The Recall Desk
Our severity:SevereNHTSA·21E014000·Announced 2021-02-17

Cummins Recalls B6.7N Natural Gas Engines Due to Software Calibration Error

Cummins is recalling certain Westport B6.7N natural gas engines because incorrect software calibration may prevent the engine from limiting speed or torque, potentially compromising safety functions like braking and stability control.

What this means for you

Our assessment, not the agency’s: severity 4/5 (Severe).

The hazard poses a serious risk of illness, injury, or structural failure. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect (engine control software) that directly impacts critical safety systems such as braking and stability control, increasing the risk of a crash, which aligns with the 'Severe' criteria for significant injury risk.

Plain-English summary

Cummins, Inc. is recalling certain Cummins Westport Inc. B6.7N natural gas engines (part number D1H3001BX03) equipped with specific engine control module (ECM) calibrations. The recall involves 267 affected units. The defect is caused by incorrect software calibration in the engine control module, which may cause the engine to fail to limit engine speed or torque as intended for safety-related functions. These functions include vehicle braking, traction and stability control, speed control, and collision avoidance.

If these safety-related functions do not operate properly, there is an increased risk of a crash. Cummins will notify manufacturers and owners, and dealers will recalibrate the engine control module free of charge. The recall began on April 9, 2021.

Owners may contact Cummins customer service at 1-800-286-6467 for more information. The Cummins recall number is C2409. Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or visit www.safercar.gov.

The recalled product

Product
ENGINE recall
Manufacturer
Cummins, Inc.
Category
Vehicle — Engine Component
Hazard
Affected units
267

Distribution

Distributed nationwide across the United States.

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