One problem related to other fuel system fuel gauge has been reported for the 2001 Cadillac Deville. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Cadillac Deville based on all problems reported for the 2001 Deville.
2001 Deville fuel level indicator is erratic, showing three bars and then jumping to almost full causing me to run out gas. The car has 140,000 miles on it. Now I have had to use my trip odometer as a fuel gauge, knowing how many miles per gallon I average. I have heard this a common problem in gm vehicles newer than 2008. I also hear that this is expensive to fix.