DIC information center
Is there a way to reprogram the dic on a 2013 GMC 3500. The numbers when you scroll thru always seem to be wrong. Like the amount of fuel remaining, and the distance traveled, and the mpg. even the...
Forum Discussion
I would ask the dealer to reprogram. on our 2015 duramax 2500HD, the speed and distance match the gps well. Speed is seldom different by even 1mph. distance traveled may be off by a 1 or so in 100 miles.
As for fuel, well another story. (1) in order for fuel used etc. to be accurate you MUST fill to exactly the same tank level each time, hard to do. (2) IMHO the readout if in error is on the high side for mpg.
on our duramax IF I fill the tank to where I can see fuel in the filler neck, on a 30 gallon fill the pump and DIC are usually within 1 gallon or less.
If you just go by automatic pump shutoff the differnce could be several gallons.
As for fuel, well another story. (1) in order for fuel used etc. to be accurate you MUST fill to exactly the same tank level each time, hard to do. (2) IMHO the readout if in error is on the high side for mpg.
on our duramax IF I fill the tank to where I can see fuel in the filler neck, on a 30 gallon fill the pump and DIC are usually within 1 gallon or less.
If you just go by automatic pump shutoff the differnce could be several gallons.
