Mr Spidy with an attitude.
This place is an excellent resource for help, unlike other websites that claim to have knowlegable folks this site does.
So, if someone reads and doesn't respond it is because they don't know the answer. On other sites, the folks there tend to have no clue and are eager to let others know that they know everything. Do I take offense at your post - yes - because I CARE about the TDR and the "family" here. I have received a LOT of good info here. I received a free wiring harness. I received a very cheap, hard to find, part for my 1996 truck. I, in turn, have tried to help and send things to others.
Please feel free to go to those other sites and good luck finding truthful and helpful answers.
However, if you want to stay, that is fine just please leave the attitude you expressed in your 3rd post on those other sites. If you are willing to do that I'll say welcome aboard.
Now, I took the time to go to the Owners manuals I downloaded and find your answer. (You can download it from the Ram website. If you can't find that, I can post a link). If this is exactly what you tried, then I have no idea. I don't own a tradesman, but I took the time to help do some research.
Starting on page 31 of the 2016 Ram Diesel supplement:
Fuel Filter Life Reset
The cluster will display the “Service Fuel Filter” message
when the fuel filter maintenance life is less than 5%. To
check the remaining fuel filter life, go to the “Fuel Filter
Life” screen in the “Vehicle Info” menu. When this
message appears, dealers should replace both frame
mounted and engine mounted fuel filters.
NOTE: Use the steering wheel EVIC controls for the
following procedure(s)
Vehicles Equipped With Passive Entry
1. Without pressing the brake pedal, push the ENGINE
START/STOP button and cycle the ignition to the
ON/RUN position (do not start the engine.)
2. Push and release the DOWN arrow button to scroll
downward through the main menu to “Vehicle Info”.
3. Push and release the RIGHT arrow button to
access the ”Fuel Filter Life” screen.
4. Push and release the DOWN arrow button to select
“Reset”, then push and release the RIGHT arrow
button to select reset of the Fuel Filter Life to 100%.
5. Push and release the UP arrow button to exit the
EVIC screen.
Vehicles Not Equipped With Passive Entry
1. Without pressing the brake pedal, cycle the ignition to
the ON/RUN position (do not start the engine.)
2. Push and release the DOWN arrow button to scroll
downward through the main menu to “Vehicle Info”.
3. Push and release the RIGHT arrow button to
access the ”Fuel Filter Life” screen.
4. Push and release the DOWN arrow button to select
“Reset”, then push and release the RIGHT arrow
button to select reset of the Fuel Filter Life to 100%.
5. Push and release the UP arrow button to exit the
EVIC screen.
NOTE: If the indicator message illuminates when you
start the vehicle, the Fuel Filter indicator system did not
reset. If necessary, repeat this procedure.