Trip And Fuel Computer

[KVacek]

I just bought a 2005 Yukon XL Denali to replace our '93 Suburban.

 

Looking through the vehicle information displays, I found a fuel totalizer, indicating that the truck has used 5,008 gallons of fuel, and the average MPG was 14.9. That would be fine if the truck had about 75,000 miles, but it shows 37,000, and the original tires show about that much wear too.

 

It was a lease vehicle, and is in beautiful condition, showing little wear for even 37,000 miles.

 

Is it possible / practical that the computer has been hacked, or is there some other explanation for the discrepancy ?

 

Thanks in advance !

Karl

[ricko2]

I don't know if this helps, but I reset those every time I buy gas...

[hubbycap]

I don't know if this helps, but I reset those every time I buy gas...

 

 

+1

 

May have been a hiccup in the cumalitive total. I reset mine at each fill-up so I can see if something is going on recently.

[3n8fan]

I just bought a 2005 Yukon XL Denali to replace our '93 Suburban.

 

Looking through the vehicle information displays, I found a fuel totalizer, indicating that the truck has used 5,008 gallons of fuel, and the average MPG was 14.9. That would be fine if the truck had about 75,000 miles, but it shows 37,000, and the original tires show about that much wear too.

 

It was a lease vehicle, and is in beautiful condition, showing little wear for even 37,000 miles.

 

Is it possible / practical that the computer has been hacked, or is there some other explanation for the discrepancy ?

 

Thanks in advance !

Karl

That's a sh$t load of idling for sure, was it still running when you picked it up. Just kidding but that seems strange. There is no way it could have used 5000 gallons in 37000 miles, 7.4 mpg appox. Look up the service records if you can to find recorded mileage points.

[2017HD]

Are the engine hours displayed? That would give you an idea of how much idling it had been doing.

[KVacek]

Are the engine hours displayed? That would give you an idea of how much idling it had been doing.

 

That's apparently been reset - it shows only 152 hours, which is far too little.

[KVacek]

Thanks to all for the advice. Mystery solved - a GM dealer service printout shows mileage at every warrantee repair, and it all tracks just fine. There was a dashboard module warrantee replaced last April and I suspect the "fuel used" on the exchange one installed was not zeroed out when it was "rebuilt". That also explains why the engine hours were so low - assuming engine hours were zeroed, 152 hours on it since April sounds fine.

 

Thanks again !

Karl