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Service bulletin 26-AD-001H TSB

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11029906
Published by NHTSA2026-03-07
Manufacturer's number26-AD-001H TSB
Manufacturer's date2026-02-25
NHTSA componentFORWARD COLLISION AVOIDANCE: WARNINGS; LANE DEPARTURE: ASSIST; EXTERIOR LIGHTING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; LANE DEPARTURE: WARNING

NHTSA's summary

Some 2019MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration range may be exceeded while driving: • If the front camera is not properly installed and is completely or partially detached. • In case of excessive changes affecting the vehicle's balance (e.g., loading excessively heavy cargo in a specific location of the vehicle, or significant under-inflation of the tires). • Specific road conditions affecting the vehicle's balance (e.g., excessive road crown) This TSB provides instructions on how to service the vehicle when the front camera related warning light(s) are triggered due to system out of calibration (DTC_C272246).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Lighting, Adaptive cruise control, Lane departure and lane keeping

Trouble codes named

C2722

Vehicles listed
HYUNDAI ELANTRA2021, 2022, 2023, 2024, 2025
HYUNDAI ELANTRA HYBRID2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI ELANTRA N2022, 2023, 2024, 2025, 2026
HYUNDAI IONIQ 52022, 2023, 2024, 2025, 2026
HYUNDAI IONIQ 5 N2025, 2026
HYUNDAI IONIQ 62023, 2024, 2025, 2026
HYUNDAI IONIQ 6 N2026
HYUNDAI KONA2024, 2025, 2026
HYUNDAI KONA ELECTRIC2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SANTA CRUZ2022, 2023, 2024, 2025, 2026
HYUNDAI SONATA2020, 2021, 2022, 2023, 2024, 2025, 2026
HYUNDAI TUCSON2022, 2023, 2024, 2025, 2026
HYUNDAI TUCSON HYBRID2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
25-01-006H TSB2025-02-25. Service campaign. Certain Kona (SX2) vehicles may exhibit a warning light ON in the cluster related to the “Check Forward Safety system” due to software intended from an alternate region. A software update is available for the Front Camera system to update logic in the Forward Collision Avoidance (FCA) and Lane Keeping Assist (LKA) functions. Advanced Driver Assistance System (ADAS) functions are not affected due to this condition.
24-01-077H2024-09-25. Service campaign. Certain Kona (SX2) vehicles may exhibit a warning light ON in the cluster related to the “Check Forward Safety system” due to software intended from an alternate region. This bulletin provides a software update for the Front Camera system to update logic in the Forward Collision Avoidance (FCA) and Lane Keeping Assist (LKA) functions. Advanced Driver Assistance System (ADAS) functions are not affected due to this condition.