The Hyundai engine recall covers vehicles with the Theta II 2.0L and 2.4L GDI engine. The defect involves metal debris from the manufacturing process contaminating the engine oil supply, leading to premature bearing wear, engine knock, sudden stalling, and in some cases engine fires.
NHTSA issued recall campaign 17V226 in 2017, with additional campaigns following. The Theta II class action settlement (approved December 2020) provides lifetime warranty coverage on the engine short block — no mileage limit, no expiration date.
Despite this, dealers continue to deny valid claims. If your Hyundai engine recall claim was denied, you have legal grounds to appeal — and our AI response generator makes it easy.
Hyundai Theta II engine — metal debris, engine stall and fire risk
Issued: 2017
Hyundai Theta II engine — expanded recall scope
Issued: 2020
Knock Sensor Detection System software — recall 953/954 equivalent
Issued: 2017–2020
Hyundai Dealer Best Practice service campaigns — extended warranty coverage
Issued: 2022
Select your vehicle for a model-specific recall guide and warranty denial help.
"KSDS software not installed"
As of Hyundai's April 2022 Dealer Best Practice update, KSDS installation is NOT required to qualify for engine bearing failure warranty coverage. This denial is invalid and can be overturned.
"Insufficient maintenance records"
The Magnuson-Moss Warranty Act prohibits Hyundai from denying your claim solely because you lack oil change records. They must prove the missing maintenance caused the failure — not just that records don't exist.
"Vehicle exceeds warranty mileage"
The Theta II class action settlement provides LIFETIME coverage on the engine short block with NO mileage limit. High mileage is not a valid denial reason for Theta II-related failures.
"Engine failure not covered by recall"
If your engine shows rod knock, bearing wear, or metal debris in the oil — these are the exact failure modes the recall covers. Request a written inspection report and consider a second dealer opinion.
"Aftermarket oil or parts used"
Hyundai must prove the specific aftermarket product directly caused the failure. Using a different brand of oil or an aftermarket filter does not automatically void your warranty under federal law.