SFN-20251009A Maintenance Monitor Reset B6.7

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TICO Document #: SFN-20251009A Maintenance Monitor Reset B6.7

Description of Procedure: Reset the maintenance monitor.

Instructions:

  1. Park vehicle on flat surface, apply parking brake, and chock wheels. Proceed with the “Lock Out, Tag Out” policy.

After Lubricating Oil Change

  • If the diagnostics are enabled, the CHECK ENGINE lamp will appear when the lubricating oil change interval has been reached

  • Use the following steps to reset the CHECK ENGINE lamp AFTER changing the lubricating oil.

To determine the engines model year, reference the emission year (1) on the engine data plate. Another reference is the first digit of the Family (2) on the engine dataplate. M=2021, N=2022, P=2023, R=2024

For Model Year 2021 through Model Year 2023, the maintenance monitor can be reset using an electronic service tool, or by following steps 1 through 10. Steps 3 through 8 must be done within 12 seconds for the maintenance monitor to be reset. The diagnostic switch must be in the OFF position, and the vehicle air system must be fully charged.

  1. Turn the keyswitch ON (engine must not be operating).

  1. Verify brakes are released (service and trailer brakes).

  1. Hold throttle pedal at 100 percent throttle.

  1. Press and release service brake three times.

  1. Release throttle pedal.

  1. Depress and hold throttle pedal at 100 percent throttle again.

  1. Press and release service brake three more times.

  1. Release throttle pedal.

  1. The light will flash three times.

  1. Turn the keyswitch OFF.

As soon as the throttle pedal is released (step 8), the engine protection lamp will flash three quick flashes. This means the reset command has been received, and the maintenance monitor will reset its distance (miles or kilometers), and time (hours) to zero the next time the keyswitch is turned OFF (Step 10).

Note: If the engine protection lamp does not flash three times after the throttle pedal is released on Step 8 above, the maintenance monitor reset sequence must be performed again.

For Model Year 2024 and newer, the maintenance monitor can be rest using an electronic service tool, or by following steps 1 through 3. Steps 1 through 3 must be done within 10 seconds for the maintenance monitor to be reset.

  1. Turn keyswitch to ON position (do not start engine).

  1. Fully depress and release the throttle pedal 3 times within 10 seconds from key ON (brake pedal not pressed).

  1. Turn keyswitch to OFF position.

  1. Remove “Lock Out, Tag Out” plaque.

  1. Return vehicle to service.