Are you experiencing frustrating and unpredictable transmission problems with your GMC Yukon? Harsh shifting, getting stuck in gear, or a persistent check engine light can make your reliable family SUV feel unsafe and stressful to drive. Restore its smooth, dependable performance with our pre-programmed T42 Transmission Control Module (TCM), the definitive solution to get your vehicle back on the road with confidence.
Common Symptoms & Your Solution
A failing TCM is the central computer for your transmission, and when it malfunctions, it can cause a cascade of issues. If you’re noticing any of the following signs, this module is the fix you need:
- Harsh or Erratic Shifting: Abrupt, jerky gear changes or a noticeable delay when shifting between gears.
- Limp Mode Activation: The vehicle gets stuck in a single gear (usually 2nd or 3rd) to prevent further damage.
- Warning Lights: The Check Engine Light or a specific transmission warning light is illuminated on your dash.
- Diagnostic Trouble Codes (DTCs): Common codes like P0700 (Transmission Control System Malfunction), P0750, or other solenoid-related faults are stored in the computer.
- Poor Performance: A sudden drop in fuel economy, failure to upshift or downshift, or a feeling of slipping out of gear.
This expertly prepared 2007-2009 GMC Yukon Transmission Control Module directly addresses these problems by replacing the faulty electronic brain of your transmission with a reliable, OEM-quality unit.
Features & Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your Yukon’s specific Vehicle Identification Number (VIN). This critical step ensures perfect communication with your vehicle’s other computers, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM restores the smooth, responsive shifting you expect from your vehicle.
- ✔ Lasting Reliability: Built to meet or exceed original equipment standards, this module is designed to withstand the demands of daily driving and towing, providing a long-term solution to your transmission woes.
- ✔ Clear Fault Codes: A new, properly functioning TCM is essential for resolving persistent transmission-related DTCs and turning off that check engine light for good.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
- ✔ No Core Charge: Keep your old part without the hassle or expense of returning a core, simplifying your repair process.
Expert Insight: Why VIN Programming is Non-Negotiable
In modern vehicles like the GMC Yukon, the TCM doesn’t just control the transmission—it’s part of a complex network that includes the Engine Control Module (ECM), Anti-lock Brake System (ABS), and more. Generic, unprogrammed modules can’t speak the right ‘digital language,’ leading to continued performance issues or even new error codes. Our VIN-specific programming loads the latest GM software updates tailored to your exact vehicle build. This ensures all systems work together seamlessly from the moment of installation, just as the factory intended. It’s the difference between a temporary patch and a true, lasting repair for your 2007-2009 GMC Yukon Transmission Control Module.
Don’t let a faulty TCM sideline your SUV. By installing this precisely programmed 2007-2009 GMC Yukon Transmission Control Module, you’re not just buying a part; you’re investing in peace of mind and restoring the dependable workhorse your family relies on. Order today and experience the difference a quality, correctly programmed component makes.
Frequently Asked Questions
Will this module require additional programming after installation?
No. This T42 TCM is delivered fully pre-programmed to your vehicle’s VIN. It is ready for a plug-and-play installation right out of the box, saving you a costly and time-consuming visit to the dealership.
Is this TCM difficult to install?
Installation is straightforward for someone with basic mechanical skills. The module is typically located in the engine bay (often next to the battery or under the air cleaner box) and can be swapped in under 30 minutes. We recommend disconnecting the battery before starting and using a scan tool to clear any old codes after installation.
How do I know for sure if my TCM is the problem?
Common signs include erratic shifting, the vehicle being stuck in ‘limp mode,’ and specific transmission-related diagnostic codes like P0700. While these symptoms strongly point to a failing TCM, it’s always best to have a qualified mechanic perform a full diagnostic scan to rule out other potential issues like faulty solenoids or wiring.
Is this compatible with transmissions other than the one in my Yukon?
Yes, this GM T42 TCM is compatible with a wide range of GM vehicles from 2006-2014 equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. This includes many Chevrolet, GMC, Buick, Cadillac, Pontiac, and Saturn models. Please check the fitment list to confirm compatibility with your specific vehicle.
Do I need to return my old TCM?
No, there is no core charge associated with this part. You can keep or dispose of your old module without any extra fees or hassle.