The Kia engine recall covers vehicles with the Theta II 2.0L and 2.4L GDI engine — one of the most widespread automotive defects in U.S. history. The defect involves metal debris from the manufacturing process contaminating the engine oil supply, causing premature bearing wear, engine knock, and in some cases, engine fires.
NHTSA issued multiple recall campaigns starting in 2017, and a class action settlement was approved in December 2020 providing lifetime warranty coverage on the engine short block assembly — with no mileage limit.
Despite this, thousands of owners are still being denied. Dealers cite reasons like missing oil records, KSDS not installed, or high mileage — all of which are legally challengeable.
Kia Theta II engine — metal debris contamination, engine fire risk
Issued: 2020
Kia Theta II engine — extended recall for additional model years
Issued: 2021
Kia engine — additional vehicles added to recall scope
Issued: 2021
KSDS software update recall — Knock Sensor Detection System installation
Issued: 2017–2020
Select your vehicle for a model-specific recall guide and warranty denial help.
2011–2019
Theta II 2.0L / 2.4L GDI
View recall guide
2011–2019
Theta II 2.0L / 2.4L GDI
View recall guide
2011–2019
Theta II 2.0L / 2.4L GDI
View recall guide
2018–2020
Lambda II 3.3L T-GDI
View recall guide
2012–2019
Nu 2.0L GDI / Theta II 2.0L
View recall guide
2014–2019
Nu 2.0L GDI
View recall guide
"KSDS software not installed"
Invalid as of April 2022. Kia's own policy explicitly removed KSDS installation as a prerequisite for engine bearing failure warranty coverage. This denial reason is no longer legally defensible.
"No oil change records"
The Magnuson-Moss Warranty Act (15 U.S.C. § 2302) prohibits Kia from denying your claim solely due to missing maintenance records. Kia must prove the lack of maintenance caused the failure — not just that records are missing.
"High mileage / out of warranty"
The Theta II class action settlement provides LIFETIME coverage on the engine short block with NO mileage limit. If your vehicle has 200,000 miles and the failure is Theta II-related, you are still covered.
"Engine failure not related to recall"
If your engine shows bearing wear, metal debris in oil, or rod knock — these are the exact failure modes the recall addresses. Request a written explanation of the inspection methodology and get a second opinion.
"Aftermarket parts void warranty"
Using aftermarket oil filters or parts does not void your warranty. Kia must prove the specific aftermarket part directly caused the engine failure — not just that it was used.