Owners report fuel system failures ranging from slow leaks to sudden fires, along with stalling and loss of power. Low-pressure fuel hose leaks appear in complaints tied to recalls 20V121000 and 22V312000. Some owners describe detecting fuel odor inside the cabin or under the hood; others report the vehicle stalling mid-drive without warning, requiring towing. A handful describe catastrophic fires—one at 92,000 miles with the vehicle destroyed, another at 170,000 miles causing roll-over and serious injury. High-pressure fuel pump failures and fuel pump leaks show up in multiple complaints, sometimes after dealer attempted repairs. Several owners cite diagnostic codes related to low fuel pressure or engine power issues, though mechanics and dealers sometimes misdiagnose the root cause. Check engine lights illuminate frequently when fuel system issues occur. The biggest recurring complaint is parts unavailability: dozens of owners received recall notifications for 20V121000 or 22V312000 but dealers confirm repair parts remain unavailable months or years after notification, leaving vehicles undrivable or unsafe while recalls sit incomplete. Many owners report dealers cannot schedule appointments until months later, and Hyundai has not provided firm timelines for parts delivery. Two owners noted unperformed recalls at the time of used-car sale.
Failure modes owners describe
Low-pressure fuel hose leak
Fuel leaks from low-pressure hose in engine compartment or fuel line. Owners detect strong gasoline odor inside cabin or under hood, sometimes smoke or visible fuel dripping onto engine.
When: 70,000–192,000 miles
Symptoms owners cite: Strong gasoline odor inside cabin; Fuel odor under the hood; Smoke from under hood; Visible fuel leaking onto engine; Check engine warning light illuminated
Repairs/costs cited: Low-pressure fuel hose replaced under recalls 20V121000 and 22V312000; however, in complaint #12 the hose was replaced but failure recurred within two months with different component failing.
Recalls/TSBs owners mention: NHTSA recalls 20V121000 (Fuel System, Gasoline) and 22V312000 (Fuel System, Gasoline) issued for defective low-pressure fuel hose. However, repair parts reported unavailable across dozens of complaints; owners advised to wait with no confirmed timeline. Some dealers rejected service due to parts unavailability.
High-pressure fuel pump (HPFP) leak or failure
High-pressure fuel pump or high-pressure fuel pipe develops leak or fails, causing fuel odor and potential stalling. Sometimes occurs after low-pressure hose replacement.
When: 81,000–190,000 miles
Symptoms owners cite: Fuel odor inside cabin; Fuel leak at high-pressure fuel pump; Vehicle stalling; Check engine warning light illuminated
Repairs/costs cited: High-pressure fuel pump or high-pressure fuel pipe replaced; in complaint #41 repair was completed. In complaint #12, HPFP replacement was diagnosed as needed but not completed.
Recalls/TSBs owners mention: Not directly addressed in narratives; owners sought independent mechanic diagnosis and dealer evaluation.
Fuel pump failure or low fuel pressure
Fuel pump fails to deliver adequate pressure, causing hesitation, stalling, or loss of power. Some owners report engine knocking alongside pump failure.
When: 80,000–125,000 miles
Symptoms owners cite: Vehicle stalls or loses power while driving; Engine hesitation during acceleration; Engine knocking noise; Check engine warning light illuminated; Vehicle unable to restart; Low fuel level warning light remains illuminated after refueling
Codes mentioned: Low pressure or low power diagnostic (complaint #8, mechanic unsure of exact code)
Repairs/costs cited: Owners cite diagnosis of failed fuel pump needing replacement; in complaint #8 dealer identified fuel pump failure but did not complete repair. In complaint #25, fuel pump failed after recall repair was supposedly completed.
Recalls/TSBs owners mention: Complaints associated with recalls 17V226000 (Engine) and 20V121000 (Fuel System, Gasoline). In complaint #25, manufacturer opened case after fuel pump failed post-recall repair.
Fire or severe overheating
Vehicle catches fire or emits heavy smoke from engine compartment, typically during driving. Can result from fuel leak or electrical ignition of leaking fuel.
When: 92,000–192,000 miles
Symptoms owners cite: White smoke emitting from engine; Flames visible from under instrument panel or hood; Sizzling sound from engine; Strong fuel odor preceding fire; Fire department called to extinguish flames
Repairs/costs cited: Vehicles destroyed; no repairs completed. Insurance declared vehicles total loss.
Recalls/TSBs owners mention: Recall 22V312000 (Fuel System, Gasoline) issued for defective low-pressure fuel hose that can leak and cause fires. In complaint #1, unrepaired recall 22V312000 was outstanding. In complaint #7, recall 22V312000 was issued but not performed before used-car sale.
Vehicle stalling without warning
Engine stalls suddenly while driving at various speeds, with no warning light in some cases. Vehicle may or may not restart. Can occur after fuel system repair.
When: 8,000–168,000 miles
Symptoms owners cite: Engine stalls without warning while driving; Vehicle unable to restart or difficult to restart; Engine deceleration without driver input; Check engine warning light may or may not be illuminated; Loss of motive power
Repairs/costs cited: In complaint #25, stalling occurred two days after recall repair was reportedly completed. Multiple owners did not pursue diagnosis or repair.
Recalls/TSBs owners mention: Complaints cross-referenced to recalls 20V121000 and 22V312000 (Fuel System, Gasoline) and 17V226000 (Engine). Manufacturer advised one owner to obtain diagnostic test at separate dealer.
Knocking noise and coolant warning light
Engine produces abnormal knocking sound, sometimes with low coolant warning light and white smoke. Occurred after engine replacement under recall.
When: 196,000 miles
Symptoms owners cite: Abnormal knocking sound from engine; Low coolant warning light illuminated; White smoke from engine; Vehicle shuts off immediately after startup; Knocking worsens when switching to higher octane fuel
Repairs/costs cited: Dealer attributed knocking to wrong fuel type and advised using 89 octane instead of 87; problem persisted and worsened. Vehicle not repaired.
Recalls/TSBs owners mention: Recall 18V934000 (Engine, Fuel System, Gasoline) covered engine replacement; however, replacement engine or installation procedure may have introduced new defect.
Delayed or unavailable parts for recall repair
Owners receive recall notification but repair parts remain unavailable for months or years after notification. Dealers confirm parts not in stock and cannot schedule appointments. Manufacturer cannot confirm delivery timeline.
When: Multiple years after recall notification (2020–2025)
Symptoms owners cite: Recall notification received; Dealer confirms parts unavailable for recall repair; Earliest appointment offered months into future; Manufacturer cannot confirm when parts will be available; Vehicle remains unrepaired and potentially unsafe
Repairs/costs cited: Dozens of complaints cite parts unavailability for recalls 20V121000 and 22V312000. Some owners report manufacturer referred them back to dealer with no assistance. VIN tool confirms parts not available in many cases.
Recalls/TSBs owners mention: Recalls 20V121000 and 22V312000 issued but remedy parts in chronic shortage. Manufacturer acknowledged issue in some complaints but provided no timeline or alternative remedy. One used-car purchaser reported recall 22V312000 was outstanding at time of sale despite being issued August 31, 2022.
Synthesized from 71 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.