GM Genuine Parts Automatic Transmission Control Switch 84955379 Replacement Sensor for Chevy Buick GMC Cadillac Cars Easy Drop In OE Ready Upgrade Durable Automotive Electrical Part

GM Genuine Parts Transmission Shift Micro Switch 84955379
✔️ OE replacement sensor for GM vehicles, drop-in fit, durable

GM Genuine Parts Automatic Transmission Shift Micro Switch is an OE-replacement sensor used in GM automatic transmissions. It’s designed, engineered, and tested to rigorous GM standards and is the true OE part installed during production or validated by General Motors for Chevrolet, Buick, GMC, and Cadillac vehicles.

✅ GM Genuine Parts Automatic Transmission Shift Micro Switch (84955379)
✅ OE replacement sensor, designed and tested to GM standards
✅ Drop-in fit for Chevrolet, Buick, GMC, Cadillac vehicles
✅ Black housing; reliability backed by GM engineers

💡 What is a GM Genuine Parts transmission shift micro switch used for in automatic transmissions?

It acts as a sensor input to the transmission control module to indicate gear position and assist shift timing. - transmission control input signal - gear position sensing for proper shift timing - OEM replacement compatibility for GM vehicles
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