Gas mileage indicator malfunction -
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Go Back > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > Gas mileage indicator malfunction

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Unread 09-10-2013, 10:55 PM   #1
Registered User
2009 WK 
Join Date: May 2013
Location: White Rock, BC
Posts: 44
Gas mileage indicator malfunction

Since I bought my WK in April, everytime I fill up, the gas mileage indicator has been a steady 535 km. A few weeks back when I filled up it read 627 and I thought to myself... bonus. Now the last couple fillups have read under 500.

Has anyone else experienced this? Is there some sort of reset I can do, or is the gauge malfunctioning and needs replacing?

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Unread 09-11-2013, 03:31 AM   #2
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2008 WK 
Join Date: Aug 2010
Location: Hills of Pa., Pennsylvania
Posts: 338
Just thinking.

Try to compare the readings recorded on Trip A vs Trip B and see if the miles driven agree.
2001 Winnebago Adventurer 32v Motor Home
2008 Jeep GC Limited Toad, 4.7 L V-8, QTII
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Unread 09-11-2013, 07:45 AM   #3
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2007 WK 
Join Date: Oct 2012
Location: Montreal, QC
Posts: 359
It will re-calculate based on your average speed and fuel consumption. So if you were highway driving when you filled up it estimated better fuel economy so longer distance. If you filled up after city driving it will show lower estimate.
2007 WK CRD QDII, GDE HOT tune. 275/55/18'' on Sahara's, SRT8 suspension.
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