2023 SUBARU SOLTERRA radiator

5458-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises1 Stop the vehicle in a safe
place and turn off the air con-
ditioning system.
2 Leave the EV system operat-
ing and carefully lift the hood.
3 Check if the cooling fan is
operating.
If the fan is operating:
Wait until the “EV System
overheated Output power
reduced” message disap-
WARNING
■When replacing the 12-volt
battery
●When the vent plug is close to
the hold down cl amp, the bat-
tery fluid (acid) may leak.
●For information regarding bat-
tery replacement, contact your
Toyota dealer.
NOTICE
■When handling jumper cables
When connecting the jumper
cables, ensure that they do not
become entangled in the cooling
fan.
If your vehicle over-
heats
When “EV System over-
heated Output power
reduced” is shown on the
multi-information display,
your vehicle may be over-
heating.
NOTICE
■Cooling system coolant
The radiator coolant is exclusive
for radiator usage. Damage may
occur when water or any other
type of coolant is used, so never
use any other fluid. When there is
no “Toyota Genuine Traction Bat-
tery Coolant”, immediately contact
your Toyota dealer.
Correction procedures

5468-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
pears and then stop the EV
system. If the message does
not disappear, call your Toy-
ota dealer.
If the fan is not operating:
Stop the EV system immedi-
ately and call your Toyota
dealer.
4 After the EV system has
cooled down, inspect the
hoses and radiator core (radi-
ator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately cont act your Toyota
dealer.
5 The coolant level is satisfac-
tory if it is between the “MAX”
and “MIN” lines on the reser-
voir. Reservoir
“MAX” line
“MIN” line
6 If the coolant is insufficient,
replenish with “Toyota Genu-
ine Traction Battery Coolant”.
If you don’t have “Toyota Genuine
Traction Battery Coolant”, contact
your Toyota dealer.
1Remove the bolt.
2 Open the reservoir cap
Have the vehicle inspected at
the nearest your Toyota dealer.
WARNING
■To prevent an accident or
injury when inspecting under
the hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The motor compartment
may be very hot.

5478-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
1 Stop the EV system. Set the
parking brake and shift the
shift position to P.
2 Remove the mud, snow or
sand from around the stuck
tire.
3 Place wood, stones or some
other material under the front
wheels to help provide trac-
tion.
4 Restart the EV system
5 Shift the shift position to D or
R and release the parking
brake. Then, while exercising
caution, depress the acceler-
ator pedal.
■When it is difficult to free the
vehicle
Press to turn off TRAC.
(  P.388)
WARNING
●Keep hands and clothing (espe-
cially a tie, a scarf or a muffler)
away from the fan. Failure to do
so may cause the hands or
clothing to be caught, resulting
in serious injury.
●Do not loosen the coolant reser-
voir cap while the EV system
and radiator are hot. High tem-
perature steam or coolant could
spray out.
NOTICE
■When adding coolant
Add coolant slowly after the EV
system has cooled down suffi-
ciently. Adding cool coolant to a
hot EV system too quickly can
cause damage to the EV system.
■To prevent damage to the
cooling system
Observe the following precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust, etc.).
●Do not use water or any other
coolant when refilling coolant.
Also, do not use any additive
agents for the coolant.
If the vehicle becomes
stuck
Carry out the following pro-
cedures if the tires spin or
the vehicle becomes stuck
in mud, dirt or snow:
Recovering procedure

5539-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
NOTICE
■Cooling system coolant
In order to ensure maximum perfor mance of the traction battery cooling
system and limit risks of battery short-circuit and other damag e to your
vehicle, Toyota recommends using “Toyota Genuine Traction Battery
Coolant” or similar high-quality ethylene glycol-based, low electric con-
ductivity coolant, non-amine and non-borate coolant with azole additives.
Toyota cannot guarantee that th e use of a product other than “Toyota
Genuine Traction Battery Cool ant” will prevent risks of battery short-circuit
or other damage.
Never use water as it will cause damage.
Do not reuse coolant that has been removed from the radiator.
Heater system
Capacity4.2 qt. (4.0 L, 3.5 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol- based non-silicate , non-amine, non-
nitrite, and non-borate coolant with long-
life hybrid organic acid technology
Do not use plain water alone.
Electrical system ( 12-volt battery)
Specific voltage reading at
68°F (20°C):
12.0 V or More
In the case the voltage is less than stan-
dard, charge battery.
(Voltage is checked 20 minutes after the
motor and all lights turned off.)
Charging rates5 A max.

606Alphabetical Index
Owners Manual_USA_M42C01_en
Power control unit coolant Checking .............................. 465
Preparing and c hecking before
winter.................................. 393
Radiator................................ 466
Power meter ............................ 152
Power outlets .......................... 428
Power sources .......................... 96
Power steering (Electric Power Steering system) .................. 387
Power steering (Electric power steering system)Warning light ........................ 515
Power switch .......................... 231 Auto power off function ........ 235
Changing the power switch modes ................................ 234
If your vehicle has to be stopped in an emergency................. 505
Starting the EV system......... 231
Power windows Catch protection function ..... 212
Door lock linked window opera-tion ..................................... 213
Jam protection function ........ 212
Operation ............................. 212
Window lock switch .............. 214
Pre-Collision System (PCS)... 265 Enabling/disabling the system........................................... 275
Function ............................... 265
Warning light ........................ 518
R
Radar cruise control .............. 296
Radar cruise control (dynamic radar cruise control) ............ 288
Radiant heaters ...................... 411
RCD (Rear Camera Detection) ............................................... 328Enabling/disabling the system ........................................... 329 RCTA (Rear Cross Traffic Alert)
...............................................322Enabling/disabling the system ...........................................323
Rear Camera Detection (RCD) ...............................................328Enabling/disabling the system ...........................................329
Rear Cross Traffic Alert (RCTA) ...............................................322Enabling/disabling the system ...........................................323
Rear eAxle Fluid......................................554
Rear electric motor (traction motor)Specification .........................552
Rear fog light Replacing light bulbs ............502
Rear interior lights..................416
Rear seat Folding down the rear seatbacks...........................................194
Rear seats ...............................193 Adjustment ...........................193
Head restraints .....................196
Seat heaters ......................... 411
Rear side marker lights Light switch...........................248
Rear turn signal lights Replacing light bulbs ............502
Turn signal lever ...................242
Rear view mirror Digital Rear-view Mirror ........201
Inside rear view mirror ..........200
Outside rear view mirrors .....210
Rear window defogger ...........404
Regeneration Boost Switch ...240
Regenerative braking ...............73 Warning lights .......................513
Remote Air Conditioning System ...............................................409