2022 Hyundai Elantra: adaptive cruise control problems

Filed Sep 24, 2026 · Driver assistance · CA

Hyundai's forward collision warning light is on and won't allow me to use cruise control. I've tried cleaning the area, but still won't turn off. It did turn off for about an hour and while on the freeway using cruise control it came back on.

Filed Jun 23, 2026 · Driver assistance, Transmission · AZ

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 the federal safety agency investigation on both dealerships. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 18, 2025 · Driver assistance · WA

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 the federal safety agency 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.

Filed Aug 25, 2025 · Driver assistance, Electrical · GA

The car now shows a warning "Check Forward Safety System" and cruise control, understandably does not work. I have not had any collisions or accidents for this to occur. There seems to be no recall from Hyundai, however, this appears to be a safety issue that needs to be addressed by Hyundai.

Filed Dec 26, 2024 · Acceleration, Driver assistance · VA

On June 13 2023, I received an alert on my dashboard that my cruise control was unable to be used due to an issue with the front sensor. The alert went away soon after but then reappeared on August 27th, 2023 the error appeared again. Specifically error code C162078. I wasn't able to get the issue repaired until November 2023, which is also where they replaced my faulty backup camera.

Filed Oct 29, 2024 · Driver assistance · MI

While traveling on a bridge with a very steep incline, the forward safety system light came on, which disabled the cruise control. We could not resolve the warning light issue, despite taking it thru a car wash, hoping that the sensor was just dirty. The warning light remained on for several days, then went away. One month later, on a sunny, dry day, the light returned. I made an appt at the local dealership, where the car was purchased and they told me that the front sensor was out of alignment and I most likely hit something, which I did not. $370 for the alignment and since they assumed I hit something, it voided the warranty.

Filed Jul 13, 2024 · Driver assistance · MS

Check foward safety feature dashlight came on while driving, my blue link app told me the DTC c162078 chassis alignment failed front radar On Jun 4th 2024 while in park and idle my steering wheel kept going side to side, I recorded it not sure if that had something to do with this happening on July 2, 2024 and my safety is in jeopardy I feel due to the forward collision not working, smart cruise control not working, made appointment at hyundai dealership and I showed them the code bluelink told me to show them and they said they have to diagnose car themselves and the cost would be $169.99. I had to call hyundai customer care and get a claim number because dealership said they had to charge me. Two days i waited for dealership to call me the lady stated to let dealership know to waive diagnostic fee, I was told they would waive fee but I would need to pay $497 for part and $500 for labor which includes labor and recalibration, I told them I am financing a car I don't have safety features for, so I believe this should be listed as a recall or it should be fixed free of charge, being this is no fault of my own. No accident, didn't hit anything , I was driving at night and smooth roads. Dealership wanted me to lie to my insurance company and say I hit pothole. I told her no because that would be a lie.

Filed Jan 18, 2023 · Driver assistance · 5,500 miles · TX

The contact owns a 2022 Hyundai Elantra. The contact stated that on two separate occasions, while driving with cruise control activated, the vehicle came to an abrupt stop. There was no warning light illuminated. After each failure, the vehicle was taken to the dealer to be diagnosed; however, no fault was found with the vehicle. The manufacturer was notified of the failure and the contact was provided a case number. The vehicle was not repaired. The failure mileage was 5,500.