Is Your Buick Rendezvous Running Rough or Showing a Check Engine Light?
If your 2004-2006 Buick Rendezvous is experiencing frustrating issues like stalling, poor fuel economy, erratic shifting, or a persistent check engine light that won’t go away, a failing Engine Control Module (ECM) is often the culprit. The ECM is the brain of your vehicle’s engine, and when it starts to malfunction, it can create a cascade of problems that are difficult to diagnose. Don’t keep throwing money at new sensors and parts hoping for a fix. This fully programmed ECM is the reliable, cost-effective solution you need to get your vehicle running smoothly again.
The Right Part, Programmed and Ready to Install
This listing is for a genuine, used GM Engine Control Module, part number 12592124. We take the guesswork and hassle out of the replacement process. Before we ship your part, our technicians will flash it with the latest official GM software updates, specifically programmed to your vehicle’s unique Vehicle Identification Number (VIN). This critical step ensures seamless communication with your vehicle’s other modules and eliminates the need for an expensive trip to the dealership for programming.
“A customer’s 2005 Rendezvous 3.6L came into my shop last month with a no-start condition after stalling intermittently for weeks. They had already replaced the crankshaft position sensor based on a generic code, but the problem persisted. Our professional scan tool showed erratic data streams from multiple sensors simultaneously, which is a classic sign of an internal ECM failure, not faulty sensors. We installed one of our pre-programmed modules, performed the security relearn, and the vehicle fired right up and has been running perfectly ever since. This saved the customer hundreds over a new module from the dealer.”
Key Benefits of This Programmed ECM:
- โ VIN-Programmed for Your Vehicle: Arrives ready for installation with the latest GM software tailored to your Rendezvous. Just provide your VIN at checkout.
- โ Solves Common Engine Problems: Corrects issues like false sensor codes, rough idle, poor acceleration, and no-start conditions related to a faulty computer.
- โ Cost-Effective Repair: A high-quality, tested used part that provides a reliable fix without the high cost of a new dealership module.
- โ Direct-Fit Replacement: This module is a direct replacement for several part numbers, ensuring broad compatibility and a proper fit.
Simple Installation Guide
While professional installation is always recommended, here is a general guide for replacing your 2004-2006 Rendezvous ECM:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- Locate the ECM: On the Buick Rendezvous, the ECM is typically found in the engine compartment, on the driver’s side, often near the air cleaner housing.
- Disconnect Connectors: Carefully release the locking tabs and unplug the wiring harnesses from the old ECM. Inspect the connectors for any signs of corrosion or damage and clean them if necessary.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in place and securely tighten the bolts. Reconnect the wiring harnesses, ensuring they click firmly into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn (If Necessary): Many GM vehicles require a simple security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle 2-3 times until the security light goes out. Your vehicle should then start normally.
Guaranteed Compatibility
This ECM is a direct replacement for modules with the service numbers 12581144, 12588472, 12592124, and 19260507. It is confirmed to fit the following vehicles with the specified options:
- 2004-2006 Cadillac CTS (Base, ID 12592124 or 19260507)
- 2007 Cadillac CTS (Base)
- 2004-2006 Cadillac SRX (3.6L)
- 2005-2008 Buick Allure (3.6L)
- 2005-2008 Buick LaCrosse (3.6L)
- 2004-2005 Buick Rendezvous (ID 19260507)
- 2006 Buick Rendezvous (3.6L)
Please verify your part number or contact us with your VIN to confirm fitment before ordering. Restore your vehicle’s performance and reliability today!