Mazda CX-5 engine starts randomly, check engine light on, and shifter stuck in park on Mazda CX-5

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mazda CX-5 owners report experiencing issues such as the engine starting randomly, the check engine light illuminating, and the shifter being stuck in park. These problems can indicate underlying issues, including sensor malfunctions or emissions problems that trigger the check engine light, necessitating a thorough diagnosis to identify the specific cause. Additionally, random engine starts may be linked to a malfunctioning mass airflow sensor, which affects the air-fuel mixture and overall engine performance. Furthermore, when the shifter is stuck in park, it could stem from a faulty stop light switch, keyless system malfunction, or issues with the shift lock mechanism. Owners are advised to seek professional diagnosis and repair estimates to efficiently resolve these issues and ensure the vehicle operates safely.

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