2010 Hyundai Sonata
Common Problems
Ranked from 220 federal NHTSA complaints. Every problem links to the complaint IDs behind it.
14 Common Problems
Ordered by how often owners reported each one to NHTSA. The bar shows how common a problem is relative to the most-reported on this vehicle. Expand any problem to see the federal complaint IDs.
- 1
Exterior door handles detach or break under normal use
121complaintsSafety riskOtherExterior door handles detach or break when opened normally, posing a risk in emergencies where doors cannot be accessed.
$200–$600est. door lock/latch repair · 1–2.5 hrs laborGet local quotes - 2
Check engine light and erratic dashboard behavior
24complaintsSafety riskElectricalPersistent check engine light activation, erratic fuel gauge and heating/cooling gauge behavior, and cruise control failure are reported despite multiple repairs and diagnostics.
$100–$250est. professional diagnosis · 1–2 hrs laborGet local quotes - 3
Premature rear brake pad and rotor wear
19complaintsHigh severityBrakesOwners report premature wear of rear brake pads and rotors, requiring replacement at unusually low mileage (as low as 16,000 miles), often accompanied by grinding noises and burning smells.
$250–$700est. brake pads + rotors (per axle) · 1–2.5 hrs laborGet local quotes - 4
Engine failure due to internal mechanical failure or oil consumption
12complaintsHigh severityEngineMultiple reports describe sudden engine failure, including thrown rods, seized engines, and oil consumption defects, often occurring without prior warning or with low mileage.
$4,000–$8,000est. engine replacement · 12–20 hrs laborGet local quotes - 5
Engine stalls or fails to start without warning
12complaintsHigh severityEngineThe engine stalls while driving or fails to start unexpectedly, often requiring towing or extended wait times.
$150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs laborGet local quotes - 6
Electronic Stability Control (ESC) system malfunction causing driving instability
8complaintsSafety riskElectricalThe ESC system turns off randomly while driving, causing instability and affecting braking performance, requiring the vehicle to be restarted to reset the system.
- 7
Unintended acceleration or sudden power loss during driving
8complaintsHigh severityOtherThe vehicle experiences unintended acceleration or sudden power loss, requiring emergency maneuvers to stop.
$150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs laborGet local quotes - 8
Steering pulling to one side or sticking
7complaintsHigh severitySteeringSteering wheel pulls to the right despite wheel alignment and adjustments, or steering sticks unpredictably, causing driver to overcorrect.
$200–$1,500est. power-steering / eps repair · 1–6 hrs laborGet local quotes - 9
Headlights Produce a Distorted Light Pattern
4complaintsMedium severityElectricalHeadlights emit a black horizontal band that obstructs vision, especially on hills or at night.
$100–$900est. lighting assembly repair · 0.5–2 hrs laborGet local quotes - 10
Transmission jerking and downshifting issues
4complaintsMedium severityTransmissionCold transmission causes hard downshifts and RPM spikes when slowing down, leading to jerking motion and driver discomfort.
$200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs laborGet local quotes - 11
Check engine light activation with refusal of warranty coverage
3complaintsLow severityEngineOwners report the check engine light activating, but dealers refuse warranty coverage unless a fee is paid, even though the issue is unclear or unresolved.
$100–$250est. professional diagnosis · 1–2 hrs laborGet local quotes - 12
Fuel tank corrosion and fuel pump failure
3complaintsMedium severityFuel systemFuel tank rusts through, causing emissions failures and requiring replacement. Fuel pump failure also reported, causing sudden engine shutdown.
$500–$1,100est. fuel pump replacement · 2–5 hrs laborGet local quotes - 13
Tire Sidewall Failures Prematurely
3complaintsMedium severityOtherTires develop sidewall bulges or splits within low mileage, requiring frequent replacements.
- 14
Starter motor failure requiring replacement
2complaintsMedium severityEngineStarter motor fails unexpectedly, preventing the vehicle from starting.
$300–$800est. starter replacement · 1–3 hrs laborGet local quotes
Other years & sources
Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls. Problems are clustered and ranked from the complaint record; occurrence counts reflect corroborating complaints, not total incidence. Vehicle image is illustrative. Repair-cost figures are typical U.S. independent-shop ranges (parts + labor) for the class of repair shown — actual quotes vary by region, engine, and diagnosis; always confirm with a local shop.