Restore Your Buick’s Smooth, Reliable Performance
Is your 2006-2007 Buick Rainier suffering from harsh shifting, getting stuck in gear, or showing a persistent check engine light? These are classic signs of a failing Transmission Control Module (TCM). Don’t let a faulty computer ruin the comfortable ride you expect from your Buick. This genuine GM T42 TCM, service number 24240449, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a hassle-free, plug-and-play installation. Restore your transmission’s logic and get back on the road with confidence.
Common Symptoms & Your Solution
A failing TCM can cause a cascade of frustrating and potentially damaging issues. If you’re experiencing any of the following, this module is designed to be the fix:
- Harsh, erratic, or delayed gear shifts
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Illuminated Check Engine or Transmission Warning Lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift correctly
- Noticeably poor fuel economy
By replacing your old unit with this professionally programmed 2006-2007 Buick Rainier transmission control module, you are directly addressing the electronic brain of your transmission, correcting these problems at their source.
Features & Benefits
- ✔ Plug-and-Play Installation: This module is expertly programmed to your vehicle’s VIN before shipping. This eliminates the need for expensive dealership programming or special tools, saving you time and money.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM restores the smooth, predictable performance your Buick Rainier was built for.
- ✔ OEM-Grade Quality: Built to strict General Motors standards, this T42 module ensures reliable operation and long-term durability, giving you peace of mind for the miles ahead.
- ✔ Comprehensive Compatibility: This unit directly interchanges with a wide range of part numbers, including 24252114, 24234503, 24240400, and 24256960, ensuring a perfect fit for your application.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench: Why VIN Programming Matters
In modern vehicles like your Rainier, the TCM is more than just a simple controller; it’s a networked computer that communicates constantly with the Engine Control Module (ECM) and other vehicle systems. Generic, non-programmed modules often cause more problems than they solve because they lack the specific software and calibration tables for your vehicle’s unique configuration (engine, axle ratio, tire size). Our VIN-specific programming ensures this 2006-2007 Buick Rainier transmission control module has the latest GM software and is perfectly matched to your SUV, just like a new part from the factory. This is the secret to a successful, lasting repair.
Installation is straightforward for a DIY mechanic or any professional technician. The module is typically located in the engine compartment. Simply disconnect the battery, swap the module, reconnect, and clear any remaining codes with a standard scan tool. With this pre-programmed 2006-2007 Buick Rainier transmission control module, you can solve your transmission woes and get your vehicle driving like new again.
Frequently Asked Questions
What does a VIN-programmed TCM actually do?
Programming the module to your Vehicle Identification Number (VIN) loads the exact software and calibration files your specific Buick Rainier requires. This ensures it communicates correctly with your engine and other systems for optimal shift timing, fuel economy, and overall performance, right out of the box.
Is this a difficult part to install myself?
For most individuals with basic mechanical skills, this is a straightforward installation. It typically involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and reversing the process. The module is usually easy to access in the engine compartment.
Will this part fix my transmission warning light?
Yes, if the warning light and associated diagnostic trouble codes (like P0700) are being caused by a faulty TCM, this part is the correct solution. After installation, you should use a scan tool to clear any stored codes from the vehicle’s memory.
Do I need to send my old module back?
No, there is no core charge for this part. You can keep or dispose of your old module, making the process simpler and hassle-free.
How can I be sure this fits my 2006-2007 Rainier?
This module is specified for the 2006-2007 Buick Rainier. By providing your VIN during checkout, we ensure the unit is programmed specifically for your vehicle’s configuration, guaranteeing a perfect electronic and physical fit.