Recall 23V768 affects 13 2021-2023 Lonestar Sv Electric S22 terminal tractors for VCU software that prevents high-voltage battery malfunction detection. Lonestar's OTA update is free.
Lonestar is recalling 13 2021-2023 Sv Electric S22 terminal tractors because the Vehicle Control Unit can disable battery isolation measurement, leaving operators without detection of a high voltage battery pack malfunction. That loss of detection raises fire risk, and Lonestar dealers will complete the recall repair free of charge.
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What's wrong?
The VCU software in the 2021-2023 Lonestar Sv Electric S22 controls how the Battery Management System checks the high voltage battery packs. The BMS isolation measurement is a safety check that looks for unsafe electrical leakage or loss of separation inside the battery system. When the check reads below a safe threshold, the BMS is supposed to shut down the vehicle.
On affected terminal tractors, a software bypass left the BMS parameter set to OFF, which is the testing and maintenance setting. That setting tells the BMS not to run the isolation measurement. The physical component did not change; the defect is the software configuration inside the control system.
There is no warning sign before failure. The truck can operate normally while the battery isolation check is disabled, which means an operator will not get a normal symptom telling them the safety measurement is missing.
Who's affected?
Covers the Sv Electric S22 across 3 model years, all tied to the same vehicle control unit software.
| 2023 Lonestar Sv Electric S22 | electrical system software |
|---|---|
| 2022 Lonestar Sv Electric S22 | electrical system software |
| 2021 Lonestar Sv Electric S22 | electrical system software |
| Units affected | 13 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
The operator can miss a high voltage battery pack malfunction, which increases the risk of a fire. Drive cautiously until the software update is complete, and schedule the free repair soon. Repair is free at any franchised Lonestar dealer.
What should I do?
- Check your VIN to confirm your 2021-2023 Lonestar Sv Electric S22 is included in this recall.
- Contact a franchised Lonestar dealer to schedule the free VCU software update.
- Install the over-the-air VCU software update that restores battery malfunction detection for the high voltage battery pack.
- Reference recall number 23V768 when you contact Lonestar or the dealer.
- Call Lonestar customer service at 1-903-306-0801 with questions about the software update or owner letter.
What happens at the repair
The remedy is an over-the-air Vehicle Control Unit software update from Lonestar. The update restores the VCU software logic tied to Battery Management System isolation measurement, so the system can detect a high voltage battery pack malfunction as intended. Lonestar released the update free of charge, and owner letters were mailed January 19, 2024. If you already paid for a related VCU software repair before the recall notice, Lonestar has a general reimbursement plan on file. Contact Lonestar customer service with your prior repair documentation and ask how to submit the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| November 14, 2023 | NHTSA published the recall |
|---|---|
| December 1, 2023 | Dealer notification began |
| December 1, 2023 | Interim owner notification (was planned for this date) |
| December 15, 2023 | Dealer notification ended |
| January 19, 2024 | Owner notification mailed |
Frequently asked questions
What is recall 23V768?
Recall 23V768 covers 13 2021-2023 Lonestar Sv Electric S22 terminal tractors with VCU software that can disable the BMS isolation measurement feature. That prevents detection of a high voltage battery pack malfunction and increases fire risk. Lonestar released a free OTA VCU software update.
What should I do if my 2021-2023 Lonestar Sv Electric S22 is on this recall?
Check your VIN to confirm your specific terminal tractor is included in recall 23V768. If it is, confirm that the OTA VCU software update has been installed. Contact Lonestar customer service at 1-903-306-0801 if the update has not been completed.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to correct the safety defect at no cost. For recall 23V768, Lonestar released the VCU software update free of charge, and the repair path is the OTA update for affected Sv Electric S22 terminal tractors.
What is the safety risk?
The safety risk is that the operator can miss a high voltage battery pack malfunction. When the VCU disables the BMS isolation measurement feature, the system does not detect that malfunction as intended, increasing fire risk. The free VCU software update corrects the defect.
When were owners notified about recall 23V768?
Lonestar mailed owner notification letters on January 19, 2024. If you operate or own a 2021-2023 Lonestar Sv Electric S22 and never received a letter, check your VIN and contact Lonestar customer service with recall number 23V768.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V768000 |
|---|---|
| Lonestar customer service | 1-903-306-0801 |
| NHTSA recall # | 23V768 |
| NHTSA recall # (full) | 23V768000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Report (PDF)
- Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →