sc800
Active VIP Member
Not completely true, my def was full but it still put me in limp mode and I had to limp into swift current at 8mph on a Saturday with no mechanics working at the dealership and then rent a vehicle to continue on our trip for the weekend. They had to reset the computer/flash it and then two weeks later did it again. Ended up being a faulty sensor or solenoid. Truck had 40,000 km and now has 59,000 and has not done it again.Well if you don't fill your truck with fuel its gonna leave you at a snails pace as well. Fill the def tank and you won't have a problem. I put 20L into it at a time and it lasts months.