Restore Peak Transmission Performance to Your GMC Yukon
Is your 2007, 2008, or 2009 GMC Yukon suffering from frustrating transmission problems like harsh shifting, delayed gear engagement, or getting stuck in limp mode? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every shift with precision. When it fails, drivability suffers, and warning lights appear on your dash. This OEM-quality T42 Transmission Control Module, part number 24235732, is the definitive solution to restore your vehicle’s smooth, reliable operation.
The Critical Role of the Transmission Control Module
Your Yukon’s transmission, likely a 4L60E, 4L65E, or 4L70E, relies on a complex system of sensors, solenoids, and hydraulic pressure to function correctly. The TCM processes data from wheel speed sensors, the engine control module (ECM), and throttle position to determine the exact moment to shift gears, engage the torque converter clutch, and adjust line pressure. A faulty module can misinterpret this data, leading to a cascade of performance issues that can range from annoying to dangerous. Replacing a failing unit promptly is crucial to prevent further mechanical damage to your transmission.
From the Diagnostic Bay
We recently had a 2008 Yukon in the shop with classic transmission symptoms: banging into gear and a P0700 trouble code. The owner had already spent a small fortune replacing shift solenoids, believing they were the issue. After a quick scan and data stream analysis, we saw erratic commands coming from the TCM. The solenoids were just following bad orders. We installed a VIN-programmed 2007-2009 Yukon Transmission Module, cleared the codes, and the truck shifted like it just rolled off the assembly line. It’s a powerful reminder that diagnosing the root cause saves time, money, and a lot of headaches.
Signs Your 2007-2009 Yukon Transmission Module is Failing
- ✔ Erratic and Harsh Shifting: Your Yukon may slam into gear, hesitate between shifts, or feel unpredictable during acceleration.
- ✔ Stuck in Gear / Limp Mode: The vehicle may refuse to shift out of a single gear (often 2nd or 3rd) to protect the transmission from further damage.
- ✔ Check Engine and Transmission Warning Lights: The appearance of codes like P0700 (Transmission Control System Malfunction) or other solenoid-specific codes often points directly to the TCM.
- ✔ Delayed Engagement: A noticeable pause when shifting from Park to Drive or Reverse is a common symptom.
- ✔ Poor Fuel Economy: Inefficient shifting and incorrect torque converter lockup caused by a bad TCM can lead to a significant drop in gas mileage.
- ✔ No Communication: In severe cases, a scan tool may be unable to communicate with the TCM, indicating a complete failure.
Plug-and-Play Solution with VIN Programming
The biggest hurdle in replacing a modern vehicle module is programming. This T42 TCM eliminates that problem entirely. We pre-program the module with your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that it arrives with the latest GM software updates and is perfectly calibrated for your Yukon’s specific configuration. There is no need for an expensive trip to the dealership for programming. It’s a true plug-and-play installation that you can perform in your own driveway in under 30 minutes. This not only saves you money but also gets your truck back on the road faster.
Guaranteed Fitment and Reliability
This module is a direct replacement for a wide range of GM vehicles from 2006-2014 and is interchangeable with numerous part numbers, including 24252114, 24234503, and 24242391. Built to strict OEM specifications, it guarantees a perfect fit and reliable, long-lasting performance. With a one-year warranty, you can drive with confidence knowing your transmission is in good hands. Don’t let a faulty module sideline your vehicle. Order this pre-programmed 2007-2009 Yukon Transmission Module today and experience the difference in performance and drivability.
Frequently Asked Questions
What is VIN programming and why is it important?
VIN programming involves loading your vehicle’s specific software and calibrations onto the module before shipping. This ensures the TCM works perfectly with your Yukon’s engine, transmission, and options right out of the box, eliminating the need for dealership programming.
Is this a difficult part to install myself?
No, installation is straightforward for most DIY mechanics. On a 2007-2009 Yukon, the TCM is typically located in the engine bay, next to the battery. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one. The entire process usually takes less than 30 minutes.
Will this module fix my specific transmission trouble codes?
This module is the direct solution for failures causing codes like P0700, P0750, and other solenoid circuit faults. If the module itself is the source of the problem, this replacement part will resolve those codes once installed and any old codes are cleared with a scan tool.
Do I need to send my old part back (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, simplifying the repair process.
How do I provide my VIN for programming?
You can enter your vehicle’s 17-digit VIN during the checkout process on our website. Please double-check it for accuracy to ensure correct programming.