How to turn on mirror defrosters on a Subaru Crosstrek?
To turn on mirror defrosters in a Crosstrek, switch on the rear window defroster; in most trims with heated exterior mirrors, the mirrors heat automatically once the rear defroster is active.
What you need to know about Crosstrek mirror heating
Heated exterior mirrors are common on many Crosstrek trims, but not every model includes them. In most generations, there is no separate mirror heater switch; turning on the rear window defroster activates the mirrors if the feature is installed on your vehicle. If your Crosstrek has heated mirrors, you can expect the glass to clear within a few moments after the rear defroster is turned on. If your model lacks heated mirrors, there is nothing to toggle for the mirrors themselves.
How to activate the mirror defrosters
Use the rear window defroster control on the center console. The steps below describe the typical setup on modern Crosstreks.
- Start the engine or switch the ignition to the accessory position so the climate controls have power.
- Locate the rear window defroster button on the center console; it is usually marked with a rectangle and three wavy lines.
- Press the rear defroster button to turn it on. A small indicator light on the button or near the gauge cluster should illuminate.
- Allow a moment for the heated mirrors to warm up as the rear defroster runs. If your vehicle is equipped with heated mirrors, they will begin to clear as they heat.
- To turn off, press the rear defroster button again. The mirrors will gradually cool once the system turns off.
Note: Some Crosstrek models or model years may include a separate switch for mirror heating near the climate controls or on the mirror housing itself. If you’re unsure whether your exact vehicle has heated mirrors, check the owner’s manual or the feature list for your trim.
Model-year and trim variations
In practice, newer Crosstrek models (especially higher trims) often include heated exterior mirrors, while base trims may omit them. The standard activation method remains the rear defroster, but always verify with your specific year and trim since features can change with updates or region.
Summary
For most Subaru Crosstrek models, turning on the rear window defroster also activates the mirror heaters if your trim supports heated mirrors. If the mirrors do not clear, confirm that your vehicle has heated mirrors and consult the owner's manual or a Subaru dealer for precise instructions for your exact year and trim.
