WARNING
For items (a) through (c), always follow the specifications listed on the tire inflation pressure label located on the driver’s door pillar.
If these requirements are not met, the Subaru Ascent drivetrain may suffer serious damage, and the following aspects may be negatively affected.
Failure to maintain uniform tire specifications can also compromise safety and increase the risk of losing control of your Subaru Ascent.
CAUTION
If you must use a temporary spare tire on your Subaru Ascent, always use the original spare provided with the vehicle. Using a spare tire of a different size or type can cause severe damage to the AWD drivetrain system.

The Subaru Ascent All-Wheel Drive system continuously distributes engine power to all four wheels, enhancing traction and stability in challenging driving conditions such as wet, icy, or uneven surfaces. This system improves acceleration on slippery terrain and provides additional engine braking force when decelerating.
Because of these advanced characteristics, the Subaru Ascent may behave differently compared to conventional two-wheel drive vehicles. Understanding these differences is essential for safe and efficient driving.
Additional note: The Subaru Ascent AWD system is engineered to provide confidence and control across various driving conditions. However, maintaining proper tires, performing regular inspections, and adapting driving behavior to road conditions are essential to fully benefit from its capabilities and ensure long-term reliability.
Periodic inspections
On-road and off-road drivingBasic diagnostic procedure Procedure
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Basic Diagnostic ProcedurePROCEDURENOTE:When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as sensor having an open circuit. Always perform the inspection in direct sunlight.STEPCHECKYESNO1.START INSPECTIONS.1) Prepare ...
Tilt/telescopic steering wheel
WARNING
Never adjust the steering wheel position while driving the Subaru Ascent.
This could lead to loss of vehicle control and serious injury.
Always perform adjustments while the vehicle is stationary.
If the tilt/telescopic lock lever cannot be securely locked, readjust
the s ...
Rear seat reminder
The Subaru Ascent is equipped with a rear seat reminder system designed to help
drivers check for passengers or items left in the rear seats before exiting the
vehicle.
This feature is activated when the rear doors of the Subaru Ascent are opened
and closed prior to driving.
When the ignitio ...