4373666AA Driver’s Side Power Seat Switch: Compatibility, Installation & Troubleshooting

Introduction

A functional driver’s side power seat switch is crucial for comfort and safety. The 4373666AA switch ensures smooth seat adjustments in various Chrysler, Dodge, and Jeep models. If your power seat is unresponsive or malfunctioning, this guide will help you diagnose the issue, replace the switch, and maintain optimal performance.

What is the 4373666AA Power Seat Switch?

The 4373666AA is a factory-designed power seat switch that enables drivers to adjust their seats electronically. It plays a key role in ensuring comfort and ergonomics by controlling seat height, tilt, and recline functions.

Compatible Vehicles for 4373666AA

The 4373666AA power seat switch is compatible with several Chrysler, Dodge, and Jeep models, including:

  • Chrysler: 300 (certain model years), Pacifica, Town & Country
  • Dodge: Charger, Challenger, Durango, Grand Caravan
  • Jeep: Grand Cherokee, Wrangler

Always check your vehicle’s manual or consult a dealer to confirm compatibility.

Common Signs of a Faulty Power Seat Switch

If your power seat isn’t functioning correctly, the switch may be at fault. Look out for these signs:

  • Seat won’t move: No response when pressing the switch.
  • Partial movement: Seat moves in some directions but not others.
  • Delayed response: Lag between pressing the switch and seat movement.
  • Burnt smell or visible damage: Signs of electrical failure.

How to Replace the 4373666AA Power Seat Switch

Replacing the 4373666AA power seat switch is a straightforward process. Here’s how you can do it:

Tools Needed:

  • Screwdriver (Phillips and flathead)
  • Trim removal tool
  • Replacement switch (4373666AA)

Step-by-Step Replacement Guide:

  1. Turn off the ignition & disconnect the battery to prevent electrical hazards.
  2. Remove the seat trim panel by gently prying it off with a trim removal tool.
  3. Unscrew and disconnect the old switch from its wiring harness.
  4. Install the new 4373666AA switch, ensuring a secure connection.
  5. Reattach the trim panel and test the switch before fully securing it.

Troubleshooting Power Seat Issues

If replacing the switch doesn’t resolve the issue, consider these troubleshooting steps:

  • Check the fuse box: A blown fuse can prevent the power seat from functioning.
  • Inspect the wiring: Loose or damaged wires can disrupt power flow.
  • Test the motor: If the motor is unresponsive, it may need replacement.
  • Verify power supply: Use a multimeter to check for electrical continuity.

FAQs

What causes a power seat switch to fail?
Power seat switches can fail due to wear and tear, electrical short circuits, or water damage.

Can I manually adjust my power seat if the switch fails?
Most power seats do not have a manual override, so replacing the switch is necessary.

How much does a replacement 4373666AA switch cost?
Prices vary but typically range between $30 and $100, depending on the retailer.

Where can I buy the 4373666AA power seat switch?
You can purchase it from authorized dealers, online auto parts stores, and marketplaces like Amazon or eBay.

How long does it take to replace a power seat switch?
Replacing the 4373666AA switch usually takes 15 to 30 minutes with basic tools.

Can a faulty power seat switch drain the car battery?
Yes, if the switch is stuck in an active position, it can cause a continuous power draw, draining the battery.

Conclusion

The 4373666AA driver’s side power seat switch is a crucial component for maintaining comfort and adjustability in Chrysler, Dodge, and Jeep vehicles. Whether you’re experiencing a malfunction or planning a replacement, this guide provides the essential information needed for a smooth repair process. Regular maintenance and prompt replacement of faulty switches can prevent inconvenience and ensure your vehicle’s seat remains fully functional.

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