Peterbilt 589, 579 +1 more: Seats — seat heater/cooler

Affects Peterbilt 589, 579, 567 · 2027 — about 811 vehicles.

The hazard

A short circuit increases the risk of a fire.

What to do

Dealers will replace the harnesses, free of charge. Owner notification letters are expected to be mailed October 20, 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.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational