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2023 Peterbilt 579 problems

The most common problem on the 2023 Peterbilt 579 is transmission and drivetrain. Its complaint count is close to a typical 579 model year.

Typical yearClose to a typical year
Owner complaints
3
Recalls
11
Service bulletins
923 warranty
Worst area
Transmission

The worst 2023 Peterbilt 579 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Transmission
    2
  • Visibility
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Transmission
    2
  • Visibility
    1

Recalls 11

Electrical system: propulsion systemReported March 24, 2025 · 238 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2022-2025 Peterbilt 520, 579, and 2021-2025 Kenworth T680 trucks. The high voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive power.
Risk
A loss of drive power increases the risk of a crash.
Remedy
Dealers will update the software and replace the electrical harness, free of charge. Owner notification letters were mailed May 13, 2025. Owners may contact Peterbilt's customer service at 1‑940‑591‑4220 and Kenworth's customer service at 1‑425‑828‑5888. PACCAR's numbers for this recall are 25PBC and 25KWC.

Recall number 25V181000 · Recall details

Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/moduleReported December 9, 2024 · 220,764 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.
Risk
Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.
Remedy
Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1‑425‑828‑5888 and Peterbilt's customer service at 1‑940‑591‑4220. PACCAR's numbers for this recall are 24KWL and 24PBL.

Recall number 24V915000 · Recall details

Power train: automatic transmission: lever and linkage: column shiftReported March 20, 2024 · 70,509 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 365, 367, 389, 535, 536, 537, 548, 567, 579, and 2021-2025 Kenworth T180, T280, T380, T480, T680, T880 and W990 trucks. The right-hand gear shifter stalk connectors may have been improperly crimped, resulting in a loss of communication.
Risk
A loss of communication between the gear shifter and the transmission may result in the vehicle becoming disabled after coming to a stop, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the gear shifter assembly as necessary, free of charge. Owner letters were mailed December 15, 2025, then phased after that. Owners may contact Kenworth customer service at 1‑425‑828‑5888 or Peterbilt customer service at 1‑940‑591‑4220. PACCAR's numbers for this recall are 24PBE and 24KWE.

Recall number 24V190000 · Recall details

Fuel system, diesel: storage: tank assemblyReported September 27, 2023 · 1,315 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 579 and 567 trucks. The U-bolts that attach the air tank to the chassis may contact the fuel tank and over time, wear a hole in the tank.
Risk
A punctured fuel tank can leak fuel, increasing the risk of a fire.
Remedy
Dealers will inspect and trim the U-bolts, and replace the fuel tank as necessary, free of charge. Owner notification letters were mailed November 3, 2023. Owners may contact Peterbilt's customer service at 1‑940‑591‑4220. PACCAR's number for this recall is 23PBH.

Recall number 23V653000 · Recall details

Electrical systemReported June 13, 2023 · 4,967 vehicles affected
What is wrong
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.
Risk
A damaged alternator cable increases the risk of a fire.
Remedy
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.

Recall number 23V423000 · Recall details

Parking brakeReported March 20, 2023 · 25 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2023-2024 Peterbilt 579 trucks. The Intellipark Tractor Park Valve Module (PVM) may intermittently become stuck in the un-parked position and fail to move into the park position when the park switch is activated.
Risk
A PVM that fails to move into park can cause a vehicle rollaway, increasing the risk of a crash.
Remedy
Dealers will replace the PVM with a new corrected part, free of charge. Owner notification letters were mailed June 12, 2023. Owners may contact PACCAR's customer service at 1‑940‑591‑4220. PACCAR's number for this recall is 23PBC.

Recall number 23V185000 · Recall details

Electronic stability control (ESC)Reported January 16, 2023 · 46 vehicles affected
What is wrong
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."
Risk
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.

Recall number 23V007000 · Recall details

Visibility: rearview mirrors/devices: exteriorReported December 16, 2022 · 2,565 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Peterbilt 579 vehicles. The molded hood mirror assemblies may break at the pivot joint and, if unsecured by a harness or tether, can fall into the roadway.
Risk
A molded hood mirror that falls into the roadway can become a road hazard, increasing the risk of a crash.
Remedy
Dealers will inspect for a wire harness or tether and replace the hood mirror assembly as necessary, free of charge. Owner notification letters are expected to be mailed February 14, 2023. Owners may contact Peterbilt's customer service at 1‑940‑591‑4220. PACCAR's number for this recall is 22PBF.

Recall number 22V940000 · Recall details

Electrical system: instrument cluster/panelReported October 17, 2022 · 74,730 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T680, T880, W990, and Peterbilt 365, 367, 389, 567, and 579 vehicles. The digital display may freeze and not display critical safety information. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 101, "Control and Displays" and 102, "Trans Shift Lever Seq/Starter Interlock/Trans Braking Effect."
Risk
The loss of display information, such as vehicle speed and warning lights, can increase the risk of a crash.
Remedy
Dealers will update the software, free of charge. Owner notification letters are expected to be mailed December 16, 2022. Owners may contact Kenworth's customer service at 1‑425‑828‑5888 and Peterbilt's customer service at 1‑940‑591‑4220. PACCAR's numbers for this recall are 22KWK and 22PBK.

Recall number 22V779000 · Recall details

Engine and engine cooling: engine: engine control module (ecu/ECM)Reported August 17, 2022 · 1,601 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2023 Peterbilt 220, 389, 520, 536, 537, 348, 367, 567, 548, 579, and 2023 Kenworth T680, K270, T440, T880, W990, K370, T280, T380, T480, T800, and W900 vehicles. The engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall.
Risk
An unexpected engine stall can increase the risk of a crash.
Remedy
Dealers will replace the ECM, free of charge. Owner notification letters are expected to be mailed October 16, 2022. 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 22KWG and 22PBG.

Recall number 22V631000 · Recall details

SteeringReported July 28, 2022 · 47,500 vehicles affected
What is wrong
PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T170, T270, T280, T370, T380, T440, T470, T480, T680, T800, T880, W900, W990, C500, and 2022-2023 Peterbilt 325, 330, 337, 348, 365, 367, 389, 520, 536, 537, 548, 567, and 579 vehicles. The steering gears may have been assembled incorrectly, which can cause the gears to fracture.
Risk
A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Remedy
Dealers will inspect the steering gear serial numbers, and replace the steering gears as necessary, free of charge. Owner notification letters were mailed September 26, 2022. Owners may contact Kenworth's customer service at 1‑425‑828‑5888 and Peterbilt's customer service at 1‑940‑591‑4220. PACCAR's numbers for this recall are 22PBE and 22KWE.

Recall number 22V547000 · Recall details

See all 11 recalls for the 2023 Peterbilt 579

Technical service bulletins for the 2023 Peterbilt 579 92

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 92 bulletins for the 2023 Peterbilt 579

What 2023 Peterbilt 579 owners say

Most recent owner complaints, unedited.

Filed Jan 15, 2026 · Transmission · MI

Peterbilt has a recall 24V190 for the right hand shifter stalk. This VIN is not on the recall list however it does have the defective shift stalk and has been replaced 3 times prior to the recall. The most recent replacement was 8/20/24 replaced with the same defective part #. How do I get this truck on the recall list?

Filed Sep 17, 2024 · Visibility · GA

While driving in the rain, the wipers would not work. The driver tried and tried to work the switch but the wipers would not work. Later, the wipers would work. At times the wipers work, at times they don't. We took the truck to the Peterbilt dealer and the problem could not be duplicated, they offered no solutions, no direction other than to bring it back when it happens again.

Filed May 21, 2023 · Transmission · CA

1. The components that malfunctioned were the "engine/transmission match" and "transmission communications failure idle torque limit". Yes, my unit is available for inspection at any time. 2. When I had to stop on the freeway due to heavy traffic, the gearshift would not budge, causing an even bigger traffic delay. I had to turn off/on my unit multiple times to be able to pull over, safely. If I were not able to change gears while on the road, it could create a big accident due to faulty parts. 3. Yes, my local Peterbilt is aware of this issue and ordered a "right hand turn stalk shift" (part# Q21-6155-211X) to fix the issue. I was told that this replacement part was out of stock and may need to wait up to 3 months for it. I called other Peterbilt's in CA but everyone was out of stock, with 20 to 30 trucks also waiting for the same part. I even called Canada to see if they had parts, but they are also out of this particular part, with a long waitlist of trucks at their dealerships. Peterbilt had to recall the gearshifts on their units back in 2018: https://www.truckinginfo.com/278812/kenworth-peterbilt-trucks-recalled-for-transmission-gear-display 4. There were no prior indications that the gearshift needed inspection. The vehicle only indicated "Transmission fault" when the gearshift became stuck. When I put my unit in "Drive" the dashboard showed an "!" and when I put my unit in "R" the dashboard showed the unit was in "Drive". These incorrect messages/gear changes can be very dangerous. My unit is a 2023 Peterbilt 579 with only 90K miles, there is no reason it would have a faulty gearshift and no reason why each dealership has a waitlist of 20-30 trucks waiting for this exact part. Paccar clearly did not learn from the 2018 recall 118-A. I believe Peterbilt is knowingly manufacturing faulty parts in an effort to make as many sales as possible. These faulty parts need immediate attention but are completely out of stock nationally.

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Questions about the 2023 Peterbilt 579

Is the 2023 Peterbilt 579 reliable?

Owners have filed 3 complaints about the 2023 Peterbilt 579, close to a typical 579 model year.

What is the most common problem with the 2023 Peterbilt 579?

Transmission and drivetrain, with 2 complaints. Next is visibility (1).

How many recalls does the 2023 Peterbilt 579 have?

11 recalls, covering electrical system, service brakes, hydraulic and power train.

Was there a recall on the 2023 Peterbilt 579 transmission?

Yes, 1 recall: 24V190000. Check your VIN to see if your car still needs the free repair.

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