Restore Peak Performance to Your GMC Yukon’s Transmission
Is your 2007-2009 GMC Yukon suffering from frustrating and unpredictable transmission problems? Harsh clunking between gears, getting stuck in limp mode, or a persistent check engine light can turn your reliable family SUV into a source of stress. This VIN-programmed T42 Transmission Control Module (TCM) is the definitive solution, engineered to restore the smooth, responsive shifting you expect and get you back on the road with confidence.
Common Symptoms & Your Solution
A failing TCM can manifest in several ways, disrupting your vehicle’s performance and safety. If you’re experiencing any of the following, this module is designed to be the fix:
- Harsh, erratic, or delayed gear shifts
- Vehicle stuck in a single gear (limp mode)
- Illuminated Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes
- Complete failure to shift up or down
- Noticeably poor fuel economy
By replacing your old unit with our precisely configured Programmed 2007-2009 Yukon Transmission Control Module, you’re not just swapping a part—you’re installing a permanent solution that communicates flawlessly with your vehicle’s entire electronic system from the moment you plug it in.
Features & Tangible Benefits
- ✔ Plug-&-Play Installation: This module arrives pre-programmed to your Yukon’s specific Vehicle Identification Number (VIN). This critical step ensures perfect compatibility and eliminates the need for expensive programming at a dealership.
- ✔ Restored Drivability: Regain the smooth, predictable shifting your vehicle had when it was new. Our T42 TCM precisely manages torque converter lockup and gear changes for optimal performance and fuel efficiency.
- ✔ Eliminate Annoying Warning Lights: This module is engineered to resolve the internal electronic faults that trigger transmission-related DTCs, clearing your dashboard of persistent warning lights.
- ✔ Engineered for Reliability: Built to meet or exceed strict OEM specifications, this module provides a dependable, long-term solution to common transmission electronic failures.
- ✔ One-Year Warranty Protection: This unit is backed by our one-year replacement warranty, giving you complete peace of mind with your purchase.
Expert Insight: Why VIN Programming is Non-Negotiable
In a modern vehicle like your GMC Yukon, the TCM doesn’t work in isolation. It constantly communicates with the Engine Control Module (ECM), Anti-lock Brake System (ABS), and other onboard computers. Our VIN-programming service ensures this digital handshake is perfect. We load the latest GM software specific to your vehicle, guaranteeing the module understands the exact engine type, gear ratios, and tire size. This prevents compatibility conflicts that can cause performance issues or even damage to your transmission down the line—a crucial step often skipped by generic, non-programmed parts.
Frequently Asked Questions
What does a Transmission Control Module (TCM) do?
The TCM is the brain of your automatic transmission. It receives data from various sensors on the engine and vehicle, and uses that information to control when the transmission shifts gears, ensuring smooth operation, optimal engine performance, and fuel efficiency.
Is this part difficult to install?
Installation is straightforward for a knowledgeable DIYer or any professional mechanic. The TCM is typically located in the engine compartment next to the battery. The process involves disconnecting the battery, unplugging the electrical connectors from the old module, swapping it with the new one, and reconnecting everything. Since our Programmed 2007-2009 Yukon Transmission Control Module is pre-configured, no further computer setup is required.
How do I know this is the right part for my Yukon?
This T42 TCM is specifically for 2007, 2008, and 2009 GMC Yukon models. During checkout, we require your vehicle’s VIN to ensure we program the module with the exact software for your specific configuration, guaranteeing a perfect match.
Do I need to send my old part back?
No. We do not require a core charge for this part. You can keep or dispose of your old module without the hassle of returning it.
Will this module fix specific error codes like P0700?
Yes. A P0700 code is a general fault code indicating the TCM has detected a problem. This module is designed to fix the internal electronic failures that are the root cause of P0700 and many other transmission-specific codes, such as those related to shift solenoids.