WARNING
Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray of boiling hot coolant when the cap is removed.

Check the coolant level at each fuel stop.
1. Check the coolant level on the outside of the reservoir while the engine is cool.
2. If the level is close to or lower than the "LOW" level mark, add coolant up to the "FULL" level mark. If the reserve tank is empty, remove the radiator cap and refill coolant up to just below the filler neck as shown in the following illustration.


3. After refilling the reserve tank and the radiator, reinstall the cap and check that the rubber gaskets inside the radiator cap are in the proper position.
CAUTION
Engine coolant
Changing the coolantDtc b1623 side airbag sensor rh initialization error
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1623 SIDE AIRBAG SENSOR RH INITIALIZATION ERRORDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Open or short circuit in harness of side sensor bus (RH)• Side airbag sensor (RH) an ...
Tire pressure monitoring system (TPMS) (if equipped)
The tire pressure monitoring system provides
the driver with a warning message
by sending a signal from a sensor that is
installed in each wheel when tire pressure
is severely low. The tire pressure monitoring
system will activate only when the
vehicle is driven. Also, this system may
not rea ...
Trailer towing tips
CAUTION
On Subaru Ascent models equipped with BSD (Blind Spot Detection) and
RCTA (Rear Cross Traffic Alert), it is recommended to deactivate the "Rear Vehicle
Detection (BSD/RCTA)" function when towing a trailer. The presence of the trailer
may interfere with radar signals, r ...