Is Your Buick Terraza Experiencing Transmission Problems?
If you’re dealing with harsh shifting, delayed gear engagement, or a check engine light that points to transmission codes, a faulty Transmission Control Module (TCM) is the most likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every shift with precision. When it fails, it can make your 2006-2007 Buick Terraza feel unpredictable and unsafe to drive. This genuine GM T42 Transmission Control Module, part number 24235732, is the definitive solution to restore your vehicle’s performance and peace of mind.
Symptoms of a Failing 2006-2007 Terraza TCM
A failing TCM can manifest in various ways, often mimicking mechanical transmission failure. Before considering a costly transmission rebuild, check if your vehicle is exhibiting these common electronic symptoms:
- ✔ Harsh or erratic gear shifts that slam into place.
- ✔ The vehicle gets stuck in a single gear (limp mode) to prevent further damage.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ Illumination of the Check Engine Light or Transmission Warning Light.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- ✔ Poor fuel economy and a feeling of sluggish acceleration.
- ✔ Complete failure to upshift or downshift as needed.
The Plug-and-Play Solution: VIN Programming Included
Dealerships and many auto shops will sell you a blank module that requires expensive, specialized equipment to program it to your vehicle. Our process eliminates that hassle and cost. We pre-program this module with your vehicle’s specific Vehicle Identification Number (VIN) and the latest GM software updates before it ships. This ensures that the TCM communicates flawlessly with your vehicle’s Engine Control Module (ECM) and other systems right out of the box. Simply install it, and you’re ready to go—no additional programming is required.
This module is a direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is an exact fit for your 2006-2007 Terraza TCM and serves as a reliable replacement for multiple service numbers, including 24252114, 24234503, and 24242391.
Simple Installation to Get You Back on the Road
Replacing the TCM is a straightforward process that can be completed in under an hour with basic hand tools. On the 2006-2007 Buick Terraza, the module is conveniently located on the LH strut tower in the engine compartment.
- Safety First: Always disconnect the negative battery terminal before beginning work. This prevents electrical shorts and helps reset the vehicle’s adaptive learning parameters.
- Locate and Remove: Find the old TCM, disconnect the electrical connectors (they have locking tabs), and unbolt it from its bracket.
- Install the New Module: Bolt the new, pre-programmed module in place and securely reconnect the wiring harnesses.
- Final Steps: Reconnect the battery. While the module is plug-and-play, it’s always best practice to use a standard OBD2 scan tool to clear any stored diagnostic codes after installation.
With no core charge, you don’t have to worry about the cost and hassle of sending your old, faulty part back. It’s a simple, effective repair that saves you time and money.
Frequently Asked Questions
What is VIN programming and why is it important?
VIN programming loads your vehicle’s specific software and calibrations onto the module. This ensures it communicates correctly with the engine and other vehicle systems for optimal shift timing, fuel efficiency, and performance. Without it, the module will not function in your vehicle.
Is this a difficult part to install myself?
For most DIY mechanics, this is a relatively easy installation. It’s typically mounted in an accessible location in the engine bay and requires only basic tools. The entire process usually takes less than 30 minutes.
Do I need to send my old module back?
No. We do not require a core return for this part. You can keep or dispose of your old module without any additional charges or hassle.
How can I be sure the TCM is the problem?
While the symptoms listed are strong indicators, a proper diagnosis with a professional scan tool is the best way to confirm. If you see communication error codes or specific TCM failure codes (like P0700), it’s highly likely the module is at fault. This part is an excellent first step before considering more expensive mechanical repairs.
Will this fit other GM vehicles?
Yes, this T42 TCM hardware fits a wide variety of GM cars, trucks, and SUVs from 2006-2014. However, the critical part is the VIN-specific programming. We program it specifically for the vehicle you order it for, ensuring perfect compatibility.