Western Star 4700, 5700: Electrical

Affects Western Star 4700, 5700 · 2019–2022 — about 2K vehicles.

The hazard

Issue: On certain trucks, an undersized wire in the ground circuit harness could overheat and melt a connector. If this happens, the engine may stall and you may not be able to restart it. Safety Risk: A loss of engine power could increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to an authorized DTNA Service Facility to replace the ground wire harness.

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