Restore Peak Transmission Performance in Your 2007-2009 GMC Yukon
Is your GMC Yukon experiencing harsh shifting, getting stuck in gear, or displaying a check engine light with transmission codes? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating gear changes, managing torque converter lockup, and ensuring smooth, efficient operation. When it fails, it can lead to frustrating drivability issues, poor fuel economy, and even potential damage to your transmission.
This OEM-quality T42 Transmission Control Module, part number 24241806, is the definitive solution for your 2007-2009 Yukon. To eliminate the guesswork and costly trips to the dealership, each module is pre-programmed to your vehicle’s specific VIN. This ensures 100% plug-and-play compatibility right out of the box. Simply install the new module, and your Yukon’s transmission will have its precise shifting logic restored, delivering the smooth and reliable performance you expect.
From the Diagnostic Bay
We recently had a 2008 Yukon come into the shop with the complaint of intermittent, bone-jarring shifts from 1st to 2nd gear and a persistent P0700 code. The owner had already replaced a shift solenoid with no improvement. After a quick scan, we confirmed communication with the TCM was erratic. Instead of a costly transmission teardown, we identified the faulty original module. We installed one of our VIN-programmed T42 TCMs, and in under 30 minutes, the Yukon was shifting like it just rolled off the assembly line. It’s a common issue where the electronics, not the mechanicals, are the root cause.
Common Symptoms of a Failing 2007-2009 Yukon Transmission Module
- ✔️ Harsh, delayed, or erratic gear shifts that make driving uncomfortable.
- ✔️ The vehicle enters ‘limp mode,’ often getting stuck in 2nd or 3rd gear.
- ✔️ Illumination of the Check Engine Light or Transmission Warning Light on your dash.
- ✔️ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are stored.
- ✔️ A noticeable decrease in fuel efficiency as the transmission operates incorrectly.
- ✔️ Inability to shift up or down, or a complete loss of transmission function.
Plug-and-Play Simplicity
Forget about expensive towing fees and dealership programming appointments. Our VIN programming service means this module arrives ready for installation. The process is straightforward for a DIY mechanic or any professional technician. Located in the engine bay (typically next to the battery in Yukon models), swapping the module is a quick job. Disconnecting the battery beforehand helps reset the vehicle’s adaptive memory, and clearing any stored codes with a basic scan tool after installation completes the process. With no core charge, you can dispose of your old part without any hassle.
Guaranteed Compatibility and Reliability
This T42 TCM is a direct replacement for a wide range of GM service numbers, ensuring a perfect fit and function for your vehicle. Built to meet or exceed original equipment specifications, it’s backed by our one-year warranty for your peace of mind. Restore your vehicle’s drivability and confidence with a reliable, pre-programmed Yukon Transmission Module.
Frequently Asked Questions
What is VIN programming and why is it necessary?
VIN programming involves loading your vehicle’s unique Vehicle Identification Number (VIN) and the latest GM software onto the TCM. This ensures the module communicates correctly with your Yukon’s engine controller and other systems, controlling shift points and pressures exactly as the manufacturer intended. It makes the part truly plug-and-play, avoiding the need for expensive dealership tools.
Where is the TCM located on a 2007-2009 GMC Yukon?
On most 2007-2009 GMC Yukon, Tahoe, and Suburban models, the Transmission Control Module is located in the engine compartment, typically mounted next to the battery on a bracket.
Will this module 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 specific transmission codes read (e.g., P0751, P0756) to confirm the diagnosis. A faulty TCM is a very common cause for these codes.
Do I need to return my old TCM?
No, there is no core charge for this part. You can keep or dispose of your old module without needing to send it back to us, saving you time and shipping costs.
Is this compatible with other GM vehicles?
Yes, this T42 TCM is compatible with a wide array of 2006-2014 GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It interchanges with numerous part numbers, including 24252114, 24234503, and 24242391. Please check the fitment list to confirm for your specific model.