The three throttle press works sometimes but its not the actual way to reset the oil life on our trucks. In your owners manual pages 301 and 302 is the proper procedure. Im copy and pasting it below.
Oil Life Reset
Your vehicle is equipped with an engine oil change indicator system. The “Oil Change Required” message will display in the EVIC after a single chime has sounded, to indicate the next scheduled oil change interval. The engine oil change indicator system is duty cycle based, which means the engine oil change interval may fluctu- ate, dependent upon your personal driving style.
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 place 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 ”Vehicle Info” screen, then scroll UP or DOWN to select “Oil Life.”
4. Push and hold the RIGHT arrow button to select “Reset,” then push and release the Right arrow button to select “NO” or “YES” to reset the Oil Life to 100%.
5. Push and release the Up arrow button to exit the EVIC screen.
Vehicles Not Equipped With Passive Entry
1. Without depressing 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 “Vehicle Info” screen then scroll UP or DOWN to select “Oil Life.”
4. Push and hold the RIGHT arrow button to select “Reset,” then select “NO” or “YES” by pushing the RIGHT arrow then push the RIGHT arrow button to select reset of the Oil 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 Oil Life indicator system did not reset. If necessary, repeat this procedure.