
        
        
     
        
        Page 599 of 818
5976-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
WARNING
■Pre-driving check 
Check that the hood is fully closed and locked.  
If the hood is not locked properly, it may open while the vehic le is in motion 
and cause an accident, which may result in death or serious inj ury. 
■ After installing the support rod into the slot 
Make  sure  the  rod  supports  the  hood  securely  preventing  it  from   falling 
down onto your head or body.
NOTICE
■ When closing the hood 
Be sure to return the support rod to its clip before closing th e hood. Closing 
the hood without returning the support rod properly could cause  the hood to 
bend. 
         
        
        
     
        
        Page 605 of 818

6036-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
WARNING
■Used engine oil 
● Used  engine  oil  contains  potentially  harmful  contaminants  which may 
cause  skin  disorders  such  as  inflammation  and  skin  cancer,  so  c are 
should be taken to avoid prolonged and repeated contact. To rem ove used 
engine oil from your skin, wash thoroughly with soap and water. 
● Dispose  of  used  oil  and  filters  only  in  a  safe  and  acceptable  manner.  Do 
not dispose of used oil and filters in household trash, in sewe rs or onto the 
ground.  Call  any  authorized  Toyota  retailer  or  Toyota  authorize d  repairer, 
or  any  reliable  repairer  service  station  or  auto  parts  store  fo r  information 
concerning recycling or disposal. 
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage 
Check the oil level on a regular basis. 
■ When replacing the engine oil 
● Be careful not to spill engine oil on the vehicle components. 
● Avoid overfilling, or the engine could be damaged. 
● Check the oil level on the dipstick every time you refill the vehicle. 
● Be sure the engine oil filler cap is properly tightened. 
         
        
        
     
        
        Page 607 of 818

6056-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
■Coolant selection 
Only use  “Toyota  Super  Long  Life  Coolant”  or  a  similar  high  qua lity ethylene 
glycol based non-silicate, non-am ine, non-nitrite, and non-borate coolant with 
long-life hybrid organic acid technology. 
“Toyota Super Long Life Coolant” is a mixture of 50% coolant an d 50% deion- 
ized water. (Minimum temperature: -35 C [-31F]) 
For  more  details  about  coolant,  contact  any  authorized  Toyota  r etailer  or 
Toyota authorized repairer, or any reliable repairer. 
■ If the coolant level drops within a short time of replenishing 
Visually check the radiator, hoses, engine/power control unit c oolant reservoir 
caps, drain cock and water pump.  
If you cannot find a leak, have any authorized Toyota retailer  or Toyota autho- 
rized  repairer, or  any   reliable  repairer  test the  cap and  check  for leaks in the 
cooling system.
WARNING
■ When the hybrid system is hot 
Do not remove the engine/power control unit coolant reservoir c aps. 
The cooling system may be under pressure and may spray hot cool ant if the 
cap is removed, causing serious injuries, such as burns.
NOTICE
■ When adding coolant 
Coolant is neither plain water  nor straight antifreeze. The correct mixture of 
water  and  antifreeze  must  be  used  to  provide  proper  lubrication ,  corrosion 
protection and cooling. Be sure to read the antifreeze or coola nt label. 
■ If you spill coolant 
Be sure to wash it off with water to prevent it from damaging p arts or paint. 
         
        
        
     
        
        Page 608 of 818
6066-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
Check the radiator and condenser and clear away any foreign objects.  
If  either  of  the  above  parts  is  extremely  dirty  or  you  are  not  sure  of 
their condition, have your vehicle inspected by any authorized  To y o t a 
retailer or Toyota authorized repairer, or any reliable repaire r. 
Check the 12-volt battery as follows.
■12-volt battery exterior 
Make  sure  that  the  12-volt  battery  terminals  are  not  corroded  a nd 
that there are no loose connections, cracks, or loose clamps. 
Te r m i n a l s 
Hold-down clamp
Radiator and condenser
WARNING
■ When the hybrid system is hot 
Do not touch the radiator or condenser as they may be hot and c ause seri- 
ous injuries, such as burns.
12-volt battery (2ZR-FXE engine) 
         
        
        
     
        
        Page 611 of 818

6096-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
WARNING
■Chemicals in the 12-volt battery 
The 12-volt battery contains poisonous and corrosive sulfuric a cid and may 
produce hydrogen gas which is flammable and explosive. To reduc e the risk 
of death or serious injury, take  the following precautions while working on or 
near the 12-volt battery: 
● Do not cause sparks by touching the 12-volt battery terminals with tools. 
● Do not smoke or light a match near the 12-volt battery. 
● Avoid contact with eyes, skin and clothes. 
● Never inhale or swallow electrolyte. 
● Wear protective safety glasses when working near the 12-volt battery. 
● Keep children away from the 12-volt battery. 
■ Where to safely charge the 12-volt battery 
Always  charge  the  12-volt  battery  in  an  open  area.  Do  not  charg e  the  12- 
volt  battery  in  a  garage  or  closed  room  where  there  is  insuffic ient  ventila- 
tion. 
■ Emergency measures regarding electrolyte 
● If electrolyte gets in your eyes 
Flush  your  eyes  with  clean  water  for  at  least  15  minutes  and  ge t immedi- 
ate medical attention. If possible, continue to apply water wit h a sponge or 
cloth while traveling to the nearest medical facility. 
● If electrolyte gets on your skin 
Wash the affected area thoroughly. If you feel pain or burning,  get medical 
attention immediately. 
● If electrolyte gets on your clothes 
It can soak through clothing on to your skin. Immediately take  off the cloth- 
ing and follow the procedure above if necessary. 
● If you accidentally swallow electrolyte 
Drink  a  large  quantity  of  water  or  milk.  Get  emergency  medical  attention 
immediately. 
         
        
        
     
        
        Page 612 of 818
6106-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
WARNING
■When there is insufficient 12-volt battery fluid 
Do not use if there is insufficient fluid in the 12-volt batter y. There is a possi- 
ble danger that the 12-volt battery may explode. 
■ When disconnecting the 12-volt battery 
Do  not  disconnect  the  negative  (-)  terminal  on  the  body  side.  T he  discon- 
nected negative (-) terminal may touch the positive (+) termina l, which may 
cause a short and result in death or serious injury.
NOTICE
■ When recharging the 12-volt battery 
Never  recharge  the  12-volt  battery  while  the  hybrid  system  is  o perating. 
Also, be sure all accessories are turned off. 
■ When adding distilled water 
Avoid  overfilling.  Water  spilled  during  battery  recharging  may  cause  corro- 
sion. 
         
        
        
     
        
        Page 613 of 818
6116-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10720E
6
Maintenance and care
Add washer fluid in the following situations: 
● A washer does not work. 
● The  warning  message  appears 
on  the  multi-  information  dis- 
play. (if equipped)
Washer fluid
WARNING
■ When adding washer fluid 
Do  not  add  washer  fluid  when  the  hybrid  system  is  hot  or  operat ing  as 
washer fluid contains alcohol and may catch fire if spilled on  the engine, etc.
NOTICE
■Do not use any fluid other than washer fluid  
Do not use soapy water or engine antifreeze instead of washer f luid.  
Doing so may cause streaking on the vehicle’s painted surfaces,  as well as 
damaging the pump leading to problems of the washer fluid not s praying. 
■ Diluting washer fluid 
Dilute washer fluid with water as necessary.  
Refer to the freezing temperatures listed on the label of the w asher fluid bot- 
tle.