Dash instant fuel economy

[Ian Mills]

So back in the day my mom had a 2003 Suburban LT with all the bells and whistles including an "instant fuel economy" display that would update every second or two with an estimate of how much fuel you were burning (it was always a lot). Does anyone know if that feature was unique to the LT trim or a certain package or something. My 2005 Silverado LS Z71 does not seem to have this feature and I'm curious about it. Any info would be appreciated.

[bubbanbrenda]

My '08 Sierra SLT Z71 has it.

[CamGTP]

It's a package option. If you have the full steering wheel controls then you'd have the DIC information center as well.

 

But you are probably right, it was not offered on the more base LS models.

[Ian Mills]

Wait, I have the full steering wheel controls and the DIC information center. I scroll through all the fuel options and I get average economy, gallons used, range, etc. but no instant economy

[r1byker]

My '05 Suburban LT does not have it, my '08 Cadillac CTS has it, and my GMC 2500 HD Duramax does not have it. I've often wondered how the engineers across the different divisions of GM make their decisions about these kinds of amenities.

 

[Mars2878]

My 08 Sierra WT 4.3L 2wd did not have a DIC. But the harness for it was behind the dash bezel. So I went to the j/y & bought a bezel & switch from a 2010 Sierra. Cleaned it all up & installed it in mine. For me it was plug & play. My 2008 Sierra WT now has a functioning DIC. 

 

 

[Ian Mills]

I did some digging in owners manuals. For 2003 and 2004 model years, the DIC included average and instant fuel economy. For 2005 and 2006, the only fuel economy in the DIC was the average. In 2007 they reintroduced the instant economy feature but maybe only on AFM trucks.