2023 Hyundai Kona N

The knock sensor on the engine fails when exposed to any amount of water. The car is designed in a way that lets on too much. It’s something that is VERY common amongst owners of these vehicles. It’s a safety flaw that needs to be fixed because it puts the car in “limp” mode. That makes the car instantly halt acceleration. Please hold Hyundai accountable

NHTSA ID

11576498

Incident

Feb 21, 2024

After washing my '23 Kona N in a hand car wash, I experienced a sudden, complete loss of power as I was pulling into traffic immediately afterwards, nearly resulting in a rear-end collision. There was a flashing check engine light (CEL or MIL) on the dash, and I had to have the vehicle towed to a dealership. The stored OBD-II code is P132600 (knock sensor). The car has only 16k miles on it. This is a KNOWN ISSUE, and there are complaints about it all over Reddit, Facebook, and other Internet sites, and it also affects the same generation Elantra N. This issue can occur ANY TIME THE VEHICLE GETS WET. It is unacceptable that simply washing my car or driving my vehicle in the rain can cause me to lose all power and create an unsafe driving condition. PLEASE compel Hyundai to address this safety issue with a recall.

NHTSA ID

11576357

Incident

Mar 7, 2024

Car tends to jerk and almost jump when first pulling out of almost anywhere. Seems to have happened with other people with the same car. When you turn after pulling out sometimes, the car will jump and the suspension sounds like it’s jumping. The particular issue makes it hard to steer and can easily make the car lose control for anyone not experienced.

NHTSA ID

11557297

Incident

Nov 28, 2023

I took my vehicle through a touch free car wash. After the wash the vehicle sat for about 10 to 20 minutes while I dried off the exterior and cleaned out my interior. After leaving the car wash the car made it less than a mile down the road and illuminated a flashing check engine light with a P132600 code implying a connection rod failure detected by the knock sensor. As of time of reporting the vehicle is still waiting to be serviced by the dealership as it is still under warranty. Safety can be impacted as the vehicle will immediately go into limp mode, throttling performance.

NHTSA ID

11544297

Incident

Sep 9, 2023

This bulletin provides information related to a Transmission Control Unit (TCU) software update for some vehicles equipped with an 8-speed wet dual clutch transmission (8WDCT). The software update revises the touch point learning variation, improving drivability and judder symptoms. Certain 8WDCTs (indicated by a new part number) received an updated clutch spring. The correct TCU software update must be matched with the correct corresponding 8WDCT hardware, otherwise, drivability concerns may occur. This service procedure should be performed prior to any 8WDCT replacements done for drivability/judder concerns.

This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB.

Certain 2021-2023 model year Kona, 2021-2023 model year Kona Electric, and 2022-2023 model year Kona N vehicles may experience an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the horn assembly replacement has been extended to 10 years / 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.

Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this TSB to install the latest design. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years/60,000 miles.

Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this TSB to install the latest design. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years/60,000 miles.

The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.