Honda has issued a recall in the United States covering 635,808 vehicles across its Honda and Acura brands because a software fault can switch off electric power steering assistance. The campaign, filed with the National Highway Traffic Safety Administration under recall number 26V721000, covers certain 2021-2025 Acura TLX, 2022-2024 Acura MDX and 2023-2025 Honda Pilot vehicles.
Honda reported the problem to NHTSA on October 29 and has identified supplier-developed software as the source. The fix is a free reprogramming of the electric power steering control unit rather than a hardware replacement.
How the fault disables steering assistance
The recall report describes an error in the Driver Attention Monitor's road-condition compensation calculation within the EPS software. Under specific operating conditions, the software may attempt a floating-point division by zero, triggering an internal error, and the EPS software was incorrectly configured to respond by shutting down power steering assistance.
Drivers do not lose the ability to steer. The mechanical connection remains, but considerably more force is needed to turn the wheel without electric assistance, and the extra effort is most noticeable at low speed, such as parking or tight maneuvers. NHTSA warns the loss of assistance could reduce controllability and raise the risk of a crash or injury, and warning indicators illuminate in the instrument cluster when the system enters failsafe mode.
The spread of the fault across two brands and three model lines points to shared steering-system software rather than a single body style or segment, which is why one defect reaches hundreds of thousands of vehicles.
Pilot accounts for the largest share
The 2025 Pilot is the most affected model, with 240,830 vehicles potentially involved, close to 38 percent of the total recall population.
Dealer notifications were scheduled to begin around October 30, and Honda expects to start mailing letters to affected owners on December 14. Affected VINs became searchable through NHTSA's database on November 11.
No Do Not Drive warning
Honda is not telling owners to stop driving, and the recall carries no Do Not Drive warning. Even so, anyone who sees a steering warning or notices an unexpected loss of assistance should have the vehicle inspected rather than wait for the letter.
A software-only remedy keeps the cost and disruption low for owners, since no steering rack or other major component is replaced. The trade-off is that the repair depends on a dealer visit and a reflash, so the recall's benefit arrives only as quickly as owners book the work.

