Cadillac CT4, CT6 +1 more: Power train — automatic transmission

Affects Cadillac CT4, CT6, CT5 · 2019–2022 — about 90K vehicles.

The hazard

Wheel lock-up while driving increases the risk of a crash.

What to do

Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.

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