The defect
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."
The 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.
The remedy
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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Hexagon Purus Tern RC8 | 2025, 2026 |
Components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Hexagon Purus Tern RC8 | 2025 | 0 | 1 |
| Hexagon Purus Tern RC8 | 2026 | 0 | 1 |
Other electrical system recalls in 2026
113 of the 666 recall campaigns reported to NHTSA in 2026 concerned the electrical system.
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NHTSA recalls (public domain) · all recalls of 2026