Is Your GMC Envoy Shifting Erratically or Stuck in Gear?
Dealing with transmission problems in your GMC Envoy can be incredibly frustrating. Harsh, unpredictable shifts, a check engine light that won’t go away, or being stuck in “limp mode” can ruin your daily drive and leave you worried about costly repairs. These are classic signs of a failing Transmission Control Module (TCM). This pre-programmed T42 Transmission Control Module is the definitive, hassle-free solution to get your SUV back on the road, operating with the smooth, reliable performance you depend on.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty TCM is the likely culprit. This module is engineered to resolve these problems directly:
- Harsh or Delayed Shifting: Clunky gear changes or a long pause before the transmission engages.
- Limp Mode Activation: Your Envoy is stuck in a single gear (usually 2nd or 3rd) to prevent further damage.
- Check Engine & Transmission Lights: Often accompanied by diagnostic trouble codes (DTCs) like P0700, P0750, or other solenoid-related faults.
- Poor Performance & Fuel Economy: Inefficient shifting leads to sluggish acceleration and more trips to the gas station.
- Complete Loss of Shifting: The transmission fails to upshift or downshift as needed.
By installing our expertly programmed 2006-2009 GMC Envoy transmission control module, you’re not just replacing a part; you’re restoring the core logic of your vehicle’s powertrain for a permanent fix.
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your Envoy’s specific Vehicle Identification Number (VIN). This means no expensive trips to the dealership for programming—simply install it and you’re ready to go.
- ✔ Restored Drivability: Experience smooth, crisp, and predictable gear shifts, just like when your vehicle was new. It ensures the torque converter locks up correctly and the transmission operates at peak efficiency.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications, ensuring reliable communication between your engine and transmission for long-lasting performance.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for a wide range of service numbers, including 24252114, 24234503, and 24230461, guaranteeing a perfect fit for your specific application.
- ✔ This unit is backed by our one-year replacement warranty.: Drive with confidence knowing your purchase is protected against defects.
Expert Insight: The Critical Role of VIN Programming
Why is VIN programming so important? In modern vehicles like your GMC Envoy, the TCM isn’t just a simple computer; it’s a networked device that must communicate perfectly with the Engine Control Module (ECM) and other vehicle systems. Our programming process loads your vehicle’s unique software and the latest GM updates directly onto the module. This ensures that all shift points, torque strategies, and diagnostic parameters are perfectly calibrated for your exact vehicle, eliminating the compatibility errors and performance issues common with generic, non-programmed units.
Don’t let a faulty TCM dictate how your vehicle drives. Take control with this reliable, easy-to-install 2006-2009 GMC Envoy transmission control module and enjoy the peace of mind that comes with a smooth-running vehicle. With no core charge, you can complete the repair without the hassle of sending the old part back. This is the smart, effective solution for the DIY mechanic and savvy owner alike.
Frequently Asked Questions
What does “VIN-programmed” actually mean for me?
It means the module is ready for installation right out of the box. We use your vehicle’s VIN to load the specific GM factory software it needs to function correctly. This eliminates the need for expensive and time-consuming programming at a dealership, saving you hundreds of dollars and significant hassle.
Can I install this module myself?
Yes, this is a very DIY-friendly repair for those with basic mechanical skills. The TCM on a 2006-2009 GMC Envoy is typically located in the engine compartment on the left-hand side. The process involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. It usually takes less than 30 minutes.
Do I need to return my old TCM?
No, there is no core charge for this part. You can keep your old module, dispose of it, or save it without any obligation to return it to us.
How do I ensure this is the correct part for my Envoy?
This module is the correct fit for the 2006-2009 GMC Envoy. You can also cross-reference the part numbers listed in the description (like 24230461, 24252114, 24234503) with the service number on your current module to confirm a perfect match. When you place your order, we will ask for your VIN to ensure 100% correct programming.
Will this fix a P0700 diagnostic trouble code?
A P0700 code is a general transmission fault code, indicating that the TCM has detected a problem. In many cases, a failing TCM is the root cause. Replacing the module with our programmed unit is a very common and effective solution for clearing a P0700 code and the more specific codes it is reporting.