Is Your GMC Envoy Shifting Poorly?
Experiencing harsh, erratic shifting, or a transmission stuck in ‘limp mode’ can be incredibly frustrating and concerning. When your 2006-2009 GMC Envoy starts showing these symptoms, or the check engine light illuminates with transmission codes, the culprit is often a failing Transmission Control Module (TCM). Don’t let a faulty module compromise your vehicle’s performance and your peace of mind. This VIN-programmed T42 TCM is the definitive, hassle-free solution to get your SUV driving smoothly again.
Common Symptoms & Your Solution
A failing TCM can manifest in various ways, disrupting your drive and signaling a critical issue. If you’re noticing any of the following, it’s time for a replacement:
- Harsh, delayed, or unpredictable gear shifts
- The vehicle is stuck in a single gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift correctly
- Noticeably poor fuel economy
This module is the direct solution, engineered to resolve these issues and restore your transmission’s factory-spec operation. By installing our expertly programmed 2006-2009 GMC Envoy Transmission Control Module, you are not just replacing a part; you are restoring the precise communication between your engine and transmission.
Features & Benefits
- âś” Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This crucial step eliminates the need for expensive dealership programming, saving you time, money, and the hassle of towing your vehicle for service.
- âś” Restored Performance: By precisely managing shift points, torque converter lockup, and line pressure, this TCM restores the smooth, responsive feel your Envoy had when it was new.
- âś” Lasting Reliability: Built to stringent OEM standards, this module is designed for durability. It corrects common electronic failures, ensuring dependable performance for years to come.
- âś” Broad Compatibility: This T42 TCM is a direct replacement for multiple service numbers, including 24252114, 24234503, 24239926, and more, ensuring a perfect fit for a wide range of GM vehicles.
- âś” Warranty Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of Pre-Programming
Many people don’t realize that a new TCM won’t work correctly out of the box. It needs to be loaded with software specific to the vehicle’s VIN. In the past, this meant a mandatory trip to a dealer with specialized tools. Our pre-programming service is a game-changer. We handle this complex process for you, using the latest GM calibrations. This means a DIY-savvy owner or any independent mechanic can complete the job, turning a potentially week-long ordeal into a simple, 30-minute parts swap.
By choosing this pre-programmed 2006-2009 GMC Envoy Transmission Control Module, you’re not just buying a part—you’re buying a complete, ready-to-install solution that gets you back on the road quickly and confidently. Don’t settle for ongoing transmission problems; install the reliable fix today.
Frequently Asked Questions
What exactly does a Transmission Control Module do?
The TCM acts as the brain for your automatic transmission. It uses data from various vehicle sensors to control gear shifting, fluid pressure, and torque converter operation, ensuring optimal performance, fuel efficiency, and smooth driving.
Why is VIN programming so important for this part?
Each GM vehicle has unique software calibrations based on its engine, axle ratio, and other features. VIN programming loads this specific software onto the module, ensuring it communicates perfectly with your Envoy’s other computers. Without it, the transmission will not function correctly.
Is this a difficult part to install myself?
For someone with basic mechanical skills, installation is straightforward. The TCM is typically located in the engine compartment. The process involves disconnecting the battery, unplugging the old module’s electrical connectors, swapping the part, and reconnecting everything. Since it’s pre-programmed, no further steps are needed.
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 of a P0700, it’s always best to have the specific transmission codes (like P07xx) read to confirm the diagnosis. A failing TCM is a very common cause for this code.
Do I need to return my old TCM (core charge)?
No, there is no core charge for this part. You can keep or dispose of your old module without any hassle or additional cost.
Is this the correct 2006-2009 GMC Envoy Transmission Control Module for my vehicle?
Yes, this part is specified for the 2006-2009 GMC Envoy. It is also compatible with a wide range of other GM vehicles. Providing your VIN at checkout ensures we program it with the exact software for your specific vehicle configuration.