Reliability & 5-year cost of ownership — 2018 Hyundai Sonata
NHTSA data on file today
The 2018 Hyundai Sonata has 1 NHTSA recall campaign and 375 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
NCAP overall rating: 5.0 out of 5 stars, for the 1 NHTSA-tested trim.
Recall campaigns on file
- NHTSA #21V619000 Trunk Emergency Release May Fail/FMVSS 401 NHTSA notice
Most-cited components in owner complaints
- Engine 212 complaints
- Electrical System 60 complaints
- Unknown or Other 58 complaints
- Power Train 40 complaints
- Fuel/Propulsion System 32 complaints
- Exterior Lighting 22 complaints
Of the 375 complaints on file, 18 report a crash and 13 a fire; across all 375 complaints, owners report 20 injuries and 1 death (owner-reported, not verified by NHTSA).
Average
Estimated 5-year repair + maintenance cost: $6,000–$12,000AI estimate — not from NHTSA data
The 2018 Hyundai Sonata has a moderate number of complaints, mainly involving engine and electrical system issues. These problems, coupled with a recent recall regarding the trunk latch, suggest an average reliability. However, the absence of critical safety or widespread failures balances the rating.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| engine components | 50,000–80,000 miles | $800–$2,000 | common |
| electrical system | 40,000–70,000 miles | $300–$1,200 | common |
| powertrain | 60,000–90,000 miles | $1,000–$2,500 | 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
- brake fluid replacement
- engine air filter change
- transmission fluid service
- coolant system maintenance
- spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- engine knocking sounds
- frequent electrical issues
- delayed gear shifts
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2018 Hyundai Sonata at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.