Western Star 47X, 49X: Electrical system — 12v/24v/48v battery

Affects Western Star 47X, 49X · 2020–2027 — about 27K vehicles.

The hazard

A short circuit increases the risk of a fire.

What to do

Dealers will repair the studs, free of charge. Owner notification letters were mailed May 22, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1029. This recall replaces and expands NHTSA recall number 25V326. Vehicles already repaired under the previous recall will need to have the new remedy completed.

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