Subaru Ascent Manuals 2023 Ascent Owner's Manual | Page 184

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Warning and indicator lights
If the warning light illuminates , check the engine oil level on a level surface . When the engine oil level is not within the normal range , refill with engine oil . Refer to “ Engine oil ” FP486 . After adding or changing the engine oil , warm up the engine and stop it on a level surface , then start the engine after a lapse of 1 minute or more . Confirm that the warning light has turned off after the engine has started . If the warning light does not turn off after refilling the engine oil , or the light illuminates even though the engine oil level is within the normal range , have the vehicle checked by a SUBARU dealer .
NOTE
. The oil level will be detected by the system just after turning the ignition switch to the “ OFF ” position . If the oil level is below the lower limit when the ignition switch is turned to the “ ON ” position , the engine low oil level warning light will turn on .
. When the vehicle is parked on a steep slope , the engine low oil level warning light may not illuminate even if the oil level is below the lower limit to avoid erroneous lighting .
& Windshield washer fluid warning light
S03AE42
This light illuminates when the fluid level in the windshield washer fluid tank decreases to the lower limit ( approximately 0.6 US qt , 0.6 liters , 0.5 Imp qt ).
& AT OIL TEMP warning light
S03AE07
If this light illuminates when the engine is running , it may indicate that the transmission fluid temperature is too hot .
If the light illuminates while driving , immediately stop the vehicle in a safe place and let the engine idle until the warning light turns off .
! Transmission control system warning
S03AE0701
If the “ AT OIL TEMP ” warning light flashes after the engine has started , it may indicate that the transmission control system is not working properly . Contact your nearest SUBARU dealer for service immediately .
& Rear differential oil temperature warning light ( if equipped )
CAUTION
S03AE27
If the R . DIFF TEMP warning light illuminates , reduce vehicle speed and stop the vehicle in a safe location as soon as possible . Continuing to drive with this light illuminated may damage the rear differential and other parts of the powertrain .
If this light illuminates when the engine is running , it may indicate that the rear differential oil temperature is too hot .
If the light illuminates while driving , reduce vehicle speed and stop the vehicle in the nearest safe location . Park the vehicle for several minutes . After the light turns off , you can start driving .
If the light does not turn off , contact the nearest SUBARU dealer for service .
NOTE
. If the tire pressures are not correct and / or the tires are not all the same size and brand , the rear differential will be heavily loaded when the vehicle is driven , resulting in an abnormally high oil temperature .