- The problem
- PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 567, 579, 589, Kenworth T680, T880, W900, and W990 vehicles. The belt restraint webbing for the sleeper bunk was not secured properly during manufacturing.
- The risk
- A bunk restraint with improperly secured webbing may fail to adequately restrain vehicle occupants during a crash, increasing the risk of injury.
- The fix
- Dealers will inspect and replace the bunk restraints, as necessary, free of charge. Owner notification letters are expected to be mailed December 13, 2026. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 26PACH.
Vehicle safety record
2027 Peterbilt 579 Problems, complaints & recalls
No owner complaints about the 2027 Peterbilt 579 have been filed with NHTSA. It is covered by 4 recalls, the latest in October 2026 for the webbing.
NHTSA data checked
FFar more problems than a typical 579 year, for its age
- Complaints
- 0
- Recalls
- 4
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2027 Peterbilt 579 recalls 4
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- The problem
- PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 567, 579, 589 and 2027 Kenworth T680, T880, and W990 vehicles. The seat ventilation harness may be missing heat-shrink, resulting in a short circuit.
- The risk
- A short circuit increases the risk of a fire.
- The fix
- Dealers will replace the harnesses, free of charge. Owner notification letters were mailed October 16, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 or Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACE.
- The problem
- PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt and Kenworth vehicles. Please see the recall report for a complete list of models. The power distribution center (PDC) box may be contaminated with oil, which could result in a loss of drive power, Antilock Brake System (ABS) functionality, exterior lighting, windshield wipers, or the defogging system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 103, "Windshield Defrosting and Defogging Systems," 104, "Windshield Wiping and Washing Systems," and 108, "Lamps, Reflective Devices, and Associated Equipment."
- The risk
- A loss of lighting, windshield wipers, ABS function, or a loss of drive power can increase the risk of a crash.
- The fix
- Dealers will inspect the PDC serial numbers, and replace the PDC boxes as necessary, free of charge. Owner letters were mailed September 23, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACD.
- The problem
- PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
- The risk
- An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
- The fix
- Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore no owner notification letters are necessary. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACC.
What owners say
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No complaints about the 2027 Peterbilt 579 yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Peterbilt 579: every year compared
All 579 yearsQuestions about the 2027 Peterbilt 579
Does the 2027 Peterbilt 579 have any recalls?
Yes - NHTSA lists 4 recalls for the 2027 Peterbilt 579: webbing (October 2026); seat heater / cooler (August 2026); power distribution module / ipdm (July 2026); quick release valve (July 2026). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 2027 Peterbilt 579 had?
None have been filed with NHTSA so far.
Is the 2027 Peterbilt 579 a reliable vehicle?
Its Safety Index is 13 out of 100 (grade F: far more problems than a typical Peterbilt 579 year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
Which Peterbilt 579 years have the most complaints?
2022 (7), 2018 (6), 2023 (4). See every Peterbilt 579 year compared.
What should I do if my 2027 Peterbilt 579 has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data