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Filled lmy 2012 Duramax with DEF. It was 13 miles until
Filled lmy 2012 Duramax with DEF. It was 13 miles until reduced speed of 65 MPH. Started up and drove around the block. It did not reset. How do I reset? … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
Exhaust fluid system will not reset. About 66000. 2016 Chevy
now I have a service prompt It's telling me 77 miles to 65 mph and to see owners manual… read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
640 satisfied customers
Exhaust fluid system and 95 miles until 65 max speed. 78118
Exhaust fluid system and 95 miles until 65 max speed … read more
Andrew
Andrew
Master Diagnostic Technician
Associate of Occupational in Automotive Technology
330 satisfied customers
I have a 2016 gmc diesel I got a warning light-to Service
I have a 2016 gmc diesel I got a warning light-to Service Exhaust fluid system.With no check engine light I brought it to my local shop they changed the two heaters one line heater and one tank heater… read more
Roy
Roy
shop foreman
Associate Degree
5,209 satisfied customers
2012 gmc denali 2500 duramax. the "service exhaust fluid
2012 gmc denali 2500 duramax. the "service exhaust fluid system" indicator came on. went to max xpeed 65, then to max speed 55, now in 65 miles it will go to 4mph. Had a bad battery and changed it. Ha… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,365 satisfied customers
Def light won't reset after adding fluid and speed has been
def light won't reset after adding fluid and speed has been reduced to 65 … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
7,337 satisfied customers
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
Ase Master
Ase Master Tech
463 satisfied customers
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)
GMC Technician
Vocational, Technical or Trade School
766 satisfied customers
2012 Silverado 3500 HD, Duramax, w/ 52,000 mi. (Just
2012 Silverado 3500 HD, Duramax, w/ 52,000 mi. (Just purchased) Check Engine Lamp on, Plus message "Exhaust Fluid Poor Quality" . Truck is in 65 mph limit, soon to drop to 55 mph. Added 2.5 gal. fresh… read more
Chris Carr
Chris Carr
Ase Master
Ase Master Tech
463 satisfied customers
2015 duramax that has full Def tank and dash warning wont go
2015 duramax that has full Def tank and dash warning wont go away, any thoughts … read more
Robert Blackwell
Robert Blackwell
Shop Owner
Vocational, Technical or Trade School
156 satisfied customers
Dec. Def says empty it's full is there a reset. 2015
Dec JA: What is the model/year of your GMC? Customer: Def says empty it's full is there a reset JA: What year is your GMC? Customer: 2015 Silverado 2500 duramax JA: Are you fixing your Silverado yours… read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
Getting a service message on my exhaust fluid system and is
getting a service message on my exhaust fluid system and is transitioning to 65mph … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
640 satisfied customers
I have 2011 2500 with Duramax. DIC display "Exhaust Fluid
I have 2011 2500 with Duramax. DIC display "Exhaust Fluid Empty Refill Now-Speed Limited to 55". I have added DEF fluid and ran the truck for about 50 miles. Have turned it off and restarted it severa… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
766 satisfied customers
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
Pete
GMC Mechanic
General auto certifications
38,045 satisfied customers
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
Pete
Pete
GMC Mechanic
General auto certifications
38,045 satisfied customers
I spend a lot of time on the road. i am retired. i usedto
I spend a lot of time on the road. i am retired. i usedto design and build 12V and 24V control systems. This winter my DEF started giving me strange readings. the tank was at 14% and it took maybe 1 g… read more
Roy
Roy
shop foreman
Associate Degree
5,209 satisfied customers
GMC silverado: 2013 DMAX silverado 2500 4x4 dic message def
2013 DMAX silverado 2500 4x4 dic message def low limited in 300 miles but tank is full and not reseting it self, i drove 250 miles with message but no reset needed to leave town tomarrow no diesel mec… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
766 satisfied customers
GM GMC Sierra SLT 2500HD: I have a 2008 GMC Sierra SLT 2500
I have a 2008 GMC Sierra SLT 2500 HD Crew, Long Bed with a diesel engine. It should have a 34 gallon fuel tank. The fuel light comes on and the range indicator says low, but when I fill it up, the mos… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
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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)

GMC Technician

766 satisfied customers

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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