Mazda · Canada · Crit
Mazda MAZDA6, CX-5 +1 more: Engine
Affects Mazda MAZDA6, CX-5, MAZDA3 · 2018–2019 — about 43K vehicles.
The hazard
Issue: On certain vehicles, a software error in the Powertrain Control Module (PCM) could cause the valve clearance adjuster not to work properly. This could result in internal engine damage. If this happens, the engine may misfire and lose power. In the worst case, the engine may stall while driving without the ability to restart it. The malfunction indicator light (MIL) may also turn on in the instrument cluster. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Mazda will notify owners by mail and instruct them to take their vehicle to a dealer to update the PCM software.
What to do
Contact your dealer; the remedy details were not included in the filing.