Mazda MX-5 Miata: Powertrain

Affects Mazda MX-5 Miata · 2016–2019 — about 1K vehicles.

The hazard

Issue: A problem with the automatic transmission could cause it to downshift suddenly. This may cause the rear wheels to slow abruptly and create a loss of vehicle stability. Safety Risk: A loss of vehicle stability could cause a loss of control and increase the risk of a crash. Corrective Actions: The company will notify owners by mail. Owners will be instructed to take their vehicle to a dealer for an update to the transmission control module (TCM).

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