Replacing 3500 Ram Diesel Fuel Filters: Step-By-Step Guide

Resetting the fuel filter on a Ram 3500 diesel truck can be a tricky process. While some people have reported success by following the instructions in the owner's manual or watching YouTube videos, others have found that these methods do not work for them. In this case, it might be necessary to take the truck to a dealership or a service manager to have them reset the fuel filter using their computer. However, there are some things you can try before resorting to this option. One suggestion is to unhook the battery cables for about 10 minutes to reboot the system and then try resetting. Another method that has worked for some people is to go to the fuel filter life screen, push the right arrow to reset, and then quickly tap the right arrow button when Yes is highlighted. It's important to note that the ignition should be on and the engine off during this process.

How to reset/change fuel filters in 3500 Ram Diesel

Resetting the fuel filter indicator

Firstly, locate the fuel filter life screen or the fuel filter percentage on the dash. Ensure that the ignition is on, but the engine is off. From the fuel filter life screen, use the arrow buttons to navigate to the reset option. In some models, you may need to press and hold the right arrow button to access the reset option. Once you have selected "Reset", you may be asked to confirm the action by selecting "Yes" or "OK".

At this point, different methods have been suggested. One source recommends pressing and holding the "OK" button to confirm, while releasing it quickly may also be effective. Another suggestion is to use the acceleration button for cruise control after selecting "Yes". Alternatively, you may simply need to press the right arrow button again, but this time only tapping it quickly rather than holding it down. It is worth noting that this step may require multiple attempts, as sometimes the indicator only resets partially or not at all.

If you are still unable to reset the fuel filter indicator, you may need to disconnect the battery cables for about 10 minutes to reboot the system. This has been reported to help with electrical glitches. As a last resort, you may need to take your vehicle to the dealer to have them reset the indicator using their computer system.

Resetting the fuel filter life

For the 2014 RAM 3500 6.7, scroll to the "Vehicle Info" section on the dashboard. From there, scroll to "Fuel Filter Life" and press and hold the right arrow button to select "Reset". When asked to confirm, scroll down to "Yes" and then press the "+" button for cruise control.

For the 2016 RAM 3500 6.7, go to the fuel filter life screen. Push the right arrow button to reset. If "Cancel" is shown, push the down arrow button until "Ok" is displayed. Then, push the right arrow button three times in less than 10 seconds, similar to when resetting the oil life with the accelerator pedal.

For the 2021 RAM 3500, go to the fuel filter percentage on the dashboard (not the message). Ensure the ignition is on and the engine is off. Then, push the right arrow button and you should have the option to reset.

It is important to note that the process may vary slightly depending on the specific model and features of your RAM 3500 diesel vehicle. If these steps do not work, you may need to consult a dealer or refer to the owner's manual for more specific instructions.

Resetting the service fuel filter message

For the 2013-2018 4th Gen Ram 6.7L Cummins, with the engine off, turn the key to the 'On' position. On the fuel filter life indicator screen, hold the right arrow button, then use the down arrow to select 'Reset'. Push and quickly release the right arrow to reset. It often takes multiple tries to reset fully, and sometimes it will only reset partially, just the miles but not the percentage, and many will only reset the percentage to 99%. Keep trying until it resets both miles and percentage.

For the 2014 Ram 3500 6.7, scroll to the vehicle info screen, then scroll to fuel filter life, press and hold the right arrow to select reset, when asked to confirm Yes or No, scroll down to Yes, then press the (+ acceleration) button for cruise control.

For the 2016 Ram 3500 6.7, scroll to the vehicle info screen, then scroll to fuel filter life, press and hold the right arrow to select reset, when asked to confirm Yes or No, scroll down to Yes, then press the right arrow button three times in less than 10 seconds.

For the 2021 Ram 3500 Longhorn Limited, go to the fuel filter percentage on the dash (not the message), then push the right arrow and you should have the option to reset. This must be done with the ignition on and the engine off.

If these steps do not work, you may need to take your vehicle to a dealer to have the service fuel filter message reset.

Resetting the oil and fuel filter service lights

For 2013-2018 4th Gen Ram 6.7L Cummins models:

• Turn the engine off.
• Turn the key to the 'On' position.
• Locate the fuel filter life indicator screen.
• Hold the right arrow button.
• Use the down arrow button to select 'Reset'.
• Quickly press and release the right arrow button to confirm the reset.
• Note that it may take multiple attempts to fully reset the indicator. Sometimes, only the miles or the percentage will reset. Keep trying until both the miles and the percentage are reset to 99% or 100%.

For 2014-2016 Ram 3500 6.7 models:

• Scroll to the Vehicle Info section on your dashboard.
• Scroll to the Fuel Filter Life section.
• Press and hold the right arrow button to select 'Reset'.
• When asked to confirm, scroll down to 'Yes'.
• Press the (+) acceleration button for cruise control to finalise the reset.
• Note that some users have reported that simply scrolling to 'Yes' and then quickly tapping the right arrow button was enough to reset the fuel filter life.

For 2019-2021 Ram 3500 models:

• Ensure the ignition is on and the engine is off.
• Locate the fuel filter percentage on the dashboard (not the service message).
• Press the right arrow button.
• You should now see an option to reset.
• Follow the on-screen prompts to finalise the reset.

If you are unable to reset the fuel filter service light using the methods above, you may need to take your vehicle to a dealership or refer to the owner's manual for further instructions.

Resetting the oil life indicator

First, locate the fuel filter life screen on your vehicle's information page. This screen will display the current status of your fuel filter, including the percentage of life remaining. To reset the indicator, you will need to use the arrow buttons to navigate and make selections.

With the engine off, turn the key to the 'On' position. This will power up the dashboard and allow you to access the vehicle's settings. Using the arrow buttons, navigate to the fuel filter life screen. Once you are on this screen, you will see options to reset the indicator.

On the fuel filter life screen, use the right arrow button to select the "Reset" option. You may need to press and hold the right arrow button to access this menu. It is important to note that the exact button to press may vary depending on your vehicle's model and year. Some models may require pressing the "OK" or "+" button instead.

After selecting "Reset," you will be asked to confirm the action. Use the arrow buttons to scroll down to the "Yes" option and select it. Again, you may need to press and hold the arrow button to make the selection. In some cases, a quick tap on the button may be more effective. If the reset is successful, the indicator should display 100%.

If you are having trouble resetting the indicator, there are a few additional steps you can try. First, ensure that you are performing the reset with the engine off, as this is a common requirement for successful resetting. If that does not work, you can try unhooking the battery cables for about 10 minutes to reboot the system, and then attempt the reset again.

If you are still unable to reset the oil life indicator, you may need to take your vehicle to the dealer or a service centre for further assistance. They will have the necessary tools and expertise to reset the indicator and ensure that your vehicle's systems are functioning correctly.

Frequently asked questions