Restore Flawless Shifting to Your Buick Rainier
Is your 2006-2007 Buick Rainier suffering from jarring shifts, delayed gear engagement, or a frustrating check engine light? These are classic signs of a failing Transmission Control Module (TCM). Don’t let a faulty computer sideline your vehicle or lead to more expensive repairs. This OEM-quality T42 TCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation that gets you back on the road with confidence.
Common Symptoms & Your Solution
A failing TCM can make your vehicle unpredictable and unsafe to drive. If you’re experiencing any of the following issues, this module is designed to be the direct-fit fix you need:
- Harsh, erratic, or delayed shifting
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Active Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel economy and potential transmission overheating
By replacing your old unit with this precisely programmed 2006 Buick Rainier transmission control module, you directly address the root cause of these electronic failures, restoring the smooth, reliable performance you expect.
Features & Benefits
- ✔ 100% Plug-and-Play Installation: This module is professionally programmed to your vehicle’s VIN number before shipping. This critical step eliminates the need for expensive dealership programming or special tools, saving you time and money.
- ✔ Restored Performance: Regain the smooth, crisp shifting your vehicle had from the factory. Our programming uses the latest GM software updates to ensure optimal shift points, torque converter lockup, and fuel efficiency.
- ✔ Built to Last: Engineered to meet or exceed original equipment standards, this module provides a dependable, long-term solution for your transmission problems, unlike questionable units from a salvage yard.
- ✔ Complete Compatibility: This T42 TCM is a direct replacement for a wide range of service numbers, including 24243921, 24252114, 24234503, and more, ensuring a perfect fit for your application.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected against defects.
Expert Insight: Why VIN Programming is Non-Negotiable
In modern vehicles like your Rainier, the TCM doesn’t just change gears—it’s in constant communication with the Engine Control Module (ECM), ABS, and other systems. A generic, non-programmed module can’t speak this unique language, leading to persistent codes, poor performance, or even complete non-operation. Our VIN-specific programming ensures your new TCM is a perfect digital match for your vehicle’s unique configuration, allowing all systems to integrate seamlessly from the moment you turn the key. This is the secret to a successful, lasting repair.
Whether you’re a seasoned DIY mechanic or simply looking for the most reliable fix, this programmed 2006 Buick Rainier transmission control module is the smartest choice. Installation is straightforward, often taking less than 30 minutes. Take control of your repair and avoid the high costs and scheduling hassles of a dealership visit. This is the most effective way to solve your transmission woes and restore your peace of mind.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This is the primary benefit of our service. We program the module to your vehicle’s VIN before it ships, so it’s ready for immediate installation right out of the box. It is a true plug-and-play solution.
Where is the TCM located on my 2006-2007 Buick Rainier?
On the Buick Rainier for these model years, the Transmission Control Module is typically located in the engine compartment. Always disconnect the vehicle’s battery before starting the replacement process.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the root cause that triggers a P0700, it’s essential to diagnose any other accompanying codes (like solenoid or sensor codes) to ensure a complete repair. In many cases, a faulty TCM is the culprit.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep or dispose of your old module without the hassle of returning it, making the process simpler and more convenient for you.
What is the warranty on this part?
This 2006 Buick Rainier transmission control module is backed by our one-year replacement warranty, giving you confidence and protection in your purchase.