Atc RM550, PL500 +9 more: Equipment — tv/radio/speakers

Affects Atc RM550, PL500, ST450, RM450, RM500, PR300, PL750, RM900, PL550, RM800, PL700 · 2023–2025 — about 650 vehicles.

The hazard

Overheated radio and speakers increase the risk of a fire.

What to do

ATC will work with Maxxsonics to mail instructions and a USB with a software update. All speakers will be inspected and replaced as necessary. Repairs will be performed free of charge. Owner notification letters were mailed September 24, 2025. Owners may call ATC customer service at 1-877-441-2440 ext. 342.

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