Vehicle recall record

2026 Peterbilt 579

2 recall campaigns · 2025–2026 · 0 with a do-not-park-indoors warning

Campaigns
2
First notice
2025-06-26
Latest notice
2026-07-09
Same-make model-year average
2.0

Risk markers carried in the record

No park-it or park-outside warning is flagged in this vehicle's collected record. This does not establish that the vehicle is defect-free or that every notice is included.

The markers above summarize fields available in this dataset. A missing marker is not a safety finding. Recall status and remedy eligibility can depend on vehicle identification number, equipment, production date, and whether a repair has already been completed.

Recall distribution by component

2 component categories

Counts and shares use the vehicle-level recall records shown below. The horizontal bar is scaled to the largest category on this page.
ComponentCampaignsShareRelative volume
EXTERIOR LIGHTING150.0%
SERVICE BRAKES, AIR150.0%

Component labels follow the source record's component field. Where the source includes a more detailed subcomponent after a colon, this distribution groups the record under the first component segment. Shares are calculated against 2 campaigns and rounded to one decimal place, so displayed percentages may not sum to exactly 100 percent.

Recall dates by calendar year

2 calendar years

These are recall notice dates, not vehicle model years.
Calendar yearCampaignsRelative volume
20251
20261

The timeline groups campaign records by their reported recall date. This explains why the date range (2025–2026) can begin before or end after model year 2026. The underlying vehicle may be covered by notices issued in several different calendar years.

Recall campaign details

2 vehicle-level records

Campaign summaries, consequences, and remedies are preserved from the collected NHTSA source text.
CampaignDateComponentSummary and source detailsFlags
26V4420002026-07-09SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE

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 i…

Read the complete source text

Summary
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."

Consequence
An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.

Remedy
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.

No listed flag
25V4360002025-06-26EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L77…

Read the complete source text

Summary
PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."

Consequence
Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.

Remedy
Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 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 number for this recall is 25PACF.

No listed flag

Each row represents a campaign listed for this make, model, and model year. A campaign can also cover other vehicles. The excerpt above is a direct beginning of the source summary; expand a row to read the complete summary and any consequence or remedy text included in the local record.

How 2026 Peterbilt 579 compares within Peterbilt

1 listed 2026 model-year records

Other collected Peterbilt records for model year 2026.
VehicleCampaignsDate range
No other Peterbilt model-year record is present in this dataset.

This comparison is calculated from vehicle records for the same make and model year in this snapshot. It is a simple arithmetic average, not an industry benchmark. A model may appear under more than one configuration in the source data, and campaign counts do not indicate the probability that a specific vehicle has an unresolved defect.

Data source and interpretation

NHTSA Office of Defects Investigation, retrieved 2026-11-01. Recall records reflect manufacturer reports submitted to NHTSA. Absence of a recall here does not mean a vehicle is defect-free.

This page reports 2 campaign records, groups them into 2 component categories, and places the notice dates into these calendar years: 2025: 1; 2026: 1. These are derived views of the supplied records, not additional findings from NHTSA.

The collection includes model-year records with one or more recalls. It is not a complete vehicle history, VIN eligibility result, repair-status check, safety rating, or guarantee that the source has no later updates. Confirm current campaign details and vehicle applicability with official NHTSA information and the manufacturer.