It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.Google+
Car Problem Reports
Cadillac Seville SLS Fuel Level Sensor Failure
Cadillac Seville SLS Problem
Average Mileage: 102,422 mi (68,000 mi - 120,000 mi)
Visitor, 2003 Cadillac Seville SLS, 111,111 mi
Fuel level starts to wander after fuel indicator reaches about 1/4 fuel left in tank.
Visitor, 2002 Cadillac Seville SLS, 68,000 mi
When the fuel gauge falls below one-half tank, the gauge begins reading incorrectly...showing everything from a full tank to half tank.
Visitor, 2002 Cadillac Seville SLS
fuel level crazy
Visitor, 2003 Cadillac Seville SLS, 98,000 mi
Not fixed yet. Add fuel by watching mileage.
Visitor, 2001 Cadillac Seville SLS, 115,000 mi
Gas gauge doesnt read right