2017 RAM 1500 Cabin Air Filter: Location, Replacement, and Maintenance Guide​

2025-12-10

Replacing the cabin air filter in your 2017 RAM 1500 is a simple, sub-15-minute maintenance task that directly impacts your health, driving comfort, and the performance of your vehicle's climate control system. Located behind the glove box, a fresh filter cleans the air entering the cabin by trapping dust, pollen, pollutants, and other airborne contaminants. Neglecting this inexpensive part can lead to reduced airflow, musty odors, increased strain on your HVAC blower motor, and for allergy sufferers, a miserable driving experience. This comprehensive guide provides the exact steps for location, inspection, and replacement, along with crucial maintenance advice specific to the 2017 model year.

Understanding the Cabin Air Filter's Role in Your 2017 RAM 1500

The cabin air filter, often called a microfilter, is your first line of defense against external air pollution entering the vehicle's interior. All air that flows through your heating, ventilation, and air conditioning (HVAC) system passes through this filter before reaching you and your passengers. In a 2017 RAM 1500, its primary job is to capture and hold particulate matter. This is especially important for truck owners who may drive on unpaved roads, in agricultural areas, or in regions with high pollen counts or urban pollution. A clean filter ensures maximum airflow, allowing the system to heat and cool the cabin efficiently. When the filter becomes clogged—a common occurrence given its job—the HVAC fan must work harder to push air through the obstructed media, potentially leading to weaker airflow from the vents, unusual whistling noises, and even premature blower motor wear. Furthermore, a dirty, damp filter becomes a breeding ground for mold and mildew, which is the direct cause of that unpleasant, musty smell when you first turn on the system.

Exact Location of the Filter Housing in the 2017 Model

For the 2017 RAM 1500, the cabin air filter is consistently located behind the glove box. This centralized position allows the filter to clean air from the fresh air intake, typically at the base of the windshield. To access it, you do not need any tools for the initial steps. Begin by opening the glove box door. Look for a stopper arm or damper on the right side of the glove box compartment; gently disengage it by flexing the end of the arm inward to release it from its retaining post. Next, you will see the glove box's limit straps or cords on each side. By squeezing the sides of the glove box inward near these attachment points, you can clear the stops and lower the glove box fully, allowing it to hang freely by its straps. This reveals the rear of the glove box assembly and, mounted to the HVAC housing, a rectangular black plastic cover. This cover is the filter access door. It is secured by either two plastic quarter-turn fasteners or simple retaining clips on its sides. This is the only compartment you need to open to service the filter.

Step-by-Step Removal and Installation Procedure

Once you have clear access to the filter housing cover, the process is straightforward. Turn the fasteners counterclockwise (usually a 90-degree turn) or release the side clips to detach the cover. Pull the cover toward you. You will now see the edge of the existing cabin air filter. Important: Note the directional arrows printed on the frame of the old filter. These arrows indicate the correct direction of airflow, which is ​crucial​ for proper operation. The arrows should point ​DOWNWARD, toward the floor of the vehicle, or in the direction of the HVAC blower motor. This is a non-negotiable step; installing the filter backward severely reduces its effectiveness and airflow.

Gently pull the old filter straight out. Take this opportunity to inspect the compartment for any debris like leaves or twigs that may have gotten past the intake; a quick vacuum or wipe with a cloth is a good idea. Before inserting the new filter, compare it to the old one to confirm it is the correct part and match the size. Align the new filter so that its airflow arrows point in the same direction as the old one—downward. Carefully slide it into the housing slot, taking care not to bend or crush the filter's pleats. Ensure it sits flat and even within the track. Reattach the plastic access cover, securing the fasteners by turning them clockwise or snapping the clips firmly into place. Finally, lift the glove box back into position, re-engage the side stops, and reattach the stopper arm to its post. Close the glove box door. The replacement is complete.

Choosing the Correct Replacement Filter

The 2017 RAM 1500 uses a standard-sized cabin air filter. While the OEM part is always a guaranteed fit, many high-quality aftermarket brands offer exact fits. The main choice you will face is the type of filtering media. Standard particulate filters are effective for dust and pollen. For enhanced performance, consider an activated carbon filter. These filters contain a layer of activated charcoal embedded in the media, which is excellent at absorbing and neutralizing odors, fumes, and gaseous pollutants like ozone and sulfur dioxide. This is a worthwhile upgrade for drivers in heavy traffic or industrial areas. When purchasing, always confirm the part is for a 2017 RAM 1500, as designs can change between model years. Reputable auto parts stores will have a lookup tool to confirm compatibility, and you can also use your Vehicle Identification Number (VIN) for an exact match when ordering.

Recommended Maintenance Schedule and Inspection Signs

Ram's official maintenance schedule for the 2017 1500 typically recommends inspecting the cabin air filter every 20,000 to 25,000 miles, but this is a maximum interval under ideal conditions. The actual replacement frequency is highly dependent on your driving environment. A truck driven regularly on dirt or gravel roads, in arid/dusty climates, or during heavy pollen seasons may require a new filter every 10,000 to 15,000 miles. Rather than relying solely on mileage, be aware of the common symptoms of a clogged filter: noticeably reduced airflow from the dash vents even at higher fan speeds, persistent musty or sour odors from the vents, increased noise or whistling from the blower fan, or more frequent window fogging because the system cannot effectively dehumidify the air. A simple visual inspection during an oil change is prudent. If the filter appears dark gray, caked with dirt, or has visible debris, it's time for a change.

Why This Task is Critical for Health and System Longevity

Beyond comfort, a clean cabin air filter is a health and preservation item. For occupants with allergies, asthma, or respiratory sensitivities, it is the primary barrier against airborne irritants. A dirty filter cannot perform this function, allowing particles to circulate inside the closed cabin. From a vehicle systems perspective, a restricted filter forces the HVAC blower motor to work under a constant load, similar to trying to breathe through a clogged straw. This can lead to the motor overheating and failing prematurely—a repair that is significantly more costly and labor-intensive than a 20-40 filter. Furthermore, a clean filter allows the air conditioning evaporator core to breathe freely. When airflow is blocked, moisture can freeze on the cold evaporator coils, leading to a complete loss of cooling and potential system damage. Regular filter changes are a minor investment that protects a major system.

Addressing Common Questions and Concerns

Some owners report difficulty lowering the glove box. The key is applying firm, even pressure when squeezing the sides to clear the stops—do not force it downward without squeezing, as this can break the glove box liner. If the airflow arrows are worn off the old filter, remember that in nearly all vehicles, the direction of airflow is from the outside intake (top/front) toward the interior blower motor (bottom/rear), so arrows point down and toward the rear of the vehicle. If you install it backward by accident, the system will still work, but efficiency will be severely compromised; simply redo the step. For those concerned about capability, this task requires no mechanical skill, only careful attention to direction. It is universally regarded as one of the easiest and most cost-effective DIY maintenance jobs on any modern vehicle, including the 2017 RAM 1500.

Conclusion: A Non-Negotiable Element of Basic Care

Servicing the cabin air filter in your 2017 RAM 1500 is an essential component of routine vehicle ownership that safeguards interior air quality, ensures optimal climate control performance, and protects the longevity of expensive HVAC components. With no tools required beyond your hands and a process that takes less time than a standard oil change, there is no reason to defer this maintenance. By checking the filter annually or with seasonal changes and replacing it at least every two years or 20,000-25,000 miles—more often in severe conditions—you guarantee that the air you breathe inside your truck is clean and that your HVAC system operates as designed. Keep a spare filter in your garage; your comfort and your truck’s reliability will benefit directly from this simple act of care.