Hyundai Engine Settlement: Theta II Lifetime Warranty and Engine II Coverage

By CarWhere Research · Updated

Hyundai has two engine class settlements in federal court in California. The Theta II settlement gives eligible 2011–2019 Sonata, Santa Fe Sport and Tucson owners a lifetime short-block warranty once the free KSDS software is installed. The later Engine II settlement extends coverage to 15 years/150,000 miles for other Theta II MPI, Nu and Gamma engines.

Key facts

Hyundai Engine Settlement: Theta II Lifetime Warranty and Engine II Coverage: key facts with sources
ItemDetail
Theta II caseIn re: Hyundai and Kia Engine Litigation, No. 8:17-cv-00838-JLS-JDE (C.D. Cal.)[1]
Theta II final approvalMay 10, 2021; judgment entered June 10, 2021[2]
Theta II benefitLifetime warranty on the engine short block for consumer-owned vehicles that completed the KSDS update[1]
Theta II class size (Hyundai and Kia)3,956,568 vehicles[1]
Engine II caseIn re: Hyundai and Kia Engine Litigation II, No. 8:18-cv-02223-JLS-JDE (C.D. Cal.)[3]
Engine II judgmentFinal approval granted; judgment entered April 26, 2024[3]
Engine II benefitPowertrain warranty extended to 15 years/150,000 miles from original retail delivery for connecting-rod bearing damage[3]
Expired claim deadlinesTheta II: August 9, 2021. Engine II: July 8, 2024[3]
KSDS confirmationService Campaign 953 or 966 shown as completed for the VIN[4]

Theta II settlement (2.0L turbo and 2.4L GDI)

The court's May 10, 2021 final approval order defines the class vehicles as all 2011–2018 and certain 2019 Hyundai Sonata, all 2013–2018 and certain 2019 Santa Fe Sport, and all 2014–2015, 2018 and certain 2019 Tucson models. Each must be originally equipped with, or repaired with, a genuine Theta II 2.0-liter or 2.4-liter gasoline direct injection engine. A 2019 model is included only if it was built before KSDS technology was added in production. The same order covers the matching Kia models.

The class is U.S. owners and lessees. It excludes dealers, rental fleets, lienholders, buyers of vehicles previously declared a total loss, and anyone who opted out. Claims for death, personal injury, property damage and subrogation are also excluded.[1][2]

Lifetime short-block warranty and the KSDS requirement

Hyundai's settlement website says the powertrain warranty on Hyundai class vehicles is extended to a lifetime warranty on the short block: the engine block, crankshaft and bearings, connecting rods and bearings, and pistons. It covers bearing wear or damage regardless of mileage, length of ownership, or earlier engine repairs. Consumer owners must have completed the Knock Sensor Detection System (KSDS) software update, and no claim form is needed for this benefit.

KSDS is a free update that watches engine vibrations for patterns that come before bearing failure. If it detects them, the check-engine light flashes and the car goes into a reduced-power engine protection mode so it can be driven to a repair facility. Hyundai's engine information site says the related warranty extension applies to both original and subsequent owners. The order lets the warranty be denied for Exceptional Neglect, which includes not scheduling the KSDS install within 60 days of notice, and it does not apply to commercial entities such as used-car dealers or auction houses.[2][1][5][6]

Theta II reimbursements: which claims are still open

Hyundai's Theta settlement site says the deadline for most claim types, including reimbursement of past repairs and loss of value on sold vehicles, expired on August 9, 2021. Claims that stay open are tied to new events: repair-related expenses such as rental, towing and rideshare; inconvenience from repair delays; total loss of a vehicle in an engine fire; and a rebate for owners who lost faith in their vehicle and bought a replacement Hyundai.

Under the final approval order, repair delays beyond 60 days at a dealer earn a $50 goodwill payment for 61–90 days and $25 for each additional 30 days, or 150% of that amount as a dealer service card. A vehicle lost to an engine fire caused by the defect is paid at its maximum Black Book value plus a $140 goodwill payment. Coverage disputes go to arbitration run by the Better Business Bureau, paid for by the automakers.[2][1]

Engine II settlement (Theta II MPI, Nu 2.0 GDI, Gamma 1.6 GDI)

The Engine II case alleged the same kind of connecting-rod bearing defect in other engines. The official site says the court granted final approval and judgment was entered April 26, 2024. The settlement extends the Powertrain Limited Warranty to 15 years or 150,000 miles from original retail delivery for short-block or long-block damage caused by connecting-rod bearing failure. The extended term stays with the car when it is sold, but it is not available to commercial entities such as used-car dealers.

To get the Extended Warranty, the KSDS update must be done at a Hyundai dealer before any covered engine failure. Vehicles under Hyundai recalls 198 and 209 (NHTSA 20V746 and 21V727) are exempt from that requirement. For other settlement benefits, owners generally had to complete KSDS by November 4, 2023. Claims not tied to future failures expired July 8, 2024. Benefits for later failures still include towing and transportation expenses, repair-delay compensation, incidentals, total loss in a qualifying fire, and a rebate toward a replacement Hyundai.[3][7]

Related Hyundai engine recalls

Hyundai's engine information site lists four recalls for connecting-rod bearing wear: Hyundai campaigns 132, 162, 198 and 209 (NHTSA 15V568, 17V226, 20V746 and 21V727). It says dealers confirm KSDS installation through Service Campaign 953 or 966. The recalls describe engine knock, reduced power, and warning lights for check engine or oil pressure. Hyundai says a fractured connecting rod can damage the block and release oil onto hot engine parts. Related fuel-line recalls 18V934 and 20V121 cover Sonatas and Santa Fe Sports that had engine work or high-pressure fuel components.[4][5][8][9][10][11][12][13]

Theta II settlement: eligible Hyundai models

Class vehicles as defined in the May 10, 2021 final approval order.
ModelModel yearsEngine
Sonata2011–2018 and certain 2019Genuine Theta II 2.0L or 2.4L GDI
Santa Fe Sport2013–2018 and certain 2019Genuine Theta II 2.0L or 2.4L GDI
Tucson2014–2015, 2018 and certain 2019Genuine Theta II 2.0L or 2.4L GDI

2019 vehicles are included only if built before KSDS was incorporated into production. The order defines eligible engines as a genuine Theta II 2.0-liter or 2.4-liter GDI, originally installed or used as a replacement, and does not break them out by model. Source: [1][2]

Engine II settlement: eligible Hyundai models

Hyundai class vehicles listed in the Engine II settlement agreement and on the official settlement website.
ModelModel yearsEngine
Sonata Hybrid2011–2015Theta II 2.4L MPI Hybrid
Sonata Hybrid / Plug-In Hybrid2016–2019Nu 2.0L GDI Hybrid
Santa Fe2010–2012Theta II 2.4L MPI
Tucson2010–2013Theta II 2.4L MPI
Tucson2014–2021Nu 2.0L GDI
Elantra Coupe2014Nu 2.0L GDI
Elantra2014–2016Nu 2.0L GDI
Elantra GT2014–2020Nu 2.0L GDI
Veloster2012–2017Gamma 1.6L GDI

Source: [7][3]

Theta II vs. Engine II at a glance

Main terms of the two Hyundai engine settlements.
TermTheta IIEngine II
Case number8:17-cv-00838-JLS-JDE8:18-cv-02223-JLS-JDE
Warranty benefitLifetime short-block warranty15 years/150,000 miles from original retail delivery
Covered damageShort-block bearing wear or damageShort- or long-block damage from connecting-rod bearing failure
KSDS requiredYes (consumer-owned vehicles)Yes, before failure; recall 20V746/21V727 vehicles exempt
Judgment enteredJune 10, 2021April 26, 2024
Main claim deadline (passed)August 9, 2021July 8, 2024
Official sitehma-thetasettlement.comhma-e2settlement.com

Source: [1][2][3][7]

Related NHTSA recalls

NHTSA recall campaigns (campaign numbers link to NHTSA)
NHTSA campaignReportedVehiclesSummary
15V5682015-09-102011–2012 Sonata (2.0L/2.4L GDI, built at HMMA Dec. 11, 2009–Apr. 12, 2012)470,000 vehiclesMetallic debris from crankshaft machining may restrict oil flow to connecting-rod bearings, causing wear and possible engine stall. Hyundai campaign 132.
17V2262017-03-312013–2014 Sonata, Santa Fe Sport572,000 vehiclesMachining errors during engine manufacturing may cause premature bearing wear and engine seizure. Hyundai campaign 162.
18V9342018-12-282011–2014 Sonata, 2013–2014 Santa Fe Sport repaired under 15V-568 or 17V-226150,730 vehiclesThe high-pressure fuel pipe may have been damaged, misaligned or improperly torqued during engine replacement, allowing a fuel leak.
20V1212020-02-282013–2014 Sonata216,799 vehiclesThe low-pressure fuel hose to the direct-injection fuel pump may crack over time from engine-bay heat.
20V7462020-12-012015–2016 Veloster, 2012 Santa Fe, 2011–2013 and 2016 Sonata Hybrid128,948 vehiclesConnecting-rod bearings may wear prematurely, which can damage the engine and cause a stall or fire. Hyundai campaign 198; exempt from the Engine II KSDS requirement.
21V7272021-09-172017 Tucson, 2017 Sonata Hybrid95,515 vehiclesConnecting-rod bearings may wear prematurely, which can damage the engine and cause a stall or fire. Hyundai campaign 209; exempt from the Engine II KSDS requirement.

How to check eligibility and protect your coverage

  1. Find your model, model year and engine in the tables above. The VIN tool on hyundaiengineinfo.com shows which engine recalls and campaigns apply.
  2. In the VIN results, look for recalls 132, 162, 198 and 209 and confirm they are complete. KSDS is confirmed by Service Campaign 953 or 966.
  3. If KSDS or a recall is listed under Open Campaigns, book a Hyundai dealer appointment. Both are free.
  4. Keep oil-change and maintenance records. Coverage can be denied for Exceptional Neglect.
  5. For a new engine failure, fire, or repair delay, use the Submit Claim page on the relevant settlement site (hma-thetasettlement.com or hma-e2settlement.com) and check the time limit that applies to that claim type.[4][2][3][1]

The settlement agreements and court orders control over any summary, including this one.

Related research

Check how a specific Hyundai was built.

Engine, trim and factory equipment are part of the build record for the VIN. The CarWhere Hyundai build sheet reconstructs factory colors, options and packages from licensed VIN-level build data — availability is checked free, and it is $9.99 only when detailed build data is found for that VIN.

Hyundai build sheet by VIN

Frequently asked questions

Is the Hyundai engine settlement still open?

The warranty benefits are ongoing. Theta II gives a lifetime short-block warranty, and Engine II gives 15 years/150,000 miles from original delivery. The main claim deadlines have passed: August 9, 2021 for Theta II and July 8, 2024 for Engine II. Claims tied to new failures, fires or repair delays remain available under each settlement's terms.

Do I need to file a claim to get the lifetime engine warranty?

No. Hyundai's Theta settlement site says the lifetime short-block warranty applies to class vehicles owned by individual consumers that have completed the KSDS software update. A claim form is needed only for reimbursements and other payments.

What is the KSDS update?

The Knock Sensor Detection System is free software that monitors engine vibration for signs of connecting-rod bearing wear. If it detects them, the check-engine light flashes and the car goes into a reduced-power engine protection mode. Hyundai lists Service Campaign 953 or 966 as KSDS confirmation.

Does the settlement warranty transfer if I buy a used Sonata or Tucson?

The Theta II lifetime warranty covers bearing damage regardless of how long the car has been owned, as long as KSDS is installed and the owner is not a commercial entity. The Engine II site says the 15-year/150,000-mile warranty stays in effect after a change of ownership and transfers to later owners for personal use.

Which Hyundai engines are in Engine II?

The 2.4L Theta II MPI (2011–2015 Sonata Hybrid, 2010–2012 Santa Fe, 2010–2013 Tucson), the 2.0L Nu GDI (2016–2019 Sonata Hybrid/PHEV, 2014–2021 Tucson, 2014 Elantra Coupe, 2014–2016 Elantra, 2014–2020 Elantra GT) and the 1.6L Gamma GDI (2012–2017 Veloster).

Sources

Descriptions are CarWhere’s own summaries of the documents below. Program terms can change; the linked official pages are authoritative.

  1. Order Granting Final Approval of Class Action Settlement and Attorneys' Fees, In re: Hyundai and Kia Engine Litigation, No. 8:17-cv-00838-JLS-JDE, Doc. 202 (C.D. Cal. May 10, 2021) — U.S. District Court, Central District of California (hosted on kiaenginesettlement.com)
  2. Hyundai Theta Engine Settlement: official settlement website (In re: Hyundai and Kia Engine Litigation, No. 8:17-cv-00838-JLS-JDE; Flaherty v. Hyundai Motor Company, No. 18-cv-02223, C.D. Cal.) — Settlement administrator (Angeion Group) for Hyundai Motor America
  3. Hyundai Engine II Class Action Settlement: official settlement website (In re: Hyundai and Kia Engine Litigation II, No. 8:18-cv-02223-JLS-JDE, C.D. Cal.) — Settlement administrator (Angeion Group) for Hyundai Motor America
  4. Hyundai Engine Recall and Knock Sensor Detection System (KSDS) Software Update Information — Hyundai Motor America (hyundaiengineinfo.com)
  5. Hyundai Engine Recalls for Risk of Engine Failure and Engine Fire — Hyundai Motor America (hyundaiengineinfo.com)
  6. KSDS Software Update: Engine Monitoring Technology and Extended Warranty — Hyundai Motor America (hyundaiengineinfo.com)
  7. Settlement Agreement, In re: Hyundai and Kia Engine Litigation II, No. 8:18-cv-02223-JLS-JDE, Doc. 79-2 (filed Sept. 26, 2022) — U.S. District Court, Central District of California (hosted on hma-e2settlement.com)
  8. NHTSA recall 15V568: Connecting rod wear may result in engine stall (2011–2012 Sonata) — NHTSA (Hyundai Motor America filing)
  9. NHTSA recall 17V226: Bearing wear may result in engine seizure (2013–2014 Sonata, Santa Fe Sport) — NHTSA (Hyundai Motor America filing)
  10. NHTSA recall 20V746: Engine damage may cause stall or fire (2015–2016 Veloster, 2012 Santa Fe, 2011–2013 and 2016 Sonata Hybrid) — NHTSA (Hyundai Motor America filing)
  11. NHTSA recall 21V727: Engine damage may cause stall or fire (2017 Tucson, 2017 Sonata Hybrid) — NHTSA (Hyundai Motor America filing)
  12. NHTSA recall 18V934: High-pressure fuel pipe may leak (engines replaced under 15V-568/17V-226) — NHTSA (Hyundai Motor America filing)
  13. NHTSA recall 20V121: Low-pressure fuel hose may crack and leak (2013–2014 Sonata) — NHTSA (Hyundai Motor America filing)

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