Reliability & 5-year cost of ownership — 2005 Cadillac STS
NHTSA data on file today
The 2005 Cadillac STS has 3 NHTSA recall campaigns and 101 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #07V589000 DRIVE AXLE SEAL LEAK NHTSA notice
- NHTSA #06V125000 REAR SUSPENSION ASSEMBLY NHTSA notice
- NHTSA #06V020000 FUEL GAUGE INACCURATE NHTSA notice
Most-cited components in owner complaints
- Electrical System 23 complaints
- Power Train 18 complaints
- Engine 12 complaints
- Air Bags 11 complaints
- Engine and Engine Cooling 7 complaints
- Seats 6 complaints
Of the 101 complaints on file, 13 report a crash and 4 a fire; across all 101 complaints, owners report 4 injuries (owner-reported, not verified by NHTSA).
Below average
Estimated 5-year repair + maintenance cost: $4,500–$7,500AI estimate — not from NHTSA data
The 2005 Cadillac STS has reliability concerns due to frequent electrical and power train issues and notable recalls affecting the axle and suspension. Repair costs can be high and frequent.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| electrical system | 80,000–110,000 miles | $300–$900 | common |
| power train | 70,000–100,000 miles | $700–$1,500 | common |
| rear suspension | 60,000–90,000 miles | $400–$1,200 | occasional |
| fuel system | 60,000–80,000 miles | $200–$600 | occasional |
| engine cooling | 90,000–120,000 miles | $500–$1,200 | 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 change every 5,000 miles
- Brake fluid replacement every 30,000 miles
- Transmission fluid change every 60,000 miles
- Coolant replacement every 60,000 miles
- Replace spark plugs at 100,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Unusual electrical issues or dimming lights
- Fluid leaks under the vehicle
- Loss of power steering control
- Suspension noises over bumps
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2005 Cadillac STS at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.