Bendix Commercial Vehicle Systems has expanded its October 2024 recall of EC80 Electronic Control Units, identifying an additional 2,345 units with software defects that could compromise critical safety systems on commercial vehicles. The expansion, designated NHTSA recall 25E073, addresses units inadvertently sold as aftermarket equipment that contain the same defective Power Line Carrier functionality identified in the original 24E086 recall.
Highlights
- 2,345 additional EC80 ECU units affected across 17 part numbers spanning production dates from October 2022 to October 2025
- Software defect may disable ABS, traction control, and stability systems when electrical interference combines with weak trailer communication signals
- Multi-trailer configurations at higher risk due to increased likelihood of signal degradation and electrical noise
- Free software reprogramming remedy coordinated through vehicle manufacturer dealer networks beginning December 2025
Affected Equipment Specifications
The recall encompasses Bendix EC80 ECUs serving both Electronic Stability Program (ESP) and Automatic Traction Control (ATC) functions. The affected units represent a mix of original equipment and replacement components:
Primary affected part numbers:
- K209617SC000 (594 units)
- K168128R000 (540 units)
- K212563SC000 (337 units)
- K168419SC000 (223 units)
- K209615SC000 (174 units)
Production dates range from October 22, 2024, to October 27, 2025, for the majority of units. However, certain ATC-equipped replacement units (K168419SC000, K168421SC000, K168422SC000) were manufactured as early as October 2022.
Technical Defect Analysis
The EC80 ECU integrates with commercial vehicle antilock braking systems and utilizes Power Line Carrier technology for tractor-trailer communication. PLC transmits signals over the electrical connection between towing vehicles and trailers to control the cab-mounted trailer ABS indicator lamp.
Under specific conditions combining high electrical interference on the vehicle power line with diminished PLC signal strength, the ECU’s communication processing algorithm may malfunction. This fault condition can trigger three distinct failure modes: setting an ABS fault code, complete system shutdown, or operational malfunction.
Signal degradation intensifies in multi-trailer configurations where electrical path resistance increases substantially. Optional trailer-mounted equipment, particularly GPS tracking systems connected to the power line, further attenuates PLC signal strength.
Safety System Impact
When the defect manifests, multiple safety systems dependent on the EC80 ECU may experience degraded performance or complete failure:
- Antilock Braking System (ABS)
- Automatic Traction Control (ATC)
- Electronic Stability Control (ESC)
- Active Cruise Control (ACC)
- Collision Mitigation System (CMS)
The ABS warning lamp illuminates when faults are detected or systems cease operation. In extremely rare circumstances preceding system shutdown, stability events or automated braking requests may receive incorrect system responses, materially increasing crash probability.
Discovery Timeline and Scope Expansion
Bendix’s internal systems review in late October 2025 identified approximately 2,300 ECU part numbers with software substantially similar to units in recall 24E086. These components were initially classified as obsolete but remained active in inventory management systems, resulting in inadvertent aftermarket sales.
The manufacturer conducted comprehensive database queries to verify affected units and formally decided to expand the recall on October 31, 2025. All identified units contain software versions predating the corrective measures implemented in the original October 2024 recall action.
Remedy Implementation Protocol
Bendix will provide no-cost ECU software reprogramming through vehicle manufacturer dealer networks. The corrective software eliminates the defective PLC functionality and carries unique version identification numbers for verification purposes.
Production controls implemented at assembly stations on October 27, 2025, prevent programming with pre-remedy software versions. Customer orders for EC80 units transitioned to corrected software variants on the same date.
Notification Schedule and Owner Response
Vehicle manufacturer notifications commenced December 5, 2025, via email and postal delivery. Owner notification letters follow a phased approach with mailings scheduled between December 8 and December 12, 2025.
Affected commercial vehicle operators should contact Bendix Customer Service at 440-329-9000 for remedy coordination. PACCAR and International Motors represent the primary original equipment purchasers identified in the recall documentation.
The expansion underscores the complexity of managing obsolete component inventories in commercial vehicle supply chains and the potential safety implications when deprecated software versions remain accessible through aftermarket channels.
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