2026 Honda CR-V EDR/SRS Software Update TSB 25-085

Background: Event Data Recorder (EDR) Issue

Honda Service Bulletin 25-085 addresses a critical software issue affecting the 2026 Honda CR-V. An error in the Controller Area Network (CAN) settings can prevent the vehicle's Event Data Recorder (EDR) from properly recording brake switch function. This malfunction, in turn, stops the Supplemental Restraint System (SRS) unit from receiving and storing vital brake information.

This issue means that in the event of an incident, crucial data regarding brake application might not be available, potentially impacting accident reconstruction and analysis. The corrective action for this problem is a software update for the SRS unit to ensure proper data recording.

Important Warnings for Owners and Technicians

Honda has issued several important advisories regarding this product update:

• Owners of affected vehicles will receive a notification about this product update. However, some vehicles in new or used dealer inventory may also be affected. These vehicles must be repaired before they are sold.
• Control module failure resulting from improper software update completion—such as an early key cycle, low battery voltage, or a disconnected DLC cable—is explicitly NOT covered by warranty.
• If an error occurs during the update process or if the i-HDS diagnostic tool freezes, DO NOT disconnect the battery or turn the ignition to OFF. Technicians must reboot the i-HDS and restart the procedure.
• To prevent damage to other control units, do not operate anything electrical (like headlights, audio system, brakes, A/C, power windows, or door locks) during the software update.
• Unnecessary or incorrect repairs caused by a failure to update diagnostic and reprogramming software are NOT covered under warranty.
• Warranty reimbursement for technician labor is not allowed for routine checking or installation of any available software update.
• The bulletin specifies not to use the GR8-110P battery charger or a lithium-ion jump pack for this procedure, as they may not provide the steady electrical current required for successful reprogramming.
• If the SRS unit displays the error message: "Error Code: F906U2 The SRS unit has a crash history and therefore, cannot be updated. Replace the SRS unit and then start over.", then the SRS unit must be replaced.

Repair Procedure Summary

The repair process for the 2026 Honda CR-V SRS software update involves two potential procedures, depending on the outcome of the initial software update attempt.

Procedure A: SRS Software Update

This is the primary method to address the Honda CR-V SRS software update. The technician must first ensure the vehicle's 12-volt battery is fully charged and connected to a steady-voltage charger, such as the Midtronics DCA8-8000 or Associated Equipment Corporation ESS 6100 100A Smart Charger. The SRS software is then updated using the ECU Reprogramming Application with the DST-i, following guidelines in Service Bulletin 22-100. After the update, an all-DTC check is performed to clear any codes that may have set. Finally, the Yaw Rate Acceleration Neutral Position Memorization and Front Passenger's Weight Sensor Initialization procedures are completed.

Procedure B: SRS Unit Replacement

If the software update in Procedure A fails and the diagnostic tool displays the error message "Error Code: F906U2", indicating a crash history, the SRS unit assembly must be replaced. This procedure, identified by operation number 7511D3, involves removing the center console assembly and installing a new SRS unit. Technicians are required to provide a photo of the HDS screen showing the update failure when submitting a warranty claim for a new SRS unit. Before beginning, technicians must review SRS component locations, precautions, and procedures, and wait at least 3 minutes after disconnecting the 12-volt negative battery terminal.

Required Tools and Software

Technicians performing this Honda CR-V SRS software update must have specific tools and software versions:

• Battery Chargers: Midtronics DCA8-8000 Dynamic Diagnostic Charging System (in Reflash Mode) or Associated Equipment Corporation ESS 6100 100A Smart Charger (in Power Supply Mode | DIAG+).
• i-HDS Software Version: 1.010.011 or later.
• HDS Software Version: 3.105.036 or later.
• Honda ECU Reprogramming Application: 4.7.0.0 or later.
• Program ID: The SRS system requires Program ID 77959-3A2-A830 or later.
• Replacement Part (if needed): SRS Unit Assembly, part number 77960-3A2-A81.

Owner Action

Owners of affected 2026 Honda CR-V vehicles will be notified by Honda about this product update, Service Bulletin 25-085. If you receive a notification, it is important to contact an authorized Honda automobile dealer to schedule the necessary software update. The repair is expected to be covered under warranty. If you are purchasing a used 2026 CR-V, ensure that this update has been performed.

NHTSA ID: 11023863