1999 Cadillac Seville SLS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Cadillac Seville SLS

Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
Get a Repair Estimate For Your 1999 Cadillac Seville SLS
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more

1999 Cadillac Seville SLS Problems

The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

Car Won't Start and Security Light is On

Problems with anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The key and ignition lock cylinder should be replaced to correct this condition.

Erratic Fuel Gauge Operation

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.

See More Problems (25)

1999 Cadillac Seville SLS Questions

Why do my heated seats turn off when traction control turns on? (1 answer)

I can usually turn them on for about 15 minutes and then they kick off and won't turn on again. And my trac on/off button doesn't do anything to help, or anything at all really.

why does my car stall so often with error code p1599 as the only code (1 answer)

whenever i drive my car long enought it stalls espically coming off the expressway it starts right back up and sometimes dies immidately erased codes and the only one that came back was p1599 have any ideal what the problem is mechanic is acting like a idiot

What would cause the car to stop while driving & cause the PCM P0300 & PCM P0151 (1 answer)

I have a 99 cadillac seville that has been having some serious issues. I recently had a new/used engine dropped in the car, a majority of the parts from the old engine were put on the current motor. I had severe misfires (PCM P0300). I changed the spark plugs, replaced all the coils, replaced the...

See More Questions (39)

1999 Cadillac Seville SLS Reviews

i bought my sls two years ago. had security system fixed, ( was the ignition switch). it now has 221,933k miles on it and runs great.shocks all bad though and cost more to replace than blue book for car.what a shame.other down side to this car is the low beams. lenses yellowed, like the shocks,very expensive to replace
love the car
V8 is great... has great gas milage.

See More Reviews (3)