PACCAR recalls 2022-2023 Peterbilt 579 trucks with faulty electronic stability control software that may underestimate vehicle mass, increasing crash risk. Owners must contact dealers for free software update by March 17, 2023.
PACCAR is recalling certain 2022-2023 Peterbilt 579 trucks due to a software error in the electronic stability control system that may underestimate vehicle mass. This could cause the truck to fail safety standards and increase crash risk. Affected owners should contact dealers for a free software update. Read more at govinfonow.com/recall/81064-peterbilt-579-2022-recall-esc-software-error-may-increase-crash.
“Peterbilt 579 (2022) Recall: ESC Software Error May Increase Crash Risk.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/81064-peterbilt-579-2022-recall-esc-software-error-may-increase-crash. Based on NHTSA recall #23V007000 (https://www.nhtsa.gov/recalls?nhtsaId=23V007000).
NHTSA announced on Jan. 16, 2023, that PACCAR Incorporated is recalling certain 2022-2023 Peterbilt 579 and 2023 Kenworth T680 vehicles due to an incorrect vehicle mass estimate that reduces stability control performance and increases crash risk. Dealers will update the software free of charge.
How to tell if you have it
Peterbilt 579, 2022-2023
Kenworth T680, 2023
What to do
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).
The hazard
An incorrect estimate of the vehicle mass can reduce the performance of the stability control system and increase the risk of a crash. These vehicles may fail to comply with Federal Motor Vehicle Safety Standard number 136.
Context
GovInfoNow's records show PACCAR Incorporated has 147 other recalls on record since March 9, 2009. Other recent recalls of similar products include Peterbilt 548 (2027) Trucks: Delayed Brakes Risk Crash (Sept. 1, 2026), Kenworth T680 (2027) Seats: Fire Risk from Short Circuit (Aug. 21, 2026), and Kenworth T680 (2027) Recall: Electrical System Risk of Crash (July 27, 2026).
How to tell if you have this one
Check if your truck has a 2022-2023 model year and is a Peterbilt 579 or Kenworth T680. The recall covers vehicles with the PACCAR recall numbers 23PBA and 23KWA.
Brand
Peterbilt
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact Dealer for Software Update
Dealers will provide a free software update to fix the stability control system error.
March 17, 2023
Official remedy
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
1NHTSA received the defect report
2Owner letters expected (expected, per the notice)
Dates from the agency record only; steps without a date are left out.
Take action
Contact Peterbilt
We’ve drafted a message you can send Peterbilt to request your refund or repair — edit it as you like.
Subject: Recall 23V007000 — Peterbilt 579 (2022) Recall: ESC Software Error May Increase Crash Risk
Hello,
I own a Peterbilt 579 (2022) Recall: ESC Software Error May Increase Crash Risk that is covered by recall 23V007000 from Peterbilt.
The official recall notice states: 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.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.