
497
7 
7-3. Do-it-yourself maintenance
Maintenance and care
WARNING
■When working on the engine  compartment
●Make sure that “IGNITION ON” on the multi-information 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 flu-ids 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.
●Take care because brake fluid can harm your hands or eyes and dam- 
age painted surfaces. If fluid gets  on your hands or in your eyes, flush the affected area with clean water  
immediately. If you still experience  discomfort, consult a doctor.
■When working near the electric cooling fan or radiator grille 
Be sure the power switch is off. 
With the power switch in ON, the  electric cooling fan may automatically start to run if the air conditioning is on  
and/or the coolant temperature is  high. ( P.504)
■Safety glasses 
Wear safety glasses to prevent flying  or falling material, fluid spray, etc.,  
from getting in your eyes.
NOTICE
■If you remove the air cleaner fil- ter 
Driving with the air cleaner filter  removed may cause excessive engine wear due to dirt in the air.
■If the fluid level is low or high 
It is normal for the brake fluid level to  
go down slightly as the brake pads  wear or when the fluid level in the accumulator is high. 
If the reservoir needs frequent refill- ing, it may indicate a serious problem. 

503
7 
7-3. Do-it-yourself maintenance
Maintenance and care
■Engine oil consumption 
A certain amount of engine oil will be  
consumed while driving. In the following  situations, oil consumption may increase, and engine oil may need to be  
refilled in between oil maintenance inter- vals.
●When the engine is new, for example directly after purchasing the vehicle or after replacing the engine
●If low quality oil or oil of an inappropri-ate viscosity is used
●When driving at high engine speeds or with a heavy load, when towing, or  
when driving while accelerating or  decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently through heavy traffic
The coolant level is satisfactory if it  
is between the “FULL” and “LOW”  
lines on the reservoir when the  
hybrid system is cold.
■Engine coolant reservoir 
Reservoir cap 
“FULL” line
WARNING
■Used engine oil
●Used engine oil contains poten- 
tially harmful contaminants which  may cause skin disorders such as inflammation and skin cancer, so  
care should be taken to avoid pro- longed and repeated contact. To remove 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 fil- 
ters in household trash, in sewers  or onto the ground. Call any autho-rized Toyota retailer or Toyota  
authorized repairer, or any reliable  repairer, service station or auto parts store for information concern- 
ing recycling or disposal.
●Do not leave used engine oil within 
the reach of children.
NOTICE
■To prevent serious engine dam- age 
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.
■If oil is spilled on the engine cover 
To prevent the engine cover from  
being damaged, remove any engine  oil from the engine cover as soon as possible using a neutral detergent. Do  
not use an organic solvent such as  brake cleaner.
Checking the coolant
A
B 

579
8 
8-2. Steps to take in an emergency
When trouble arises
A warning message about an operation  
of the brake pedal may be shown while 
the driving support systems such as 
PCS (Pre-Collision system) (if 
equipped) or the dynamic radar cruise 
control with full-speed range (if 
equipped) is operating. If a warning 
message is shown, be sure to deceler-
ate the vehicle or follow an instruction 
shown on the multi-information display.
• A warning message is shown when  
Brake Override System operates.  ( P.301, 574) • A warning message is shown when  
Drive-Start Control or Parking Support  Brake function (if equipped) operates ( P.301, 420). Follow the instructions  
on the multi-information display.
●If a message about an operation of 
the power switch is shown  
An instruction for operation of the power  
switch is shown when the incorrect pro-
cedure for starting the hybrid system is 
performed or the power switch is oper-
ated incorrectly. Follow the instructions 
shown on the multi-information display 
to operate the power switch again.
●If a message about a shift lever opera- 
tion is shown  
To prevent the shift lever from being  
operated incorrectly or the vehicle from 
moving unexpectedly, a message that 
requires shifting the shift lever may be 
shown on the multi-information display. 
In that case, follow the instruction of the 
message and shift the shift lever.
●If a message or image about an  
open/close state of a part or replen- ishment of a consumable is shown  
Confirm the part indicated by the multi- 
information display or a warning light, 
and then perform the coping method 
such as closing the open door or replen-
ishing a consumable.
■If a message that indicates the  
need for visiting any authorized  Toyota retailer or Toyota autho-rized repairer, or any reliable  
repairer is displayed 
The system or part shown on the multi- information display is malfunctioning.  
Have the vehicle inspected by any  authorized Toyota retailer or Toyota authorized repairer, or any reliable  
repairer immediately. 
■If a message that indicates the  need for referring to Owner’s Man-ual is displayed
●If the following messages are shown, follow the instructions, accordingly. 
• “Blind Spot Monitor Unavailable”  ( P.394, 578) • “RCTA Unavailable” ( P.394, 578) 
• “Engine Coolant Temp High”  ( P.611) • “Exhaust Filter Full” ( P.437)
●If the following messages are shown,  there may be a malfunction. Immedi- 
ately stop the vehicle in a safe place  and contact any authorized Toyota retailer or Toyota authorized repairer,  
or any reliable repairer. Continuing to  drive the vehicle may be dangerous.• “Plug-in charging system malfunction” 
• “Hybrid System Malfunction” • “Charging System Malfunction”• “Check Engine” 
• “Hybrid Battery System Malfunction” • “Accelerator System Malfunction”• “Smart Entry & Start System Malfunc- 
tion”
●If the following messages are shown, 
there may be a malfunction. Immedi- ately have the vehicle inspected by any authorized Toyota retailer or  
Toyota authorized repairer, or any reli- able repairer.•“Oil Pressure Low” 
• “Braking Power Low”
●If any of the following messages are 
shown on the multi-information dis- play, the vehicle may have run out of fuel. Stop the vehicle in a safe place  
and, if the fuel level is low, refuel the  

621
9 9-1. Specifications
Vehicle specifications
■Oil capacity (Drain and refill  reference*)
*: The engine oil capacity is a reference quantity to be used when changing the 
engine oil. Warm up the engine and turning off the hybrid system, wait more than 
5 minutes, and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used 
in your Toyota vehicle. Toyota rec-
ommends the use of approved 
“Toyota Genuine Motor Oil”. 
Another motor oil of matching qual-
ity can also be used.
Oil grade:
0W-16:
API grade SN “Resource-Conserv-
ing” or SN PLUS “Resource-Con-
serving” multigrade engine oil
0W-20 and 5W-30:
API grade SL “Energy-Conserving”, 
SM “Energy-Conserving”, SN 
“Resource-Conserving” or SN 
PLUS “Resource-Conserving”; or 
ILSAC multigrade engine oil
Recommended viscosity (SAE):SAE 0W-16 is filled into your 
Toyota vehicle at manufacturing, 
and the best choice for good fuel 
economy and good starting in cold 
weather.
If SAE 0W-16 oil is not available, 
SAE 0W-20 oil may be used. How-
ever, it should be replaced with 
SAE 0W-16 at the next oil change.
Preferred
Temperature range anticipated 
Hybrid battery (traction battery)
TypeLithium-ion battery
Voltage3.7 V/cell
Capacity51 Ah
Quantity96 cells
Nominal voltage355.2 V
Lubrication system
With filter4.5 L (4.8 qt., 4.0 Imp. qt.)
Without filter4.2 L (4.4 qt., 3.7 Imp. qt.)
A
B 

664
GAS STATION INFORMATION
Auxiliary catch lever (P.498)
Power back door switch
* (P.214)
Fuel filler door opener switch (P.343)
Fuel filler door (P.343)
Tire inflation pressure (P.624)
Hood lock release lever (P.498)
*: Vehicles with power back door
Fuel tank capacity (Reference)55 L (14.5 gal., 12.1 Imp.gal.)
Fuel typeUnleaded 
gasoline onlyP.620
Cold tire inflation pressureP.624
Engine oil capacity
(Drain and refill  reference)With filter
Without filter4.5 L (4.8 qt., 4.0 Imp. qt.)
4.2 L (4.4 qt., 3.7 Imp. qt.)
Engine oil typeP.621
A
B
C
D
E
F