Seats: Description and Operation

2012 Chevrolet Express 2500 V8-4.8LSECTION Description and Operation



Power Seats System Description and Operation

Power Seat System Components

The power seat system for the driver and passenger consists of the following components:

* Power Seat Switch

* Seat Horizontal Motor

* Seat Front Vertical Motor

* Seat Rear Vertical Motor

Power Seat System Operation

This seat contains three motors for positioning. They are the Horizontal motor, Rear Vertical motor, and a Front Vertical motor The Horizontal motor moves the seat forward and rearward. The Front Vertical motor raises and lowers the front of the seat and the Rear Vertical motor raises and lowers the rear of the seat. Power is supplied to the motors through a battery positive voltage supply circuit at the Power Seat Switch. A ground circuit is supplied to the motors through the Power Seat Switch also.

The direction the motor operates depends on the polarity applied to the motor control circuits. Each time direction is changed using the power seat switch, the power and ground paths are reversed at the control circuits causing the motor to position the seat in the desired direction.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.