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 coolantBSD/RCTA
The Subaru Ascent BSD/RCTA system integrates advanced rear corner radar technology,
combining Blind Spot Detection and Rear Cross Traffic Alert to enhance driver awareness
in critical situations.
These intelligent safety features continuously monitor the rear and side zones
of the Subaru Asce ...
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