1. Turn the ignition switch to the "ON" position.
2. Push and hold the
button to show
the selection screen.

3. After the selection screen is displayed,
operate the "
" or "
" switch to show the
"Maintenance" item. Then, push the
button.
Maintenance settings
Engine oil settingReplacing key battery
The battery inside the access key fob or transmitter of your Subaru Ascent may
gradually lose charge over time. This can become noticeable under several conditions.
The keyless access system of your Subaru Ascent begins to respond inconsistently
or with delays.
The effective operating ran ...
General diagnostic table Inspection
POWER ASSISTED SYSTEM (POWER STEERING) > General Diagnostic TableINSPECTIONTroublePossible causeCorrective action• Steering effort is heavy in all ranges.• Steering effort is heavy at stand still.• Steering wheel vibrates when turning.1. Tire and wheel• Improper tire out o ...
Dtc p0198 engine oil temperature sensor "a" circuit high
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0198 ENGINE OIL TEMPERATURE SENSOR "A" CIRCUIT HIGHDTC detecting condition:Immediately at fault recognitionTrouble symptom:• Hard to start• Improper idling• Poor driving performanc ...