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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I'm having an issue with my 2015 Chevy 2500 DuraMax DEF

Customer Question

Hello I'm having an issue with my 2015 Chevy 2500 DuraMax DEF system. I filled it up at a pump on my way to San Antonio Fri. After driving approximately 100 miles the poor quality exhaust fluid message came on. After driving 75 more miles I stopped and put 2 and a half gallon of the expense BLU DEF which I usually use. It didn't make a difference. Once I made it home and limited to 55 mph I added another gallon of the good def fluid and it still is doing it. What can I do to reset this thing? I have to go to San Antonio this evening and there is no dealership open on Sunday.
JA: How many miles are on the car? How has your mileage been lately?
Customer: 70,000. My 3/4 ton 4x4 DuraMax is lifted 6 inches. It was done by the dealership. It gets around 18mph on the highway.
JA: What is the make/model of your car?
Customer: Chevy
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: I've tried. Like I said above
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 5 months ago.
Category: Chevy
Expert:  Roy replied 5 months ago.

hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

Expert:  Roy replied 5 months ago.

ok, so it went into de rate.

do you have a scan tool to read the code number???

the message does not mean the fluid is not any good. it is a issue with either the def pump, lines or injector. thats why a code number would help narrow down the area of failure

Roy

Customer: replied 5 months ago.
I'm getting it now
Expert:  Roy replied 5 months ago.

ok

Customer: replied 5 months ago.
P249D
Expert:  Roy replied 5 months ago.

looking for info.

Expert:  Roy replied 5 months ago.

ok, have you tried re setting the code??? try this if you have not and see if it returns.

Roy

Customer: replied 5 months ago.
It resets the check engine light but not the def indicator and the message. Check engine light stays off awhile before coming back on.
Expert:  Roy replied 5 months ago.

there is a procedure for re setting the message. thats what I am looking for right now

Expert:  Roy replied 5 months ago.

I cannot find it on alldata or mitchel.

I will opt out and see if someone else knows the procedure.

Roy

Customer: replied 5 months ago.
Thank you Sir.
Customer: replied 5 months ago.
Please cancel my order. I no longer need help. I had to take it to the dealership this morning.
Wayland Allen