The GMC Sierra, like its sister the Chevrolet Silverado, is a General Motors (GM) full-size pickup truck. Since truck owners haul cargo as well as passengers in their trucks, it’s harder to keep odors from developing. Cleaning the fresh air vents on a regular basis helps rid your truck of odors.
Tools Used: Tools, GM Vehicle Care Odor Eliminator, Cabin air filter (optional)
Clean a Fresh Air Vent
Purchase a bottle of GM Vehicle Care Odor Eliminator. Dealers buy this product by the case and usually stock it for sale to their customers in a 16 oz. spray bottle. It’s not available in stores, but you may be able to find it online.
Confirm that the air fan is off by getting in your truck and turning your Sierra on. Then, make sure there’s ventilation in your truck by opening the front windows. After that, turn your Sierra off.