2005-2007 Buick Rendezvous Seat Memory Module: Fixing Failed Memory & Power Functions
This guide covers the diagnosis, replacement, and critical compatibility details for the driver's seat memory control module in the 2005-2007 Buick Rendezvous.
- Compatibility is critical: Your Rendezvous MUST have the AR9 option code (power recliner with memory) for this module to work. Check the sticker in the glove box.
- This module is typically plug-and-play; no special dealer programming is required for a 2005-2007 Rendezvous.
- Failure symptoms range from non-working memory buttons to a completely inoperative power seat.
- Before replacing the module, always check the power seat fuse and inspect the wiring under the seat for damage or loose connections.
Key Compatibility Warning: RPO Code AR9 Required
Warning: This Seat Memory Control Module is only compatible with 2005-2007 Buick Rendezvous models equipped with the AR9 option package. The AR9 option includes a power seat recliner in addition to the other power seat adjustments. If your vehicle does not have the AR9 option, this module will not work.
To verify if your vehicle has this option, check the Service Parts Identification sticker, which is typically located in the glove box. Look for the code "AR9" in the list of three-digit Regular Production Option (RPO) codes. Ordering this part without confirming your vehicle has the AR9 option will result in an incompatible part.
Symptoms of a Failing Seat Memory Module
When the seat memory module begins to fail, you may notice one or more of the following issues:
- Memory Buttons Don't Work: The most common symptom is the inability to save or recall a seat position using the memory buttons on the driver's door.
- No Response from Seat Controls: In some cases, all power seat functions may stop working entirely.
- Intermittent Operation: The power seat or memory functions may work one day and not the next. This can sometimes be related to temperature changes.
- Erratic Seat Movement: The seat may move on its own, move to an incorrect position, or the control directions might become reversed (e.g., pressing forward moves the seat backward).
- Blown Fuses: A short circuit within the module can cause the fuse for the power seat circuit to blow repeatedly.
A diagnostic scan tool may reveal fault codes related to the module, such as U0562 (Invalid Data Received From Seat Control Switch Module B), indicating a communication problem.
Diagnosing the Problem
Before condemning the module, perform these simple checks:
- Check the Fuse: The first step is always to check the fuse for the power seats. A blown fuse is a simple fix, but if it blows again after replacement, it points to a deeper electrical problem, possibly the module itself.
- Test Manual Controls: Verify if the main power seat switches (not the memory buttons) can adjust the seat. If the seat moves correctly with the main switches, the problem is more likely isolated to the memory module or the memory switch panel.
- Inspect Wiring: Look under the driver's seat for any loose connectors or damaged wires. It's possible for items stored under the seat to snag and disconnect a wire. A technician can perform a voltage test at the module's connector to confirm it's receiving power.
Programming and Installation Requirements
Pro Tip: For the 2005-2007 Buick Rendezvous, the Seat Memory Control Module is generally considered a plug-and-play part. No special programming or dealer visit is typically required after installation. After replacing the module, you will simply need to re-learn your desired seat positions using the 'SET' and '1' or '2' buttons on the door.
While some newer or different GM vehicles require reprogramming with a Tech 2 or MDI scan tool when a module is replaced, this specific module for this generation of Rendezvous does not have an anti-theft link or require VIN matching.
Buying a Used Seat Memory Control Module
Since new OEM modules can be expensive or discontinued, a quality used OEM module is often the best value. Here’s what to look for:
- Match the Part Number: The most critical step is to match the part number on your original module. The known part numbers for this application are 10322547 and 15255538. While these may interchange, matching your exact number is the safest bet.
- Confirm the AR9 Option: Only purchase a module from a donor vehicle that had the AR9 memory seat option. A module from a standard power seat will not have the necessary software or connections.
- Inspect for Damage: Check the module and its connectors for any signs of corrosion, water damage, or physical cracks. The location under the seat makes it vulnerable to spills.
- Why Used OEM is a Good Choice: For an electronic part like this, there are few, if any, new aftermarket alternatives. A used OEM module that has been tested is a reliable and cost-effective solution compared to a potentially very expensive new old stock (NOS) part from a dealer.
Cost to Replace Seat Memory Control Module
| Part Type | Estimated Cost |
|---|---|
| New OEM | $500 - $650+ (if available) |
| New Aftermarket | Not Generally Available |
| Used OEM | $50 - $150 |
| Shop Labor | $75 - $150 |
Frequently Asked Questions (FAQ)
Does the 2005-2007 Buick Rendezvous seat memory module need to be programmed?
No, this module is typically a plug-and-play component for this specific vehicle range. You should be able to install a replacement module without needing special programming tools, then save your seat positions manually.
Where is the seat memory module located?
The module is located under the driver's seat, attached to the seat frame. To access it, you will likely need to unbolt the driver's seat and tilt it backward to reach the module and its electrical connectors.
What is the AR9 option code and how do I find it?
RPO code AR9 refers to the specific European-style bucket seat with a power recliner and memory functions. You can find this code on the silver Service Parts Identification sticker located inside your glove compartment. If AR9 is not on that list, this module is not correct for your vehicle.
Will a bad memory module stop my heated seats from working?
In many GM vehicles, the memory module and heated seat functions are linked. If your Rendezvous has heated seats, a faulty memory module could potentially cause them to stop working as well.
Technical Specifications
OEM Part Numbers: 10322547 15255538
For vehicles with Driver's Power Seat Recliner and Memory Function (RPO Code AR9).
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Buick Rendezvous:
- 🛍️ Shop This Part
- Key Compatibility Warning: RPO Code AR9 Required
- Symptoms of a Failing Seat Memory Module
- Diagnosing the Problem
- Programming and Installation Requirements
- Buying a Used Seat Memory Control Module
- Cost to Replace Seat Memory Control Module
- Frequently Asked Questions (FAQ)
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