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United States 26V253000

Hexagon Purus Systems USA LLC

ELECTRICAL SYSTEM — Digital Display May Show Incorrect Air Brake Pressure/FMVSS 121 · April 21, 2026

The problem

Hexagon Purus Systems USA LLC (Hexagon Purus) is recalling certain 2025-2026 Tern RC8 vehicles. A software error may occur between the digital display cluster and the pressure sensors, causing the system to show the incorrect air brake pressure and falsely indicate a brake system failure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."

Risk

A display that does not show accurate information may fail to alert the driver to an actual brake issue, increasing the risk of a crash.

What owners should do

Hexagon Purus will update the software, free of charge. Owner notification letters were mailed June 19, 2026. Owners may contact Hexagon Purus' customer service at 1-949-359-8168.

Units 17

Official record All recalls