2025 Hyundai Palisade Lemon Law Case Study — Massachusetts
A Brand-New 2025 Hyundai Palisade With Recurring Cylinder Misfires, A Faulty Fuel Injector Harness, A MAP Sensor Circuit Fault (DTC P0105), And A Burning-Coolant Event That Spent More Than 80 Cumulative Days Out Of Service Across Seven Warranty Visits
Our client leased a brand-new 2025 Hyundai Palisade from an authorized Massachusetts Hyundai dealership in 2024 — Hyundai’s flagship three-row family SUV and the highest trim positioning in the Hyundai US lineup, sold and leased at a premium specifically for the family-vehicle dependability promise behind the brand. The vehicle had just 6 miles on the odometer at lease signing. Within 2,009 miles the check engine light was on for the first time, kicking off a chain of seven warranty visits over the next ten months for a recurring engine misfire pattern that Hyundai Motor America could not permanently repair.
Across those seven visits, technicians replaced the Cylinder 6 ignition coil, replaced the injector assembly fuel pipe crossover, diagnosed faulty fuel injectors and a faulty left-hand injector harness, ordered both high and low fuel pipe assemblies, recorded a burning-coolant smell, and stored DTC P030600 (Cylinder 6 misfire), DTC P0105 (manifold absolute pressure / barometric pressure circuit malfunction), and multiple additional cylinder misfire codes. Two of the seven visits individually exceeded the entire Massachusetts 15-business-day cumulative-out-of-service threshold on their own — Visit 4 (42 calendar days, June 16 – July 28, 2025) and Visit 6 (36 calendar days, August 25 – September 30, 2025).
What Went Wrong
- Recurring Cylinder 6 misfire — stored DTC P030600: Cylinder 6 ignition coil replaced at Visit 3 (May 28–30, 2025), but the misfire pattern continued and re-emerged across later visits as multiple cylinder misfire codes
- Faulty fuel injectors — replaced: Fuel injectors diagnosed as faulty and replaced at Visit 4 (June 16 – July 28, 2025) after the vehicle was found misfiring — despite the prior Cylinder 6 ignition coil replacement
- Faulty left-hand injector harness — replaced: The LH injector harness was diagnosed as faulty alongside the injectors and replaced at Visit 4 — a wiring-side defect, not just a component-side defect
- Injector assembly fuel pipe crossover — replaced: The fuel pipe crossover was replaced at Visit 4, with the injector harness, crossover pipe, and both high and low fuel pipe assemblies placed on order
- MAP sensor / manifold absolute pressure circuit fault — DTC P0105 stored: At Visit 6 (August 25 – September 30, 2025), the check engine light returned with P0105 (MAP sensor circuit malfunction) plus multiple cylinder misfire codes — meaning the underlying misfire pattern was never permanently fixed
- Burning-coolant event: The customer reported smelling burning coolant on August 7, 2025 — a symptom commonly associated with head gasket, cooling-system, or upper engine sealing defects on a port-injection V6 platform
- Vehicle sluggish with check engine light: At Visit 7 (September 23, 2025) the CEL was on again and the vehicle was reported as sluggish — the misfire / fuel-delivery / MAP-sensor pattern had clearly not been permanently corrected despite all the prior parts replacements
Seven Visits Could Not Resolve The Misfire And Fuel Delivery Defects
Visit 1 — December 17, 2024
- Check engine light active — the first warranty event on a vehicle delivered with just 6 miles on the odometer
- Technician cleared the code and test-drove the vehicle, no problems found on the test drive
- No root-cause repair documented — clear-and-return disposition is itself a manufacturer-level admission that the defect was not isolated
Visit 2 — March 27, 2025
- Check engine light returned — intermittent cylinder misfire reported
- Technician performed a fuel quality test — reported as “bad fuel”
- No engine-side repair performed despite the documented intermittent misfire concern
Visit 3 — May 28–30, 2025 (3 Days)
- Check engine light active with confirmed Cylinder 6 misfire — stored DTC P030600
- Cylinder 6 ignition coil removed and replaced
- This was the first parts-level engine repair on the vehicle — the misfire pattern would re-emerge in later visits despite the coil replacement
Visit 4 — June 16 – July 28, 2025 (42 Days)
- The vehicle was found misfiring again despite the prior Cylinder 6 ignition coil replacement
- Technicians diagnosed the fuel injectors and the left-hand injector harness as faulty
- The injector assembly fuel pipe crossover was replaced
- The injector harness, crossover pipe, and both high and low fuel pipe assemblies were ordered — the entire fuel-delivery rail was treated as defective
- This single visit (42 calendar days) by itself exceeds the Massachusetts 15-business-day cumulative-out-of-service threshold
Visit 5 — August 7, 2025
- Customer reported smelling burning coolant — a symptom commonly associated with head gasket, intake manifold gasket, or cooling-system sealing failure
- This event followed immediately after the major Visit 4 fuel-system teardown — cascading-defect pattern
Visit 6 — August 25 – September 30, 2025 (36 Days)
- Check engine light on, customer concern confirmed by technicians
- Stored DTC P0105 (MAP sensor / manifold absolute pressure circuit malfunction) plus multiple cylinder misfire codes
- The recurrence of misfire codes here — after the Cylinder 6 ignition coil replacement at Visit 3 and the complete fuel-injector and injector-harness replacement at Visit 4 — established that Hyundai Motor America could not permanently repair the underlying engine misfire / fuel-delivery / sensor pattern
- This visit alone (36 calendar days) also exceeds the Massachusetts 15-business-day cumulative-out-of-service threshold on its own
Visit 7 — September 23, 2025
- Check engine light back on, vehicle reported as sluggish
- The same misfire / fuel-delivery / MAP-sensor pattern had returned despite the prior repairs at Visits 3, 4, and 6
- At this point — seven repair attempts and 85 cumulative days out of service — a lemon law claim was the only viable path to a permanent remedy
Why This Hyundai Palisade Qualified For A Full Buyback Under Massachusetts Law
The 2025 Hyundai Palisade is Hyundai’s flagship three-row family SUV, leased at a premium specifically because of the dependability promise that comes with a brand-new family vehicle covered by Hyundai’s factory new-vehicle warranty and federal emission-control durability warranty. When the engine repeatedly misfires — despite ignition coil replacement, fuel injector replacement, injector harness replacement, fuel pipe crossover replacement, and ordering of both high and low fuel pipe assemblies — the nonconformity strikes at every element of Massachusetts’s lemon law: use, market value, and safety.
This case presented several compelling legal factors:
- Massachusetts Lemon Law eligibility (Mass. Gen. Laws ch. 90, § 7N½): Massachusetts protects new-vehicle buyers and lessees within a one-year / 15,000-mile term of protection. A vehicle qualifies where the manufacturer cannot conform the vehicle to its express warranty after a reasonable number of attempts — specifically, where the same nonconformity has been the subject of three or more repair attempts, or where the vehicle has been out of service for a cumulative total of 15 or more business days. This Palisade was documented out of service for more than 85 cumulative calendar days across seven visits within the first year of the lease — roughly 4x the Massachusetts statutory threshold under any reasonable business-day conversion.
- Two single visits each exceed the entire MA prong on their own: Visit 4 (June 16 – July 28, 2025) was 42 calendar days, and Visit 6 (August 25 – September 30, 2025) was 36 calendar days. Each one, standing alone, clears the Massachusetts 15-business-day cumulative-out-of-service threshold — before adding the other five visits.
- Same-defect prong satisfied multiple times over: The recurring engine misfire / fuel-delivery / MAP-sensor pattern was the subject of repair attempts at Visits 2, 3, 4, 6, and 7 — five documented attempts on the same nonconformity, vs Massachusetts’s three-attempt presumption. Multiple parts-level repairs (Cylinder 6 ignition coil at Visit 3; fuel injectors, injector harness, and fuel pipe crossover at Visit 4) failed to permanently resolve the underlying pattern, which re-emerged with multiple cylinder misfire codes plus DTC P0105 at Visit 6.
- Cascading-defect pattern: The burning-coolant event at Visit 5 emerged immediately following the major Visit 4 fuel-system teardown — a cascading-defect pattern, which is exactly what the Massachusetts Lemon Law and federal Magnuson-Moss are designed to address.
- Federal emission-control system warranty: Cylinder misfires (DTC P030600 and multiple cylinder misfire codes) and MAP sensor circuit faults (DTC P0105) are emission-control-system events that trigger the federal EPA emission durability warranty under 40 CFR Part 86 (8 years / 80,000 miles on emission-related components) on top of Hyundai’s 10-year / 100,000-mile powertrain warranty.
- Federal Magnuson-Moss Warranty Act: Repeated unsuccessful warranty repairs on a written-warranty nonconformity also triggered a federal breach-of-warranty claim, adding attorney-fee shifting pressure against Hyundai Motor America on top of the Massachusetts state remedy. The fee-shifting provision means our client paid $0 out of pocket regardless of settlement type.
- Lease framework does not weaken the claim: Massachusetts’s statute expressly covers lessees, and on a lemon lease the buyback unwinds the transaction — refunding down payment, monthly lease payments, sales tax, registration, and incidentals minus a mileage-based use allowance.
How Easy Lemon Secured A Full Vehicle Buyback
Free Case Evaluation
We reviewed the complete repair history and confirmed seven separate documented service events — five of them addressing the same recurring engine misfire / fuel-delivery / sensor pattern — all inside the first year of the Massachusetts lease and well within the protected 1-year / 15,000-mile statutory window.
Documentation & Case Building
Our team compiled every repair order, stored DTC (P030600 Cylinder 6 misfire, P0105 MAP sensor circuit malfunction, plus multiple cylinder misfire codes), every replaced part (Cylinder 6 ignition coil, fuel injectors, left-hand injector harness, injector assembly fuel pipe crossover), every ordered part (high and low fuel pipe assemblies), and every dealer notation (the burning-coolant event, the “sluggish” observation at Visit 7) into an airtight timeline showing Hyundai Motor America’s inability to permanently repair the vehicle.
Demand To Hyundai Motor America
We filed a formal demand against Hyundai Motor America citing the Massachusetts New Car Lemon Law (Mass. Gen. Laws ch. 90, § 7N½) and the federal Magnuson-Moss Warranty Act — documenting seven failed repair attempts, 85 cumulative days out of service (with two single visits each individually exceeding the 15-business-day prong), a recurring engine misfire pattern across five visits, and the federal EPA emission durability warranty implications of the cylinder misfire and MAP sensor circuit DTCs.
Full Vehicle Buyback
Easy Lemon successfully secured a full Vehicle Buyback from Hyundai Motor America — the strongest possible outcome on a lemon lease and a full statutory victory under Mass. Gen. Laws ch. 90, § 7N½. The manufacturer repurchased the defective Palisade, unwound the lease, and our client paid nothing out of pocket for legal representation.
Full Vehicle Buyback Secured
Key Case Facts
- Vehicle: 2025 Hyundai Palisade
- Leased in: Massachusetts (authorized Hyundai dealership)
- Status at lease: Brand new (6 miles at lease signing)
- Mileage at first repair: 2,009 miles
- Current mileage: 11,000 miles (well inside the 1-year / 15,000-mile MA term of protection)
- Primary defects: Recurring Cylinder 6 misfire (DTC P030600), multiple cylinder misfire codes, MAP sensor circuit fault (DTC P0105), faulty fuel injectors, faulty left-hand injector harness, fuel pipe crossover assembly replaced, both high and low fuel pipe assemblies ordered, burning-coolant event, sluggish drivability
- Repair attempts: 7 visits to an authorized Hyundai dealership
- Days out of service: 85 cumulative days (Visit 4 alone: 42 days; Visit 6 alone: 36 days — each individually exceeds the MA 15-business-day prong)
- Manufacturer: Hyundai Motor America
- Settlement type: Vehicle Buyback — full manufacturer repurchase, lease unwound
Results may vary. Prior outcomes do not guarantee a similar result. Each case is unique and depends on its specific facts and applicable law. Attorney advertising. Easy Lemon® by RockPoint Law P.C.
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Attorney on Record
Steven Nassi, Esq.
Managing Partner — Easy Lemon by RockPoint Law P.C.
Licensed attorney specializing exclusively in lemon law across all 50 states. Steven leads the Easy Lemon legal team and has overseen thousands of successful lemon law claims against major manufacturers including Hyundai Motor America, General Motors, Stellantis, Mercedes-Benz, BMW, and more.
Having Problems With Your Hyundai Palisade?
Recurring cylinder misfires, faulty fuel injectors or injector harnesses, stored DTCs P030600 or P0105, or a check engine light that keeps coming back on the family SUV you trusted are unacceptable — and in Massachusetts, you may already qualify for a full buyback. Free case evaluation — 30 seconds.
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