2022 Hyundai Elantra problems

UNKNOWN OR OTHER

I own a 2022 Hyundai Elantra N Line. The HVAC system began malfunctioning when the center/forward-facing dashboard vents stopped producing airflow, while the side vents continued to work. Changing the HVAC mode does not properly redirect airflow to the center vents as intended. The vehicle was inspected and diagnosed, and I was informed that the ventilator lever/mode mechanism is broken or not functioning properly. This appears consistent with a known issue described in Hyundai Technical Service Bulletin 25-HA-001H/26-HA-001H concerning the ventilator lever and loss of airflow from the forward-facing center vents. This failure affects my ability to properly control where air is directed inside the vehicle, including directing airflow toward the windshield for defrosting/defogging. This could potentially reduce visibility in conditions where windshield defrosting is necessary and therefore create a safety concern. The problem has been confirmed through a vehicle diagnostic inspection. The vehicle/component is available for inspection upon request. I have also found other Hyundai Elantra owners reporting similar loss of center-vent airflow and HVAC mode-control problems. The issue occurred without a collision or other known event that would have caused the component to fail. The repair is also unusually labor-intensive because the failed ventilator lever is located behind the dashboard and requires extensive disassembly just to access the component. I was informed that the repair would require at least 14 hours of labor, resulting in an extremely high repair cost for what is essentially a small mechanical component. The amount of labor required to reach and replace the lever makes the repair disproportionately expensive. Additionally, I have encountered multiple other Hyundai Elantra owners reporting the same or very similar symptoms, including loss of airflow from the center/forward-facing vents while the side vents continue to function. Suggests occurring issues.

NHTSA complaint #11757990 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Horn not functioning. Engine mount needs replacement.

NHTSA complaint #11757824 — an unverified report by a vehicle owner.

ENGINE

Horn not functioning. Engine mount needs replacement.

NHTSA complaint #11757824 — an unverified report by a vehicle owner.

POWER TRAIN

Transmission slippage, near failure, unable to accelerate safely past 20mph. Need to floor the gas peddle which causes me to go over the desired speed.

NHTSA complaint #11755080 — an unverified report by a vehicle owner.

POWER TRAIN

I own a 2022 Hyundai Elantra with only 72,000 miles my check engine light came on for the code p048900 for the Egr valve. It is no longer covered by any warranties but other year models have been recalled due to the same issue.

NHTSA complaint #11754616 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I own a 2022 Hyundai Elantra with only 72,000 miles my check engine light came on for the code p048900 for the Egr valve. It is no longer covered by any warranties but other year models have been recalled due to the same issue.

NHTSA complaint #11754616 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

I own a 2022 Hyundai Elantra with only 72,000 miles my check engine light came on for the code p048900 for the Egr valve. It is no longer covered by any warranties but other year models have been recalled due to the same issue.

NHTSA complaint #11754616 — an unverified report by a vehicle owner.

POWER TRAIN

Federal Safety Recall Fraud and Vehicle Endangerment Report Vehicle: 2022 Hyundai Elantra Blue Hybrid | Involved Dealerships: Earnhardt Hyundai North Scottsdale & Larry H. Miller Hyundai Peoria This complaint documents severe federal safety recall fraud and mechanical endangerment by authorized manufacturer franchise dealerships. In April 2025, Earnhardt Hyundai took physical possession of my vehicle for a federally mandated Hydraulic Electronic Control Unit (HCU) braking/cruise control safety recall. Staff verbally verified the recall was complete, but the physical invoice and subsequent written email admission from Service Drive Manager [XXX] confirmed the safety repair was completely omitted with "no excuse."To resolve this braking risk, on April 22, 2026, I brought the vehicle to Larry H. Miller Hyundai Peoria to have the uncompleted HCU safety recall corrected. Subsequently, on June 17, 2026, I returned to the Peoria facility for a warranty deck lid repair and a scheduled oil change.Upon releasing the vehicle on June 17, the Peoria service department actively jeopardized my hybrid engine integrity by installing an incorrect, out-of-spec oil fluid weight (5W30) and releasing the vehicle with a completely loose, unsealed engine oil cap. This gross negligence forced me into a dangerous 140-mile high-altitude mountain highway transit ([XXX] to Flagstaff) with a compromised engine bay, creating an immediate engine fire hazard and risk of sudden highway power failure. The loose cap and incorrect fluid were independently verified and caught on video by Milestone Auto Repair in Flagstaff.The manufacturer's franchise network is falsifying federally mandated safety recall records and releasing vehicles in life-threatening, non-compliant conditions. I'm requesting an immediate NHTSA investigation on both dealerships. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11745832 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Federal Safety Recall Fraud and Vehicle Endangerment Report Vehicle: 2022 Hyundai Elantra Blue Hybrid | Involved Dealerships: Earnhardt Hyundai North Scottsdale & Larry H. Miller Hyundai Peoria This complaint documents severe federal safety recall fraud and mechanical endangerment by authorized manufacturer franchise dealerships. In April 2025, Earnhardt Hyundai took physical possession of my vehicle for a federally mandated Hydraulic Electronic Control Unit (HCU) braking/cruise control safety recall. Staff verbally verified the recall was complete, but the physical invoice and subsequent written email admission from Service Drive Manager [XXX] confirmed the safety repair was completely omitted with "no excuse."To resolve this braking risk, on April 22, 2026, I brought the vehicle to Larry H. Miller Hyundai Peoria to have the uncompleted HCU safety recall corrected. Subsequently, on June 17, 2026, I returned to the Peoria facility for a warranty deck lid repair and a scheduled oil change.Upon releasing the vehicle on June 17, the Peoria service department actively jeopardized my hybrid engine integrity by installing an incorrect, out-of-spec oil fluid weight (5W30) and releasing the vehicle with a completely loose, unsealed engine oil cap. This gross negligence forced me into a dangerous 140-mile high-altitude mountain highway transit ([XXX] to Flagstaff) with a compromised engine bay, creating an immediate engine fire hazard and risk of sudden highway power failure. The loose cap and incorrect fluid were independently verified and caught on video by Milestone Auto Repair in Flagstaff.The manufacturer's franchise network is falsifying federally mandated safety recall records and releasing vehicles in life-threatening, non-compliant conditions. I'm requesting an immediate NHTSA investigation on both dealerships. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11745832 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Federal Safety Recall Fraud and Vehicle Endangerment Report Vehicle: 2022 Hyundai Elantra Blue Hybrid | Involved Dealerships: Earnhardt Hyundai North Scottsdale & Larry H. Miller Hyundai Peoria This complaint documents severe federal safety recall fraud and mechanical endangerment by authorized manufacturer franchise dealerships. In April 2025, Earnhardt Hyundai took physical possession of my vehicle for a federally mandated Hydraulic Electronic Control Unit (HCU) braking/cruise control safety recall. Staff verbally verified the recall was complete, but the physical invoice and subsequent written email admission from Service Drive Manager [XXX] confirmed the safety repair was completely omitted with "no excuse."To resolve this braking risk, on April 22, 2026, I brought the vehicle to Larry H. Miller Hyundai Peoria to have the uncompleted HCU safety recall corrected. Subsequently, on June 17, 2026, I returned to the Peoria facility for a warranty deck lid repair and a scheduled oil change.Upon releasing the vehicle on June 17, the Peoria service department actively jeopardized my hybrid engine integrity by installing an incorrect, out-of-spec oil fluid weight (5W30) and releasing the vehicle with a completely loose, unsealed engine oil cap. This gross negligence forced me into a dangerous 140-mile high-altitude mountain highway transit ([XXX] to Flagstaff) with a compromised engine bay, creating an immediate engine fire hazard and risk of sudden highway power failure. The loose cap and incorrect fluid were independently verified and caught on video by Milestone Auto Repair in Flagstaff.The manufacturer's franchise network is falsifying federally mandated safety recall records and releasing vehicles in life-threatening, non-compliant conditions. I'm requesting an immediate NHTSA investigation on both dealerships. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11745832 — an unverified report by a vehicle owner.

BACK OVER PREVENTION: WARNINGS

Backup camera shows only black screen with dark gray guidelines with display moving across the screen then resetting to start moving again. No availability visible for backing up.

NHTSA complaint #11741204 — an unverified report by a vehicle owner.

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

Backup camera shows only black screen with dark gray guidelines with display moving across the screen then resetting to start moving again. No availability visible for backing up.

NHTSA complaint #11741204 — an unverified report by a vehicle owner.

ENGINE

Description of Incident: The vehicle is experiencing significant engine oil dilution by gasoline. Upon inspection of the dipstick, the oil level is consistently found to be well above the "Full" mark, and the oil emits a strong, pungent odor of raw fuel. This indicates that unburnt gasoline is bypassing the piston rings and entering the crankcase during normal operation, particularly in colder temperatures or during hybrid engine cycling. Safety Risk: The dilution of engine oil with fuel significantly reduces the oil's viscosity and lubricating properties. This creates a high risk of premature engine wear, rod bearing failure, and sudden engine seizure or stalling while the vehicle is in motion. A sudden loss of motive power at highway speeds poses a severe crash hazard to myself and other motorists. Attempts to Correct: I have noted that similar Hyundai models using the 1.6L platform (such as the Tucson Hybrid via TSB 23-EE-002H) have received software updates to address this specific issue. However, when contacting the dealer regarding my Elantra Hybrid, I was informed that no such software fix or service campaign currently exists for the CN7 Elantra model, leaving the safety defect unaddressed. Expected Resolution: Hyundai should be required to issue a recall or technical service bulletin for the Elantra Hybrid to update the Engine Control Unit (ECU) logic, ensuring the engine reaches and maintains temperatures necessary to prevent fuel accumulation in the oil.

NHTSA complaint #11735854 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2022 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. Additionally, there was an abnormally strong gasoline odor coming from the vehicle. The vehicle was taken to an independent mechanic; however, the vehicle was not formally diagnosed. The contact was informed that there was a crack in the engine, causing a leak. The vehicle was then taken to the dealer, but it was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 23,825.

NHTSA complaint #11730787 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The horn on my vehicle all of a sudden does not work. Im afraid that i'll be in a accident because im unable to blow it. Plenty times ive almost been in a accident & it was literally nothing i could do because my horn isnt working. secondly, something is going in with the suspension on the right side of my car. Too much rattling noise. I see in the complaints im not the only one having this issue. third but not least, the ac isnt working. blowing out hot air. ive also seen where alot of people is complaining about that Ive had this car only a year and it has too many recall issues.

NHTSA complaint #11718975 — an unverified report by a vehicle owner.

SUSPENSION

The horn on my vehicle all of a sudden does not work. Im afraid that i'll be in a accident because im unable to blow it. Plenty times ive almost been in a accident & it was literally nothing i could do because my horn isnt working. secondly, something is going in with the suspension on the right side of my car. Too much rattling noise. I see in the complaints im not the only one having this issue. third but not least, the ac isnt working. blowing out hot air. ive also seen where alot of people is complaining about that Ive had this car only a year and it has too many recall issues.

NHTSA complaint #11718975 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The horn on my vehicle all of a sudden does not work. Im afraid that i'll be in a accident because im unable to blow it. Plenty times ive almost been in a accident & it was literally nothing i could do because my horn isnt working. secondly, something is going in with the suspension on the right side of my car. Too much rattling noise. I see in the complaints im not the only one having this issue. third but not least, the ac isnt working. blowing out hot air. ive also seen where alot of people is complaining about that Ive had this car only a year and it has too many recall issues.

NHTSA complaint #11718975 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Vehicle: 2022 Hyundai N Line Mileage at Initial Incident: ~17,000 miles Components Involved: Engine and Engine Cooling; Exhaust System / Emissions; Air Bags (SRS) I am submitting this complaint to document unresolved emissions system and Supplemental Restraint System (SRS) safety concerns involving my 2022 Hyundai N Line, as well as the manufacturer’s refusal to ensure proper diagnosis and corrective action following a documented dealer service error and subsequent warranty repair. At approximately 17,000 miles, a Hyundai-authorized dealership failed to reinstall an engine oil seal during a routine oil change. This error caused rapid engine oil loss at highway speed, activation of the oil warning system, and oil discharge onto the roadway. The incident is documented in Hyundai service records and is not disputed. Sudden oil-loss events of this nature are known to cause latent or progressive damage to internal engine components and federally regulated emissions systems, even when immediate engine failure does not occur. Despite proper maintenance after this incident, the vehicle subsequently set DTC P0420 (Catalyst System Efficiency Below Threshold – Bank 1) at a mileage far below expected durability. Hyundai replaced the catalytic converter under warranty. I requested diagnostic data, inspection findings, and documentation supporting the repair, but the dealership refused to provide anything beyond a basic repair invoice. Immediately following this Hyundai-authorized warranty repair, the vehicle developed a new drivability defect, specifically hesitation during acceleration, which was not present prior to the catalytic converter replacement. This indicates a post-repair nonconformity and raises concern that emissions-related components may not have been fully repaired or that additional systems were affected during the warranty repair process. When I returned the vehicle for evaluation, the dealership stated that it would not diagnose the vehicle unless an acti

NHTSA complaint #11711686 — an unverified report by a vehicle owner.

ENGINE

Vehicle: 2022 Hyundai N Line Mileage at Initial Incident: ~17,000 miles Components Involved: Engine and Engine Cooling; Exhaust System / Emissions; Air Bags (SRS) I am submitting this complaint to document unresolved emissions system and Supplemental Restraint System (SRS) safety concerns involving my 2022 Hyundai N Line, as well as the manufacturer’s refusal to ensure proper diagnosis and corrective action following a documented dealer service error and subsequent warranty repair. At approximately 17,000 miles, a Hyundai-authorized dealership failed to reinstall an engine oil seal during a routine oil change. This error caused rapid engine oil loss at highway speed, activation of the oil warning system, and oil discharge onto the roadway. The incident is documented in Hyundai service records and is not disputed. Sudden oil-loss events of this nature are known to cause latent or progressive damage to internal engine components and federally regulated emissions systems, even when immediate engine failure does not occur. Despite proper maintenance after this incident, the vehicle subsequently set DTC P0420 (Catalyst System Efficiency Below Threshold – Bank 1) at a mileage far below expected durability. Hyundai replaced the catalytic converter under warranty. I requested diagnostic data, inspection findings, and documentation supporting the repair, but the dealership refused to provide anything beyond a basic repair invoice. Immediately following this Hyundai-authorized warranty repair, the vehicle developed a new drivability defect, specifically hesitation during acceleration, which was not present prior to the catalytic converter replacement. This indicates a post-repair nonconformity and raises concern that emissions-related components may not have been fully repaired or that additional systems were affected during the warranty repair process. When I returned the vehicle for evaluation, the dealership stated that it would not diagnose the vehicle unless an acti

NHTSA complaint #11711686 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

Vehicle: 2022 Hyundai N Line Mileage at Initial Incident: ~17,000 miles Components Involved: Engine and Engine Cooling; Exhaust System / Emissions; Air Bags (SRS) I am submitting this complaint to document unresolved emissions system and Supplemental Restraint System (SRS) safety concerns involving my 2022 Hyundai N Line, as well as the manufacturer’s refusal to ensure proper diagnosis and corrective action following a documented dealer service error and subsequent warranty repair. At approximately 17,000 miles, a Hyundai-authorized dealership failed to reinstall an engine oil seal during a routine oil change. This error caused rapid engine oil loss at highway speed, activation of the oil warning system, and oil discharge onto the roadway. The incident is documented in Hyundai service records and is not disputed. Sudden oil-loss events of this nature are known to cause latent or progressive damage to internal engine components and federally regulated emissions systems, even when immediate engine failure does not occur. Despite proper maintenance after this incident, the vehicle subsequently set DTC P0420 (Catalyst System Efficiency Below Threshold – Bank 1) at a mileage far below expected durability. Hyundai replaced the catalytic converter under warranty. I requested diagnostic data, inspection findings, and documentation supporting the repair, but the dealership refused to provide anything beyond a basic repair invoice. Immediately following this Hyundai-authorized warranty repair, the vehicle developed a new drivability defect, specifically hesitation during acceleration, which was not present prior to the catalytic converter replacement. This indicates a post-repair nonconformity and raises concern that emissions-related components may not have been fully repaired or that additional systems were affected during the warranty repair process. When I returned the vehicle for evaluation, the dealership stated that it would not diagnose the vehicle unless an acti

NHTSA complaint #11711686 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

There is an issue with mice getting into the front of the car. It smells like urine and is unsafe to breathe. I have cleaned out air filters monthly and find nests every time and have even found a dead mice. My car has nothing that would attract the mice. I have tried everything and spent so much money to prevent this from happening. Apparently with this car it is a known issue, and has not been fixed.

NHTSA complaint #11709302 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: WARNINGS

I am reporting a safety-related defect involving the vehicle’s infotainment and forward safety systems. When this occurs, the vehicle also shows a “Check Forward Safety System” warning message. Diagnostic trouble code C162078 is triggered, indicating a front radar out of alignment. As a result, critical safety features such as Forward Collision-Avoidance Assist, Smart Cruise Control, and other radar-based driver assistance systems are disabled. This issue creates a significant safety risk because the driver is not alerted to potential forward collisions and cannot rely on active safety systems. The blank infotainment screen also prevents access to vehicle settings, warnings, and camera functions. In South Korea, this same defect has resulted in an official recall and free front radar replacement and calibration. However, in the United States, customers are not covered under a recall and are required to pay out of pocket for radar realignment or replacement, even though the issue is identical and a lot of time the issue came back 3 months later and customer have to pay out of pocket once again to fix the same issue. Many owners report receiving official recall notices in other markets, while U.S. owners must independently diagnose the issue. Dealers often state that the problem may be caused by radar misalignment after a software update or system fault. In some cases, cleaning or recalibration temporarily resolves the issue, but in other cases, full radar replacement is required. This inconsistent treatment places U.S. consumers at a financial disadvantage and allows a known safety defect to remain unresolved. I am requesting that NHTSA investigate this defect and require the manufacturer to issue a U.S. recall with free repair, calibration, or replacement, consistent with actions already taken in other countries.

NHTSA complaint #11705871 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

I am reporting a safety-related defect involving the vehicle’s infotainment and forward safety systems. When this occurs, the vehicle also shows a “Check Forward Safety System” warning message. Diagnostic trouble code C162078 is triggered, indicating a front radar out of alignment. As a result, critical safety features such as Forward Collision-Avoidance Assist, Smart Cruise Control, and other radar-based driver assistance systems are disabled. This issue creates a significant safety risk because the driver is not alerted to potential forward collisions and cannot rely on active safety systems. The blank infotainment screen also prevents access to vehicle settings, warnings, and camera functions. In South Korea, this same defect has resulted in an official recall and free front radar replacement and calibration. However, in the United States, customers are not covered under a recall and are required to pay out of pocket for radar realignment or replacement, even though the issue is identical and a lot of time the issue came back 3 months later and customer have to pay out of pocket once again to fix the same issue. Many owners report receiving official recall notices in other markets, while U.S. owners must independently diagnose the issue. Dealers often state that the problem may be caused by radar misalignment after a software update or system fault. In some cases, cleaning or recalibration temporarily resolves the issue, but in other cases, full radar replacement is required. This inconsistent treatment places U.S. consumers at a financial disadvantage and allows a known safety defect to remain unresolved. I am requesting that NHTSA investigate this defect and require the manufacturer to issue a U.S. recall with free repair, calibration, or replacement, consistent with actions already taken in other countries.

NHTSA complaint #11705871 — an unverified report by a vehicle owner.