INFINITI Q50 brake system not recognizing brake pedal press, preventing vehicle start on INFINITI Q50

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

Problem overview

Some INFINITI Q50 owners report experiencing issues with the brake system not recognizing the brake pedal being pressed, which can prevent the vehicle from starting. This problem may stem from a faulty, damaged, or misaligned brake pedal switch, leading to the engine failing to start due to the vehicle not registering the brake pedal press. Owners are advised to inspect the brake pedal switch for visible damage, corrosion, or misalignment, and to test the switch by pressing the brake pedal to see if it activates the car's starting system. Additionally, if the brake pedal feels stiff and fully pumped, it may indicate a problem with the brake system's recognition of the pedal press, further affecting the vehicle's ability to start. Prompt resolution of this issue is crucial for ensuring the proper functioning of the brake system and the overall safety of the vehicle.

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