2020-2025 Volvo Vhd/Vah/Vn/Vnre Recall 24V790: ECU Fault

Recall 24V790 affects 124,949 2020-2025 Volvo Vhd, Vah, Vn, and Vnre (Electric) trucks for ECU software errors. Repair is free at any franchised Volvo dealer.

What's wrong?

The Bendix EC80 Advanced Electronic Control Unit is the brake system computer on 2020-2025 Volvo Vhd, Vah, Vn, and Vnre (Electric) trucks equipped to tow a trailer. It reads brake and trailer communication signals, then helps manage antilock braking, traction control, stability control, and related driver-assist brake functions. The system depends on clean electrical signals and software that reads those signals correctly.

On affected trucks, electrical noise and a weak signal on the power line carrier interfere with the ECU's trailer communication. Because the system validation did not catch this operating condition, the control unit can process commands incorrectly or stop working. Volvo's remedy software removes the defective power line carrier function from the ABS control unit.

The warning sign is an illuminated ABS warning lamp. That light means the ABS has detected a fault or stopped operating, so the truck needs dealer attention before the problem affects braking support systems tied to the control unit.

Who's affected?

Spans Vah, Vhd, Vn, and Vnre (Electric) trucks across the 2020-2025 model years, all tied to the ABS-Advanced control unit software and hydraulic brake system.

A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific truck.

What's the safety risk?

If the ECU software fault affects your truck, traction control, ABS, stability control, active cruise control, and collision mitigation can lose normal function. That reduces the safety backup those systems provide and increases crash risk. An ABS warning lamp means the ABS has detected a fault or stopped operating, so schedule service promptly. Repair is free at any franchised Volvo dealer.

What should I do?

1. Check your VIN to confirm your 2020-2025 Volvo Vhd, Vah, Vn, or Vnre (Electric) truck is included in this recall.
2. Contact a franchised Volvo dealer to schedule the free ECU software reprogramming that fixes faulty command processing for the traction control, ABS, stability control, active cruise control, and collision mitigation systems.
3. Bring the owner letter if you have it, and reference recall number 24V790 when you call or arrive.
4. Drive cautiously until the repair is complete, and leave extra space because the affected safety systems are at risk of reduced or lost operation.
5. Call Volvo customer service at 1-800-528-6586 with questions about Volvo recall RVXX2409.

What happens at the repair

At the dealer, a Volvo technician reprograms the ECU software for the Bendix EC80 Advanced Electronic Control Unit. The recall repair is free, with the service covered by Volvo. This software update addresses the ECU command processing issue described in campaign 24V790. Volvo's standard reimbursement plan covers documented out-of-pocket repairs that qualify. Bring repair invoices or payment records to the service desk when you ask about reimbursement.

Timeline

Frequently asked questions

More information

Source documents

• Download Quarterly Report (PDF) · RCLQRT
• Download Recall Investigation Document (PDF) (PDF) · RCRIT
• Download Recall Report (PDF) · RCLRPT
• Download Owner Notice (PDF) · RCMN
• Download Misc. Document (PDF) · RMISC
• Download Owner Notification Letter (PDF) · RCONL
• Download Recall Acknowledgement (PDF) · RCAK

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 →