Piston slap engine defect, seizure risk
Loud knocking, often requiring full engine replacement at $7,500+
Check engine light: On
~80+ complaints — the largest category for this vehicle — describe a piston slap defect with loud knocking and engine seizure risk while driving, often requiring full engine replacement.
$7,500+
The same Theta II engine defect is reported on the Hyundai Sonata.
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ABS module fire risk, recall largely unresolved
Brake fluid leaks and electrical shorts from the defective module
Check engine light: On
Owners describe the 'ABS pump caught on fire,' with electrical shorts causing engine compartment fires, tied to a confirmed recall (23V651000) that remains largely unresolved.
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Recall parts unavailability delays safety repairs by months
Dealers report lacking components for known defects
Check engine light: On
Recall parts unavailability delays critical safety repairs by months; dealers report lacking replacement components for known defects, including the ABS module recall above.
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Hydraulic brake line corrosion, brake pedal to floor
Particularly in cold-weather/road-salt regions
Check engine light: On
Hydraulic brake line corrosion causes fluid loss and a brake pedal that 'goes to floor,' particularly in cold-weather/road-salt regions.
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Steering coupler failure
Clicking/clunking during turns, excessive play at highway speeds
Check engine light: On
A 'flexible coupler had failed,' producing clicking/clunking during turns and excessive play in the steering wheel at highway speeds.
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Clock spring airbag issues, GT model excluded from warranty
Intermittent warning lights, horn inoperability, deployment risk
Check engine light: On
Clock spring failures cause intermittent warning lights, horn inoperability, and potential airbag deployment failure; the GT model is reported excluded from the extended warranty covering this defect.
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Transmission Won't Shift/Check Engine Light Due to Failed Speed Sensors in Transmission
The transmission will not shift and/or the check engine light comes on due to failed speed sensors in the transmission
Check engine light: On
The transmission will not shift and/or the check engine light comes on due to failed speed sensors in the transmission. This is among the more frequently reported issues on this generation, with 308 owner reports on file.
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Stalling/Failure to Start Due to Crankshaft Angle Sensor Failure
Stalling or failure to start is caused by a crankshaft angle sensor failure
Check engine light: Off
Stalling or failure to start is caused by a crankshaft angle sensor failure. This is among the more frequently reported issues on this generation, with 220 owner reports on file.
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All Power Windows Stopped Working Simultaneously
All power windows stop working simultaneously, tied to driver-side window operation
Check engine light: Off
All power windows stop working simultaneously, tied to driver-side window operation. This is among the more frequently reported issues on this generation, with 176 owner reports on file.
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Check Engine Light Due to Failing Canister Purge Valve
The check engine light comes on due to a failing canister purge valve
Check engine light: On
The check engine light comes on due to a failing canister purge valve. This is among the more frequently reported issues on this generation, with 122 owner reports on file.
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No Sound from Speakers
No sound comes from the speakers
Check engine light: Off
No sound comes from the speakers. This is among the more frequently reported issues on this generation, with 38 owner reports on file.
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CD Player Error 43 Prevents CDs from Playing or Inserting
CD player error 43 prevents CDs from playing or being inserted
Check engine light: Off
CD player error 43 prevents CDs from playing or being inserted. This is among the more frequently reported issues on this generation, with 16 owner reports on file.
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Engine Hesitation with Poor Acceleration and Shifting Issues, Possible Catalytic Converter
Engine hesitation with poor acceleration and shifting issues, possibly caused by the catalytic converter
Check engine light: Off
Engine hesitation with poor acceleration and shifting issues, possibly caused by the catalytic converter. This is among the more frequently reported issues on this generation, with 12 owner reports on file.
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IMPORTANT — CONFIRMED FIRE-RISK RECALL WITH UNRESOLVED PARTS SHORTAGE. Owners describe the 'ABS pump caught on fire,' with electrical shorts causing engine compartment fires under recall 23V651000, which remains largely unresolved for months. A piston slap engine defect — loud knocking, engine seizure risk, often requiring full engine replacement — is this generation's largest single complaint category (~80+ complaints), the same Theta II engine problem is reported on the Hyundai Sonata.