Webdec 19, 2016 · triggered a def warning, see dealer message. They tested, said it was bad def, and charged for the drain, clean and refill. I bought a tester right after that, and. Weboct 30, 2023 · i threw a p206a code. I have driven the truck 3 or 4 times since the check engine light came on. Every time i have also gotten the service def system, see. Webjan 16, 2022 · for example, if the tune turns off the def system, the cts3 can no longer read % def, the def command or the def tank level gauge. The tune on my 2016. Web5 days ago · a common message is “service def system see dealer,” which can indicate issues such as an overfilled def tank or dirty def fluid. Check the def gauge regularly.
Service Def System See Dealer
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