- Component
- ELECTRICAL SYSTEM:SOFTWARE
- Problem
- Lonestar Specialty Vehicles is recalling certain 2021-2023 SV Hybrid Electric S22 terminal tractors. The Vehicle Control Unit (VCU) may disable the Battery Management System (BMS) isolation measurement feature, preventing the detection of a high voltage battery pack malfunction.
- Risk
- An operator may be unaware of a high voltage battery pack malfunction, increasing the risk of a fire.
- Remedy
- Lonestar Specialty Vehicles has released an over-the-air (OTA) VCU software update, free of charge. Owner notification letters were mailed January 19, 2024. Owners may contact Lonestar customer service at 1-903-306-0801.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
What this recall means for you
The vehicle control unit software can disable the battery management system feature that checks the high voltage battery pack for faults. If that happens, the operator may not be warned of a battery malfunction.
Because the warning may not appear, a developing high voltage battery problem can go unnoticed, which increases the risk of a fire. Owners should take this recall seriously and act on it promptly.
Lonestar Specialty Vehicles has released an over-the-air software update for the vehicle control unit, and the remedy is free of charge. Owners who received the notification letter mailed January 19, 2024, can contact Lonestar customer service at 1-903-306-0801. You can also check your VIN for open recalls.
Official recall notice
Affected vehicles
| Lonestar SV Electric S22 | 202120222023 |
|---|