The seat heater system in the Subaru Ascent operates when the ignition switch is in the "ON" position, providing additional comfort during cold weather conditions.
CAUTION
- Do not place heavy, rigid, or sharp objects on the seats of the Subaru Ascent, and avoid piercing the seat surface with items such as pins or needles, as this may damage the heating elements.
- Individuals with sensitive skin may experience mild burns even at low
temperatures when using the seat heater for extended periods.
Always inform passengers about proper use of the seat heater in the Subaru Ascent to prevent discomfort or injury.
- Avoid placing insulating materials such as blankets or cushions on the seats, as this may cause the seat heater to overheat.
- Turn off the seat heater once sufficient warmth has been achieved or before leaving the Subaru Ascent.
NOTE
- Using the seat heater in the Subaru Ascent for extended periods while the engine is not running may lead to battery discharge.
- For prolonged use, it is recommended to select the MID or LOW setting.
Use the HIGH setting only for rapid heating at the beginning of operation.
Front seat heater
In the Subaru Ascent, the front seat heater can be adjusted conveniently through the center information display, allowing precise control of temperature levels.
NOTE
The front seat heater function in the Subaru Ascent cannot be used simultaneously with the seat ventilation system (if equipped).
Second-row seat heater
CAUTION
Do not open or close the center console lid while operating the second-row seat heater switch in the Subaru Ascent, as there is a risk of finger injury.

Second-row seat heater switch
- Right side
- Indicator lights
- Left side
Press the second-row seat heater switch in the Subaru Ascent to activate the heating function.
Each press of the switch changes the mode as follows.

Two indicator lights illuminate in HIGH mode, while one indicator light indicates LOW mode. When the system is turned OFF, all indicator lights will go out.
NOTE
Only the front seat heater settings in the Subaru Ascent retain their previous state after the vehicle is restarted. The second-row seat heater resets automatically.
Related manual topics
Replacement of brake pad
The disc brake system of your Subaru Ascent is equipped with audible wear indicators
integrated into the brake pads. As the pads approach their service limit, these
indicators produce a distinct scraping or squealing sound when the brake pedal is
applied.
If you hear this sound consistent ...
Select lever
Select lever positions
Select lever button
: With the brake pedal depressed, shift while pressing the select lever button in.
...
