1999 Cadillac SLS Problems
- Complaints
- 5filed with NHTSA
- Median mileage
- 66,484miles, 4 complaints with mileage
- Recalls
- 0campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 1999 Cadillac SLS (complaints, recalls, investigations). Report an error
NHTSA recorded 5 consumer complaints for the 1999 Cadillac SLS. The part named most often is electrical system, with 2 complaints (40% of the total), followed by engine cooling (2) and brakes (1). 4 of the complaints include a mileage, and 25% of those were filed for vehicles with under 50,000 miles; the median is 66,484 miles. Of all complaints, 1 a fire, according to the filers. NHTSA lists 0 recall campaigns and 10 technical service bulletins for this model year. Engine cooling complaints overlap with 1 technical service bulletin filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Electrical system2 40%
- Engine cooling2 40%
- Brakes1 20%
- Fuel system1 20%
Example complaints
Electrical system: “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.”
NHTSA complaint #10578924, filed 2014-04, 52,969 milesEngine cooling: “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.”
NHTSA complaint #10166478, filed 2006-08, 80,000 milesMileage when problems were reported
25% of the 4 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 52,969 and 80,000 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
NHTSA lists no recall campaigns for the 1999 Cadillac SLS in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 10 on record; the latest 10 are shown.
- 10232287Feb 21, 2023Equipment. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
- 10011691Jun 6, 2022Suspension. High speed shake or vibration.
- 10082506Aug 26, 2016Equipment. This technical bulletin provides a procedure to reprogram the media disc player with the latest calibrations to correct a condition of the rear entertainment system not operating as intended in…
- 10248444Jun 30, 2014Equipment. Vehicle Recalls
- 10190932Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o…
- 10190931Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o…
- 10190934Jan 1, 2014Equipment, Body and structure. Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's…
- 10190933Jan 1, 2014Equipment, Body and structure. Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's…
- 10246631Sep 1, 2013Engine cooling. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- 10019202Feb 17, 2006Transmission and drivetrain. Missing camshaft intermediate drive shaft plug - service vme.
Other model years of the Cadillac SLS
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2002 | 10 | 87,000 | 0 | — | — | — | Not enough data |
| 2000 | 11 | 70,700 | 1 | — | — | — | Not enough data |
| 1999 | 5 | 66,484 | 0 | — | — | — | Not enough data |
Frequently asked questions
How many NHTSA complaints does the 1999 Cadillac SLS have?
NHTSA recorded 5 consumer complaints for the 1999 Cadillac SLS as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 1999 Cadillac SLS is reported most often?
Electrical system is named most often, in 2 complaints (40% of the total), followed by engine cooling with 2.
Has the 1999 Cadillac SLS been recalled?
NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
At what mileage are problems with the 1999 Cadillac SLS reported?
Among the 4 complaints that include a mileage, the median is 66,484 miles and the middle half falls between 52,969 and 80,000 miles; 25% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.