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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 5783
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I topped off the def in my 2011 duramax and now it is giving

Customer Question

I topped off the def in my 2011 duramax and now it is giving my a service code and power reduced message
Submitted: 1 year ago.
Category: GM
Expert:  FIXITMAN replied 1 year ago.
Hello, my name is Bobby. Did this happen immediately after you topped it off? How much fluid did you need to put in?