Coolant temperature at or above 150°F Parking brake set Transmission in neutral Cruise control off Press and release the clutch pedal twice Press and release the parking brake twice Locate the regen button on your dash panel (usually has a cover over it that you flip up to access the button), press and hold the button for about 10 seconds or until the RPMs rise and the instrument cluster verifies that it is now in regen Once the parked regen is completed, the RPMs will come down and and the “REGEN IN PROGRESS” message will disappear, there will be a high exhaust temperature symbol left on the dash, leave the truck running for about 5 minutes to allow the exhaust system to cool off properly
