To deactivate the Subaru Ascent alarm system, perform one of the following procedures:
After disarming, the Subaru Ascent security indicator light will change its flashing pattern to a slower interval (approximately once every 3 seconds), indicating that the system is no longer active.
Emergency disarming
For Subaru Ascent models equipped with keyless access and push-button start: If the system cannot be disarmed using the access key fob (for example, due to battery failure or damage), refer to the procedure in the "Switching power status" section.
For Subaru Ascent models without keyless access: The alarm system can be deactivated by inserting a registered key and turning the ignition switch from the "LOCK"/"OFF" position to the "ON" position.
NOTE
If the Subaru Ascent key fob or remote transmitter battery becomes weak, replace it immediately to ensure reliable operation of the alarm system and prevent unexpected issues.
Understanding how to properly arm and disarm the Subaru Ascent alarm system enhances vehicle security and ensures dependable protection in everyday situations.
Arming the system
Alarm system settingSRS airbag system warning light
WARNING
If the SRS airbag system warning light in your Subaru Ascent shows any abnormal
behavior, immediately stop the vehicle in a safe location and contact an authorized
SUBARU dealer for inspection. Failure to properly diagnose and repair the system
may result in the seatbelt pretensioners ...
Inspection
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Rear Oxygen SensorINSPECTION1. Check that the rear oxygen sensor has no deformation, cracks or other damages.2. Measure the resistance between rear oxygen sensor terminals.Terminal No.Standard1 and 25.6+1.7 −0.6 ? (when 20°C (68°F) ...
Installation
AIRBAG SYSTEM > Curtain Airbag ModuleINSTALLATIONCAUTION:• Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">• When installing the curtain airbag ...