Supreme Wabash Truck: Electrical system — 12v/24v/48v battery

Affects Supreme Wabash Truck · 2025 — about 137 vehicles.

The hazard

Misaligned bolts can allow the battery box to detach from the vehicle, becoming a road hazard and increasing the risk of a crash.

What to do

Dealers will permanently remove the battery box, free of charge. Owner notification letters were mailed February 9, 2026. Owners may contact Supreme customer service at 1-844-352-4921.

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