The cabin air filter on a GMC Sierra 1500 is located behind the glove box on the passenger side of the dash. Access typically requires lowering the glove box and removing the filter housing cover.
In most model years from around 2014 to present, this arrangement is standard, though some trims or years may require removing a small panel inside the glove box area. Replacing the filter is a straightforward DIY task that helps maintain interior air quality and HVAC performance.
Location and access
The filter sits in a rectangular housing just behind the glove box. You may need to remove a small plastic panel or simply drop the glove box to gain access to the housing. When you replace the filter, align the airflow direction arrow on the new filter toward the blower motor.
Below are the general steps to replace the cabin air filter.
- Open the glove box and remove its contents. If your Sierra uses dampers or stops, detach or release them so the box can drop freely.
- Squeeze the sides of the glove box to release its stops and lower the box down to expose the area behind it.
- Locate and remove the filter housing cover behind the glove box by unhooking clips or screws, depending on your year/trim.
- Take out the old cabin air filter and inspect the slot for debris or excessive dirt.
- Insert the new filter with the arrows pointing toward the blower motor, ensuring it sits evenly in the housing.
- Reattach the filter housing cover, lift the glove box back up, and reconnect any stops/damper you removed.
- Close the glove box and run the HVAC system briefly to confirm proper airflow.
After completing the replacement, confirm that the glove box latches securely and that there are no unusual sounds from the dash area when the HVAC is on.
Notes by model year and trim
Most Sierra 1500s from recent years share the behind-the-glove-box location, but some trims or older models may require a slightly different panel removal. If you have difficulty locating the filter, consult your owner’s manual or a service guide specific to your year and trim.
Summary
The cabin air filter on a GMC Sierra 1500 is found behind the passenger-side glove box. Access it by lowering the glove box, removing the filter housing cover, replacing the filter with the correct orientation, and reassembling. Regular replacement helps maintain clean interior air and effective HVAC performance.