Restore Your Yukon’s Smooth, Dependable Performance
Is your 2007, 2008, or 2009 GMC Yukon suffering from harsh, erratic shifting, getting stuck in gear, or displaying a check engine light? These are classic signs of a failing Transmission Control Module (TCM). A faulty TCM can make your family SUV feel unreliable and unsafe. This VIN-programmed T42 TCM is the definitive solution, engineered to restore your vehicle’s factory performance and your peace of mind on the road. By ordering a pre-programmed module, you bypass the need for an expensive trip to the dealership for programming, saving you both time and money.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. This module is designed to resolve these problems directly:
- Abrupt, harsh, or delayed gear changes
- Vehicle entering “limp mode,” often stuck in 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 properly, leading to poor acceleration and fuel economy
- Complete loss of transmission communication or function
Installing this high-quality 2007-2009 GMC Yukon Transmission Control Module is the most effective way to correct these issues and ensure your transmission operates as it should.
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: Your module arrives pre-programmed to your Yukon’s specific Vehicle Identification Number (VIN). This eliminates the need for any additional programming or calibration—simply install it and drive.
- ✔ Restored Drivability: By precisely managing shift points, torque converter clutch lockup, and line pressure, this TCM brings back the smooth, predictable shifting you expect from your GMC.
- ✔ OEM-Standard Quality: Manufactured to meet or exceed original equipment specifications, ensuring reliable performance and long-term durability for daily driving and family trips.
- ✔ Cost-Effective Repair: Avoid the high costs and scheduling hassles of a dealership visit. This is a straightforward, effective repair you or your trusted mechanic can perform.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of VIN-Specific Programming
Why is VIN programming so critical? A generic, unprogrammed module doesn’t understand your Yukon’s unique configuration. Our process loads the latest GM-certified software that is specifically matched to your vehicle’s VIN. This ensures the 2007-2009 GMC Yukon Transmission Control Module communicates flawlessly with the Engine Control Module (ECM) and other vehicle systems, accounting for your specific engine, axle ratio, and tire size. This precision prevents compatibility issues and guarantees optimal transmission performance from the moment of installation.
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we flash the module with the specific software and calibration file from General Motors that matches your vehicle’s unique 17-digit VIN. This makes the unit ready to install and operate immediately, with no extra steps required.
Is this a difficult part to install myself?
For someone with basic mechanical skills, this is a very manageable job. The TCM is typically located in the engine compartment (often next to the battery or under the air cleaner box) and is held in by a few bolts and electrical connectors. The entire process usually takes less than 30 minutes.
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 essential to have the vehicle scanned for more specific codes (e.g., P0751, P0756) to confirm the issue lies with the TCM or a related component like a solenoid.
Do I need to return my old TCM?
No, there is no core charge for this part. You can keep your old module, which saves you the hassle and expense of shipping it back.
How can I be sure the TCM is the problem and not something else?
The symptoms listed above are strong indicators of a failing TCM. Having a professional diagnostic scan performed is the best way to confirm the diagnosis. A faulty 2007-2009 GMC Yukon Transmission Control Module is a very common failure point on these vehicles, and replacing it is often the correct solution.