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DEF reset performed at dealership, but range calibration
DEF reset performed at dealership, but range calibration still shows 30%, then dropped to 29% Have not driven 200 miles yet, but I would have assumed system should have cleared. 100% Full DEF in tank,… read more
Daniel Chaidez
Daniel Chaidez
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DEF message in DIC does not reset after adding more fluid.
DEF message in DIC does not reset after adding more fluid. 2015 GMC 2500HD … read more
Gm Tech (Cam)
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Im stuck in 6 mph even when i filled my def tank. 2017 chevy
im stck on 6 mph limit and refilled my def and wont reset… read more
Andrew
Andrew
Master Diagnostic Technician
Associate of Occupational in Automotive Technology
338 satisfied customers
Just looking at these issues with the DEF fluid re-set on my
Just looking at these issues with the DEF fluid re-set on my 2019 GMC 3500. Is the fix removal the cable for the neg battery terminal and touching it the pos terminal? Haven't had the problem yet. … read more
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Daniel Chaidez
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I filled the DEF tank on my 2015 Chevrolet 2500 HD High
i filled the DEF tank on my 2015 Chevrolet 2500 HD High Country, VIN #*****************, but the DEF gauge still shows 1/4 full. How do I reset the gauge. I'm leaving on a long trip and would like to … read more
BRIAN
BRIAN
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2015 Duramax DEF light won't reset after adding fluid and
2015 Duramax DEF light won't reset after adding fluid and speed has been reduced to 55 mph. … read more
Chris Carr
Chris Carr
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I have a 2011 Chevrolet 3500 with 6.6 duramax. I have
I have replace the def heater. Truck is in limp mode all test come back passed. But is stilll in limp mode and now says at next fuel fill will go to 4 mph . How do I reset this … read more
Chris (aka-Moose)
Chris (aka-Moose)
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Vocational, Technical or Trade School
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Have filled def tank andit wont reset haslimited. Limited
Just refilled tank amd waited the 30 seconds for a reset … read more
Chris (aka-Moose)
Chris (aka-Moose)
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Vocational, Technical or Trade School
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I got a DEF warning with engine light as well.. Thought it
Hi. I got a DEF warning with engine light as well.. Thought it was a bit early since for the DEF warning since I refill the DEF at each oil change. I sensed there was some in there already. Anyway, I … read more
Eric
Eric
Retired
N/A
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Need to know how to reset diesel exhaust fluid system, Yes
Need to know how to reset diesel exhaust fluid system … read more
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Ran out of def and the diesel engine won't reset and start.
Ran out of def and the diesel engine won't reset and start … read more
Chris (aka-Moose)
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Vocational, Technical or Trade School
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DEF level 2015 GMC Denali HD filled completely, have drove
DEF level 2015 GMC Denali HD filled completely, have drove 40 mile, 6 restarts and computer telling me 395 mile to speed limitation. … read more
Chris (aka-Moose)
Chris (aka-Moose)
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Def fluid is full and dash is telling me 43 miles until 55
Def fluid is full and dash is telling me 43 miles until 55 mph limits … read more
Pete
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GMC 2015 Duramax LML V8 6.6L - DIC message SERVICE EXHAUST
GMC 2015 Duramax LML V8 6.6L - DIC message SERVICE EXHAUST FLUID SYSTEM - SEE OWNERS MANUAL . Filled DEF reservoir. Was not empty. Drove 60 miles still did not reset. Warning that it will reduce MPH t… read more
BOBBYSS
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I have a 2015 GMC 2500 HD. My message was exhaust fluid
I have a 2015 GMC 2500 HD. My message was exhaust fluid system loss of power so I filled the DEF. It's been 2 days and it still won't reset even when I did everything according to the manuel. Can I re… read more
Pete
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2011 duramax. Def level warning message came on saying 219
2011 duramax. Def level warning message came on saying 219 miles till empty. 2 weeks earlier I had added a 2.5 gallons. I bought another thinking it would clear. It didn't I bought another and it spoi… read more
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Roy
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Filled def tank and still won't go over 55 How do you reset
Filled def tank and still won't go over 55 How do you reset it? … read more
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Pete
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Completely filled def tank but still have message of 25% it
Completely filled def tank but still have message of 25% it will not clear. … read more
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,912 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,589 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

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16 years of experience

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

248 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

Mike S.

Mike S.

ASE Certified Technician

241 satisfied customers

GMC N.A.I.S.E. Certified Auto-Mechanic

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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