Part and system guide
Cabin Air Filter
The cabin air filter traps dust, pollen, leaves, and debris before air enters the cabin.
What it does
Protects HVAC airflow and helps keep vents cleaner.
Failure signs
- Weak airflow
- Musty smell from AC
- Noisy blower
- Dusty vents
- Poor defogging
Maintenance notes
- Replace at the interval recommended for the vehicle and driving conditions.
- Check for leaves or rodent debris if airflow is poor.
- A filter will not fix refrigerant or heater core faults.