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Recall 23V-423: 2021–2023 Peterbilt 579

PACCAR Incorporated recall for electrical system, reported to NHTSA on Jun 13, 2023, covering about 4,967 vehicles.

NHTSA number
23V-423
Report date
Jun 13, 2023
Vehicles affected
4,967
Owners notified
Jul 13, 2023

The problem

PACCAR, Incorporated (PACCAR) is recalling certain 2021-2023 Peterbilt 579 vehicles equipped with MX-13 engines and 160-amp alternators. A fastener on the front spring bracket may have been installed with the head on the outside of the frame rail, which can chafe and damage the alternator positive cable.

The risk

A damaged alternator cable increases the risk of a fire.

The fix

Dealers will replace the frame fastener and secure the alternator cable, free of charge. Owner notification letters are expected to be mailed August 11, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBD.

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.

Recall details

ManufacturerPACCAR Incorporated
ComponentElectrical System
Recall started bythe manufacturer
NHTSA campaign number23V423000

Vehicles in this recall

VehicleModel years
Peterbilt 5792021, 2022, 2023All years

Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.

Frequently asked questions

What is recall 23V-423?

PACCAR, Incorporated (PACCAR) is recalling certain 2021-2023 Peterbilt 579 vehicles equipped with MX-13 engines and 160-amp alternators. A fastener on the front spring bracket may have been installed with the head on the outside of the frame rail, which can chafe and damage the alternator positive cable.

How is recall 23V-423 fixed?

Dealers will replace the frame fastener and secure the alternator cable, free of charge. Owner notification letters are expected to be mailed August 11, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBD.

Is the recall repair free?

Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.