Campaign 23V-007

Incorrect software in the battery electric heavy duty electronic stability control program may underestimate the mass of the vehicle

Defect summary

PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Peterbilt 579 and 2023 Kenworth T680 vehicles. Incorrect software in the battery electric heavy duty electronic stability control program may underestimate the mass of the vehicle. As such, these vehicles may fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 136, "Electronic Stability Control Systems on Heavy Vehicles."

Consequence

An incorrect estimate of the vehicle mass can reduce the performance of the stability control system and increase the risk of a crash.

Remedy

Dealers will update the software, free of charge. Owner notification letters are expected to be mailed March 17, 2023. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) and 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 23PBA and 23KWA.

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.

Source: NHTSA ODI recalls file, campaign 23V007000. Text as published by NHTSA.

Vehicles covered

2 product lines are covered

Owner complaints filed with NHTSA about stability and traction control on these vehicles: 1, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 23V-007
Make	Model	Model years	Complaints on this component
Kenworth	T680	2023	1
Peterbilt	579	2022 to 2023	0

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

No service bulletins on this component preceded the recall

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

21V-719 Sep 16, 2021
Electronic Stability Control (ESC) malfunction indicator lamp may not illuminate
20V-739 Nov 25, 2020
Stability control brake relay may have the Spring Brake Modulating (SBM) Valve or the lift axle hose incorrectly connected
20V-199 Apr 6, 2020
In the event that the Anti-lock Brake System (ABS) loses battery and/or ignition power to the controller, the dash warning light for the ABS may…
18V-368 Jun 1, 2018
In the event that the Anti-lock Brake System (ABS) loses battery and/or ignition power to the controller, the dash warning light for the ABS may…
15V-036 Jan 27, 2015
Affected vehicles were manufactured with an incorrect horn contact plate that may damage the ESC steering angle sensor