Restore Peak Transmission Performance in Your Buick Terraza
Is your 2006-2007 Buick Terraza experiencing harsh shifting, getting stuck in gear, or displaying a check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for managing shift points, torque converter clutch engagement, and fluid pressure. When it fails, it can lead to poor performance, decreased fuel economy, and potential damage to your transmission. This replacement T42 TCM, part number 24234503, is the definitive solution to restore your vehicle’s drivability and reliability.
Common Symptoms of a Failing Terraza TCM
- ✔ Unpredictable or harsh gear shifts
- ✔ Vehicle entering “limp mode” (stuck in 2nd or 3rd gear)
- ✔ Check Engine Light or Transmission Warning Light illuminated
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700 or solenoid-related faults
- ✔ Delayed engagement when shifting from Park to Drive or Reverse
- ✔ Poor fuel efficiency and transmission overheating
- ✔ Complete loss of shifting capability
Why Our 2006-2007 Terraza TCM is the Right Choice
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The most critical aspect of replacing a modern TCM is the programming. Our modules are meticulously programmed to your vehicle’s specific Vehicle Identification Number (VIN) before they ship. This means you receive a part that is truly plug-and-play. There is no need for an expensive trip to the dealership for programming or initialization. We load the latest GM software updates, which can resolve factory-related issues and improve overall transmission logic. Built to meet or exceed original equipment specifications, this module ensures long-lasting performance and reliability for your vehicle.
Simple, Direct Installation
For the 2006-2007 Buick Terraza, the TCM is conveniently located on the LH (driver’s side) strut tower in the engine compartment, making for a straightforward replacement. The process typically takes less than 30 minutes with basic hand tools. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Once installed and the battery is reconnected, your vehicle is ready to go. We also eliminate the hassle of core charges, so you don’t have to worry about sending your old, faulty part back.
Frequently Asked Questions
Is this module truly plug-and-play?
Absolutely. We program the module with your vehicle’s VIN before shipping. This ensures it communicates perfectly with your engine computer and other systems right out of the box, with no additional programming required.
Where is the TCM located on my 2006-2007 Buick Terraza?
On the Terraza and similar GM minivans like the Uplander and Montana, the Transmission Control Module is typically found bolted to the driver’s side strut tower in the engine bay.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While a faulty TCM is a common cause, this code can also be triggered by other transmission issues. However, if you are experiencing other symptoms listed, replacing the 2006-2007 Terraza TCM is the most likely solution.
Does this part come with a warranty?
Yes, this transmission control module comes with a one-year warranty, giving you peace of mind with your purchase.
My old module has a different service number. Will this still work?
Yes, this module is a direct interchange for multiple GM service numbers, including 24242391, 24252114, 24230461, and others. As long as your vehicle is listed in our fitment guide, this part will work perfectly once programmed to your VIN.