2018 Hyundai Sonata reliability record
NHTSA consumer complaints and recall campaigns for the 2018 Hyundai Sonata from the dataset labeled 2026. The source file does not provide an exact snapshot date. Use the reported issues to guide further checks; these counts do not establish failure rates or repair costs.
- NHTSA complaints
- 539
- Dataset year: 2026; snapshot day not provided
- Top problem area
- ENGINE
- 203 complaints
- Recalls on record
- 1
- see below
- Reported harm
- 26 reported crashes · 28 injuries · 1 death · 18 fires
How this record compares
raw NHTSA counts, not defect ratesCounts are not adjusted for vehicles sold, time in service or reporting frequency. A larger count does not establish a higher chance of failure, and these comparisons do not set the maintenance budget in our calculator.
Complaint rank
#950
of 4,194 vehicle records
Vs Hyundai median
+271
median 268 across 168 Hyundai records
Vs 2016-2020
+252
median 288 complaints in 538 records
Top component share
38%
Engine: 203 complaints
What owners report fails — 2018 Hyundai Sonata
- ENGINE 203
- UNKNOWN OR OTHER 58
- ELECTRICAL SYSTEM 56
- POWER TRAIN 39
- FUEL/PROPULSION SYSTEM 29
1 recall on record for the 2018 Hyundai Sonata
- NHTSA 21V619000 · 2021 · LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH A person inside the trunk compartment may become trapped, increasing their risk of injury.
Estimate the 5-year cost to own a 2018 Hyundai Sonata
Build a separate budget with your purchase price, insurance quote, mileage and maintenance estimate. Complaint counts do not enter that calculation. Unknown local taxes and fees stay listed as costs to confirm.
Open TCO calculatorThese are unverified consumer reports and manufacturer recalls filed with the National Highway Traffic Safety Administration — not validated defect rates, and not adjusted for how many 2018 Hyundai Sonata units were produced or sold. High-volume and older vehicles naturally accumulate more complaints. Use this as one research signal, not a verdict on any individual vehicle. Dataset year: 2026; exact snapshot day not supplied. Source: NHTSA Office of Defects Investigation (public domain).
Frequently asked questions
Is the 2018 Hyundai Sonata reliable?
NHTSA has 539 consumer complaints on record for the 2018 Hyundai Sonata and 1 recall. The most-reported problem area is engine (203 reports). These are unverified consumer reports filed with the government, not validated failure rates, and are not adjusted for how many 2018 Hyundai Sonata units were produced — popular vehicles naturally accumulate more reports.
What are the most common problems with the 2018 Hyundai Sonata?
Owners most often report problems with: engine (203), unknown or other (58), electrical system (56), power train (39). Each figure is the number of complaints filed with NHTSA for this exact model year.
How much does it cost to own a 2018 Hyundai Sonata?
This complaint dataset does not measure repair prices or predict a maintenance budget for the 2018 Hyundai Sonata. Use your purchase price, insurance quotes, fuel use and a maintenance estimate in the separate five-year cost calculator. It does not convert complaint counts into repair costs, and any unknown taxes remain excluded and clearly listed.