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1999 Cadillac SLS problems

The most common problem on the 1999 Cadillac SLS is electrical system. It has fewer complaints than a typical SLS model year.

Typical yearClose to a typical year
Owner complaints
5
Recalls
0
Service bulletins
10
Worst area
Electrical

The worst 1999 Cadillac SLS problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Electrical
    2
  • Engine
    2
  • Brakes
    1
  • Driver assistance
    1
  • Fuel system
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Electrical
    2
  • Engine
    2
  • Brakes
    1
  • Driver assistance
    1
  • Fuel system
    1

Recalls

No recalls on record for this model year.

Technical service bulletins for the 1999 Cadillac SLS 10

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 10 bulletins for the 1999 Cadillac SLS

What 1999 Cadillac SLS owners say

Most recent owner complaints, unedited.

Filed Apr 10, 2014 · Electrical · 52,969 miles · IL

While my wife was driving the car at about 38 miles an hour the car just died or cut out ( the ignition system quit ), on her. This happened on two different times for her and once for myself.

Filed Jan 3, 2012 · Electrical · IN

It was determined by my local cadillac service department that the alternator was faulty, drawing excessive current while the engine was off. I mentioned the recall on this model and they said it had already been replaced so it is not covered. I feel that this is an ongoing problem and should be replaced under this program.

Filed Feb 2, 2010 · Engine · 45,000 miles · OK

Bought auto 2003,after 3mo auto engine would shut off without warning at any speed,highway or in driveway. Took auto to dealer and auto kept for 3 days and dealer unable to duplicate problem. Took auto back 5 other times and same results each time. Complete tuneup was done that cost over $500.00 dollars ,vacuum hoses replaced,ignition inspected ,complete computer diagnostic electrical component checks. Auto still dies without warning. Sometime within 2wks and sometimes within 2mos.

Filed Nov 24, 2007 · Fuel system · 81,270 miles · FL · fire

Upon starting my car their was a back-fire under the hood. I again started the car and drove about two miles to my home and parked the car in the garage. I then entered the house through the garage door and started looking for receipts for charges I made at the grocery store and charges I made refueling the car. I was unable to find the charges made at the gas station. I then returned to the garage to look in the vehicle for the receipt. At this time I noticed smoke coming from under the hood of the car. I opened the hood to find the insulation smoldering that is attached to the hood of the automobile. I then grabbed a sponge and soaked it in a pail of water that was in the set-tub located in the garage. I put out the fire that was now starting to burn under the hood. I can only imagine what might have happened if I didn't look for the receipt at that time seeing as how the garage is under the roof of my home. Note: I had noticed once before that part of the insulation had burned under the hood of the car. This was a burn about 12 inches square on the left side of the engine near the middle of the hood. I always wondered how this might have happened. At present the area that has burned is now about 18 inches in diameter.

Filed Aug 24, 2006 · Brakes, Driver assistance · 80,000 miles · MN

When I first purchased the car it had a cracked head and many other minor problems. I repeatedly brought it back to the dealership and they told me that there was nothing wrong with the car. I am still experiencing a "check gas cap" warning and I hear a clicking noise coming from the rear right side everytime I apply the brakes. Also I hear a rattling noise everytime I hit any size of bump.

Compare the 1999 Cadillac SLS

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Questions about the 1999 Cadillac SLS

Is the 1999 Cadillac SLS reliable?

Owners have filed 5 complaints about the 1999 Cadillac SLS, fewer than a typical SLS model year.

What is the most common problem with the 1999 Cadillac SLS?

Electrical system, with 2 complaints. Next is engine (2).

How many recalls does the 1999 Cadillac SLS have?

No recalls on record.

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