Ram Seat Memory Module (2013-2024): Why Programming is Required After Replacement

Is Programming Required for a Replacement Seat Memory Module?

Yes, absolutely. This is the single most important fact to understand before buying or replacing this part. A Seat Memory Control Module (MSM) is not a simple plug-and-play component. It is a networked computer that is tied to your truck’s specific Vehicle Identification Number (VIN).

Who Can Program the Module?

This depends heavily on your vehicle's year:

• 2018 and Newer Models: These trucks are equipped with a Secure Gateway Module (SGW). The SGW acts as a firewall, blocking most aftermarket diagnostic tools from performing programming functions. For these vehicles, a trip to a Ram dealership is almost always required for programming. An independent shop would need a specific, paid subscription to Chrysler's diagnostic system (AutoAuth) and compatible tools, which many do not have.
• Pre-2018 Models: On older trucks in this range, there is more flexibility. A well-equipped independent shop or a knowledgeable DIYer with advanced tools like AlfaOBD may be able to perform the necessary programming to get a new or used module to work. However, even with these tools, success is not guaranteed, and a dealer visit may still be necessary.

Symptoms of a Failing Seat Memory Module

A bad seat memory module can cause a range of frustrating issues. Look for these common signs:

• Memory Functions Don't Work: The most obvious symptom. Pressing the '1', '2', or 'Set' buttons does nothing. The system will not save new positions or recall existing ones.
• Erratic or Uncommanded Seat Movement: The seat may move on its own, go to the wrong position, or seem to have a mind of its own. This can happen when starting the truck or using the memory buttons.
• Easy Exit/Entry Feature Fails: If your truck is equipped with the feature that moves the seat back for easier entry and exit, a failing module can cause this to stop working or behave erratically.
• Complete Loss of Seat Adjustment: In severe cases, a short-circuited module can cause a total loss of power to all seat motors. 🎬 Watch this guide on diagnosing a dead driver's seat The seat will be stuck in its last position, and none of the adjustment switches will work.
• Uconnect Settings Grayed Out: You may find that options related to memory seats or Easy Exit in the Uconnect infotainment screen are disabled 🎬 See how to fix grayed-out Easy Exit settings in Uconnect or cannot be changed.

Before You Replace the Module: Simple Checks

Don't rush to replace the module. The issue could be something simpler. Always check these first:

1. Check Fuses: Verify that the fuses related to the driver's seat and memory functions are not blown.
2. Inspect Under-Seat Wiring: The wiring harness under the driver's seat is vulnerable to damage from items stored under the seat or from repeated seat movement. Look for pinched wires, loose connectors, or signs of corrosion. A loose pin in a connector is a common cause of failure.
3. Try a Recalibration: Sometimes, the module can lose track of the seat's position. Forum users have reported success by performing a simple recalibration: manually run the seat all the way forward, then all the way back. This can sometimes force the module to re-learn the track limits and restore normal function.
🎬 Watch how to perform a memory seat reset and recalibration

Buying a Used Seat Memory Module

Buying a used OEM module can be a cost-effective option, but you must be aware of the risks and requirements.

• Verify Part Numbers: The most important step. The module is located under the driver's seat. You may need to unbolt the seat and tilt it back to access it. Match the part number on your original module to the one you plan to buy. While part numbers like 5026618AF supersede older versions (like AB, AC, AD, AE), matching exactly is the safest bet.
• Factor in Programming Costs: A used module is 100% guaranteed to be locked to the donor vehicle's VIN. It WILL require programming. Call your local dealer or a trusted independent shop beforehand to get a quote for programming a customer-supplied used module. Some dealers may refuse to do this.
• Physical Inspection: When the part arrives, inspect the case for cracks or signs of water damage. Check the connector pins to ensure they are straight and free of corrosion.
• Why Used OEM is Often Better: For complex electronics like this, a used OEM part that has been tested is often more reliable than a cheap, new aftermarket clone which may have software or compatibility issues from day one.

Associated OBD-II Trouble Codes

You are unlikely to find a specific trouble code that says "Bad Seat Memory Module." Instead, failure of this part often results in communication or data errors. A professional scan tool that can read body and network codes is required.

• U0562: Invalid Data Received From Seat Control Switch Module B.
• U-Series Codes (Network): General communication failure codes (like U0211 or U0512) may be present, indicating the module is not communicating correctly with the rest of the vehicle's network.
• B-Series Codes (Body): Codes related to seat position sensors or switches may also be stored.

Cost of Replacement

Prices can vary based on your location and choice of repair shop. Always call for a quote, especially regarding the cost of programming.

Frequently Asked Questions (FAQ)