Restore Smooth, Reliable Shifting to Your GMC Yukon
Is your GMC Yukon suffering from harsh, erratic shifting, getting stuck in gear, or displaying a persistent check engine light? These are classic signs of a failing Transmission Control Module (TCM), the electronic brain of your automatic transmission. A faulty TCM can disrupt your daily drive, compromise safety, and lead to more severe transmission damage if left unaddressed. This pre-programmed T42 TCM is the definitive solution, engineered to restore your vehicle’s factory performance and your peace of mind.
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 be the direct solution for:
- Abrupt, harsh, or delayed gear shifts
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Active Check Engine Light or Transmission Warning Light
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel economy and potential transmission overheating
Installing our expertly programmed 2007-2009 GMC Yukon Transmission Control Module directly resolves these issues, recalibrating your transmission’s behavior for smooth, efficient, and reliable operation without a costly trip to the dealership.
Features & Benefits
- ✔ Plug & Play Installation: This module arrives pre-programmed to your Yukon’s specific Vehicle Identification Number (VIN). This critical step ensures perfect communication between the TCM and your vehicle’s other systems, eliminating the need for expensive dealership programming.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the smooth and predictable driving experience you expect from your vehicle.
- ✔ Lasting Reliability: Built to meet or exceed strict OEM specifications, this module provides a dependable, long-term fix for your transmission problems, ensuring your Yukon is ready for daily commutes or family road trips.
- ✔ Clear Fault Codes: A properly functioning TCM is essential for clearing persistent transmission-related DTCs and turning off the check engine light for good.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
As a veteran technician, I can’t stress this enough: on modern vehicles like your Yukon, simply swapping a TCM isn’t enough. The module must be programmed with your vehicle’s unique VIN. This process loads the correct software and calibration files for your specific engine, axle ratio, and tire size. Skipping this step is like giving your transmission a brain with amnesia—it leads to incorrect shifting, performance issues, and can even cause damage. Our VIN programming service ensures this 2007-2009 GMC Yukon Transmission Control Module works perfectly right out of the box, saving you time, money, and headaches.
Whether you’re hauling the family, towing a trailer, or just navigating city streets, you need a transmission you can count on. This module is the key to restoring that confidence. By replacing your failing unit with this quality, programmed 2007-2009 GMC Yukon Transmission Control Module, you’re not just buying a part—you’re investing in the continued reliability and safety of your vehicle.
Frequently Asked Questions
What does a Transmission Control Module do?
The TCM is a computer that controls your automatic transmission. It reads data from various sensors in the engine and transmission to determine the perfect moment to shift gears, ensuring smooth acceleration, optimal performance, and fuel efficiency.
Is this TCM difficult to install?
Installation is generally straightforward for someone with basic mechanical skills and typically takes under an hour. The TCM is located in the engine compartment. Always disconnect the battery before starting. After installation, you can use a basic scan tool to clear any stored fault codes.
Do I need to program this module?
No. The main benefit of our service is that we pre-program the module to your vehicle’s VIN before shipping. It arrives ready for a plug-and-play installation, saving you a trip to the dealership and additional programming fees.
Will this fix my check engine light?
If the check engine light is on due to transmission-related fault codes (like P0700), this module is designed to correct the underlying electronic issue. After installation and clearing the codes, the light should stay off.
What happens if I don’t replace a bad TCM?
Ignoring a failing TCM can lead to progressively worse shifting, poor fuel economy, and unpredictable vehicle behavior. In some cases, it can cause excessive wear and tear on internal transmission components, leading to a much more expensive mechanical failure.
Is there a core charge for this part?
No, we do not require a core charge. You can keep or dispose of your old part without the hassle of returning it.