The Subaru Ascent includes an intelligent power-saving feature designed to protect both the vehicle battery and the access key fob battery by automatically disabling the keyless access system under certain conditions.
Recovery from power saving mode
The Subaru Ascent keyless access system can be restored from power-saving mode by performing one of the following actions:
Power saving function of access key fob
This feature reduces battery consumption by temporarily disabling signal reception in the Subaru Ascent access key fob.
1. Press the "
"
button twice while holding the "
"
button.

2. Confirm that the LED indicator flashes four times, indicating that power-saving mode has been successfully activated.
While in this mode, the Subaru Ascent keyless access and push-button start functions will be temporarily unavailable.
To exit power-saving mode, simply press any button on the Subaru Ascent access key fob.
Using these Subaru Ascent advanced access and power-saving features ensures better battery efficiency, enhanced security, and reliable everyday operation of your vehicle.
Unlock using PIN Code Access
Disabling keyless access functionRemoval
GLASS/WINDOWS/MIRRORS > Rear Door GlassREMOVAL1. Disconnect the ground cable from battery. NOTE">2. Remove the trim panel - rear door. Door Trim > REMOVAL">3. Remove the sealing cover - rear door. Rear Sealing Cover > REMOVAL">4. Attach the battery ground cable an ...
Stopping engine
Stop the vehicle completely.
Move the select lever to the "P"
position.
Press the push-button ignition switch.
The engine will stop, and the power will be
switched off.
WARNING
Do not touch the push-button
ignition switch during driving.
When the push-button ignition
switch is ...
Read diagnostic trouble code (dtc) Operation
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS) > Read Diagnostic Trouble Code (DTC)OPERATION1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. On «Select Sy ...