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2019 Hyundai Sonata problems

A 2019 Hyundai Sonata is now 7 years old, so an average example has covered around 94,500 miles. The final model year of the generation · generally the most sorted build, so mileage, servicing and condition matter more than build-year faults. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2019 car has usually reached the mileage where they appear.

Compiled & reviewed by the VehicleFaults Research Team

Quick answer

The 2019 Hyundai Sonata is 7 years old, so an average example has covered roughly 94,500 miles. At that mileage 3 of the documented faults are already due, so check those first.

Faults a 2019 example has usually reached

Documented onset mileage is at or below the ~95k miles an average 2019 car has covered.

EngineCritical

Theta II 2.0T/2.4L engine failure (bearing/knock) — subject to recalls and warranty extensions.

Typically appears
60,000+ miles
What to inspect
Listen for a knock, check for the knock-sensor recall completion, and confirm any engine replacement.
EngineHigh

Excessive oil consumption.

Typically appears
70,000+ miles
What to inspect
Check oil level and top-up history.
SteeringMedium

Electric power steering faults.

Typically appears
80,000+ miles
What to inspect
Confirm steering is consistent with no warning lights.

Faults that appear at any mileage

Age, electronics and build-related issues that are not mileage-driven.

ElectricalLow

Infotainment and sensor glitches.

Typically appears
Any
What to inspect
Test the screen and driver-assist features.

Inspecting a 2019 Hyundai Sonata?

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Hyundai Sonata · frequently asked questions

Are Hyundai Sonata engine problems real?

Yes — the Theta II engines have a well-documented failure history with recalls; verify the knock-sensor update and any engine replacement.

Is the Sonata a good used buy?

It offers strong value, but only with confirmed recall completion and clean oil-consumption history.

What's the knock-sensor recall?

Hyundai added a knock-sensor detection system to catch bearing wear early — confirm it was installed.

Other Sonata model years