Reliability & 5-year cost of ownership — 1999 Cadillac STS
NHTSA data on file today
try.vin couldn't confirm NHTSA's recall list for the 1999 Cadillac STS, so this page doesn't state a recall count — check the VIN at nhtsa.gov/recalls for current campaigns. 13 owner complaints are on file.
Most-cited components in owner complaints
- Electrical System 6 complaints
- Engine and Engine Cooling 6 complaints
- Engine 2 complaints
- Equipment 1 complaint
- Steering 1 complaint
- Suspension 1 complaint
Of the 13 complaints on file, 1 reports a fire (owner-reported, not verified by NHTSA).
Below average
Estimated 5-year repair + maintenance cost: $7,500–$12,000AI estimate — not from NHTSA data
The 1999 Cadillac STS has several complaints regarding engine cooling, electrical systems, and engine issues. The absence of recent recalls suggests stability, but higher complaints in crucial systems indicate potential costs.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| engine cooling | 90,000–120,000 miles | $500–$900 | common |
| electrical system | 80,000–110,000 miles | $400–$700 | common |
| engine | 100,000–130,000 miles | $1,000–$1,800 | occasional |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake inspections
- Transmission fluid replacement
- Coolant system flush
- Tire rotation and balance
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Overheating engine issues
- Dim or flickering lights
- Unusual dashboard alerts
- Difficulty starting engine
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 1999 Cadillac STS at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.