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2026 Peterbilt 579Problems, recalls & complaints

NHTSA has logged 1 owner complaint about the 2026 Peterbilt 579, most often about the service brakes. It is covered by 2 safety recalls, and for recall 25V-436 the manufacturer reports only 71% of affected cars repaired.

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CarFlaw IndexToo new to rateHigher is better (0–100)
Safety recalls2Lowest repair rate 71%Owner complaints11 with a crash, fire or injuryTypical failure mileage0kService brakes, median miles

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through July 8, 2026. Updated daily.

Complaints by system

Where the 2026 Peterbilt 579 has problems

1 complaint grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Service brakes11

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

2 recalls

2026 Peterbilt 579 recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

–no report yet

Supply: quick release valve

New

Recall 26V-442 · Jul 8, 2026 · 8 vehicles

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

Problem, fix and repair progress →

71%repaired · 2026 Q3

Lighting control module: software

Recall 25V-436 · Jun 26, 2025 · 56,260 vehicles · 39,713 repaired

Risk. Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Peterbilt.

Best & worst years

2026 vs. every other 579 year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the 579 median. How we score

'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26'27
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
In owners' words

What 579 owners report

Recent service brakes complaints filed with NHTSA, shortened. Personal details are removed.

The contact was the operator of a 2026 Peterbilt 579 for an employer. The contact stated that whether driving 30 MPH or 65 MPH, after another vehicle entered the lane in front of the vehicle, the Forward Collision Avoidance: AEB and Lane Keep Assist systems erroneously activated and brought the…
Complaint 11682362 · Aug 22, 2025 · 200 miles

Own a 2026 579?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.