Peterbilt 548, 537 +5 more: Engine

Affects Peterbilt 548, 537, 579, 520, 367, 389, 567 · 2023 — about 186 vehicles.

The hazard

Issue: On certain trucks, a problem in the engine control module (ECM) could cause a short circuit. If this happens, the engine could stall and you may not be able to restart it. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the engine control module.

What to do

Contact your dealer; the remedy details were not included in the filing.

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