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Silverado MPG Computer??

KMT15

By KMT15
in 2000-2014 Silverado HD & Sierra HD

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KMT15 Enthusiast

KMT15

Posted
Posted

I have a 2010 3500 LT Dually but for some reason it does not have the 4 buttons with the trip computer (MPG etc). I bought a scangauge2 but am now hearing I have to calibrate it every fuel fill up just to have accurate readings on MPG? Seems like a waste. Is there anyway to add the factory computer to my silverado? I thought all chevys came with it. Even my express work vans at work all have it.

ursandal Enthusiast

ursandal

Posted
Posted

Easy fix. Just check behind the light switch to make sure you have the harness to plug into the new dic. My harness was just "plugged" into a dummy plug in the back of the standard light switch. I also have a scan gauge and after running a couple tank fuels through the gas milage seems pretty accurate. Where you'll run into problems with the scan gauge is if you don't fill up when you get gas. If you buy $20 worth here and there it jacks up the reading. I just input the amount of gallons and cost into the scan gauge when I fill up and that's it.

 

Here's the dic I got for my 2012, double check the part number for your truck.

 

http://www.amazon.com/Genuine-GM-19159438-Driver-Information/dp/B008FCE3BC/ref=sr_sp-atf_title_1_1?ie=UTF8&qid=1386350840&sr=8-1&keywords=gm+dic

99kon Enthusiast

99kon

Posted
Posted

You will gain a lot of options from that little panel other than just the MPG computer.

Very nice upgrade, I did it to my 09 Silverado LS.

I think unless you have the WT package you should have the capability of adding it.

ursandal Enthusiast

ursandal

Posted
Posted

^My 2012 WT truck still had the plug back there. That seems to be hit or miss but definitely worth a peek behind the panel before you drop the $$ for the dic.

KMT15 Enthusiast

KMT15

Posted
  • Author
Posted

Awesome thanks guys! My dad has a 2007 (early older body style) Duramax dually and has the computer, I have a 2007 Denali XL that has it and a 2011 1500 silverado that has it. I always wondered why my dually didn't have it. Will go check now. I'm assuming the panel just pops off?

johnnyg123 Enthusiast

johnnyg123

Posted
Posted

my 2013 wt 2500 had it also. ordered it from a dealer on ebay for 78 shipped to house. only found out about it after looking around this forum. great upgrade

KMT15 Enthusiast

KMT15

Posted
  • Author
Posted

Kind of weird that it only has one trip calculator and no timer or avg speed. You would think GM would have one computer for all the vehicles rather than several different ones.

sdeeter19555 Senior Enthusiast

sdeeter19555

Posted
Posted

Dumb question, but would this mod provide a temperature readout in place of the generic (ice warning) on a 2012? If so, I'm there...

ursandal Enthusiast

ursandal

Posted
Posted

Dumb question, but would this mod provide a temperature readout in place of the generic (ice warning) on a 2012? If so, I'm there...

It doesn't on my 2012, still just get the ice warning. I mainly did it for the individual tire pressures. I think the only way to get the outside temp is to get a rearview mirror that has it.

KMT15 Enthusiast

KMT15

Posted
  • Author
Posted

It doesn't on my 2012, still just get the ice warning. I mainly did it for the individual tire pressures. I think the only way to get the outside temp is to get a rearview mirror that has it.

Mine is a 2010 and already had the temp/ compare to the right of the odometer. Still there after the computer add on. I don't get tire pressures though and so e of my other vehicles do, maybe because it's a dually?

ursandal Enthusiast

ursandal

Posted
Posted

Mine is a 2010 and already had the temp/ compare to the right of the odometer. Still there after the computer add on. I don't get tire pressures though and so e of my other vehicles do, maybe because it's a dually?

I don't think the 3500's are required by law to have TPMS on them. Do you know if your wheels even have sensors?

MikeNH Senior Enthusiast

MikeNH

Posted
Posted
Mine is a 2010 and already had the temp/ compare to the right of the odometer. Still there after the computer add on. I don't get tire pressures though and so e of my other vehicles do, maybe because it's a dually?

I don't think the 3500's are required by law to have TPMS on them. Do you know if your wheels even have sensors?

 

It won't. Above a certain GVWR the system isn't required.

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