2021-2026 Hyundai Front View Camera Warning and Calibration

Hyundai has released Technical Service Bulletin (TSB) 26-AD-001H to address issues with the front view camera in certain 2021-2026 models. This TSB specifically covers instances where the front view camera may illuminate various warning lights and trigger diagnostic trouble code (DTC) C272246, indicating a system out of calibration. This issue can affect the proper functioning of advanced driver-assistance systems (ADAS) that rely on the front camera.

The TSB provides detailed instructions for diagnosing and resolving the Hyundai front view camera warning and related calibration problems.

Symptoms

Owners may notice several warning lights illuminated on their instrument cluster, indicating a problem with the front view camera system. These include:

• "Check Forward Safety system"
• "Check Lane Safety system"
• "Check High Beam Assist (HBA) system"

These warnings suggest that the vehicle's safety and assistance features, which depend on the front camera, may not be operating correctly.

Fault Codes / DTCs

This TSB specifically addresses the following diagnostic trouble codes related to the front view camera system:

Code	Description
C272246	System Out of Calibration
C2721	System Calibration Required LDWS
C272146	System Calibration Required
C2722	(Related to calibration attempt failure)

Diagnosis / Trigger Conditions

The front view camera's auto-calibration range can be exceeded while driving under specific conditions, leading to the Hyundai front view camera warning. These conditions include:

• Improper Camera Installation: If the front camera is not properly installed or is completely or partially detached from its mounting.
• Vehicle Balance Issues: Significant changes affecting the vehicle's balance, such as excessively heavy cargo loaded in a specific location or significantly under-inflated tires.
• Road Conditions: Driving on specific road conditions that affect the vehicle's balance, like an excessive road crown.

Important Warnings for Owners and Technicians

Hyundai has issued critical advisories regarding the diagnosis and repair of this front view camera issue:

• Do Not Perform Target Calibration for DTC C272246: If DTC C272246 is active, technicians do NOT perform the front camera calibration using a target. Attempting this will incorrectly trigger another fault, DTC C2721.
• EV Repair Restrictions: To prevent potential damage to Hyundai Electric Vehicles (EVs), all Hyundai EV repairs, including those related to the front view camera, must be performed exclusively by EV-certified Hyundai retailers.
• DTC C2722 and Calibration Failure: If an attempt is made to perform front camera calibration while DTC C2722 is active, it will cause DTC C272146 (System Calibration Required).

Repair Procedure Summary

Addressing the Hyundai front view camera warning involves a specific diagnostic and repair process:

1. Connect to GDS: A technician will connect the vehicle to the Global Diagnostic System (GDS) to check for DTC C272246.
2. DTC Status Check:
   • If DTC C272246 is ACTIVE, the front view camera needs to be replaced. The technician will follow the shop manual for the replacement procedure.
   • If DTC C272246 is in the history (not active), no action is required.
3. Driving Calibration for DTC C2721/C272146: If DTC C2721 or C272146 is triggered, the technician will turn the ignition OFF/ON, then perform a driving calibration using the GDS. This involves selecting "FR/CMR – Front View Camera" and then "Front Camera Driving Calibration (SPC)" in the GDS and following the on-screen instructions.
4. Pre-Calibration Checks: Before attempting calibration, the technician will confirm and address any underlying conditions that could affect calibration. This includes:
   • Removing and re-installing the front camera if it was improperly seated.
   • Checking all tire pressures to ensure they are set to specification.
   • Ensuring there is no excessive load on one side of the vehicle.
   • Confirming the vehicle is not leaning excessively in the front or rear due to excessive load.
5. Test Drive for Calibration: The vehicle must be test-driven for approximately 5 minutes at speeds over 18.6 MPH (30 KPH) on a straight road with minimal curves. Calibration may fail if conducted on roads with too much surface damage or excessive curves.
6. Verification: After the procedure, the technician will verify that the front camera operates normally.

Required Tools or Parts

For this repair, a Unit Front View Camera may be required. Technicians should refer to the applicable parts catalog for the correct part number. The Global Diagnostic System (GDS) is also essential for diagnosis and performing the necessary calibrations.

Owner Action

If you experience a Hyundai front view camera warning or any of the described warning lights, it is recommended to contact an authorized Hyundai service center. Describe the symptoms you are observing, and mention the possibility of TSB 26-AD-001H being applicable to your 2021-2026 Hyundai model. The diagnostic and repair work for this issue is typically covered under normal warranty conditions.

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Source: NHTSA ID: 11029906