Is your 2005 GMC Envoy 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). Don’t let transmission problems leave you stranded or facing an expensive, uncertain repair. This direct-fit, professionally programmed TCM is the definitive solution to restore your vehicle’s performance and your confidence on the road.
Common Symptoms & Your Solution
A faulty TCM can cause a cascade of frustrating issues. You might be experiencing hard 1-2 shifts, delayed gear engagement, incorrect speedometer readings, or complete loss of communication with the transmission. Often, you’ll see Diagnostic Trouble Codes (DTCs) like P0740, P0753, P0758, P0785, or P1860. This module is engineered to resolve these problems at their source. By purchasing our 2005 GMC Envoy Transmission Control Module, you’re not just buying a part; you’re getting a plug-and-play solution that eliminates the guesswork and the need for a costly trip to the dealership for programming.
- โ VIN-Programmed for Your Envoy: We flash the module with the latest GM software updates using your specific Vehicle Identification Number. This ensures perfect compatibility and function right out of the box.
- โ Eliminate Harsh Shifting: Restores the smooth, decisive gear changes your vehicle had when it was new, improving both comfort and performance.
- โ Clear Annoying Check Engine Lights: This module is the correct fix for many transmission-related DTCs, allowing you to finally clear those codes for good.
- โ No Dealer Visit Required: Because we handle all the programming, you can install it yourself or have your trusted mechanic do the job, saving you time and hundreds of dollars in dealer fees.
- โ Broad GM Compatibility: This unit is a direct replacement for multiple part numbers, including 24223112, 24226863, 24233595, 24234189, and 24239427, fitting a wide range of 2004-2005 GM vehicles.
- โ Guaranteed Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
As a veteran technician, I can’t stress this enough: for modern GM vehicles, generic, non-programmed modules are a recipe for disaster. Your Envoy’s VIN contains specific information about its engine, drivetrain, and factory options. Our VIN-specific programming ensures the 2005 GMC Envoy Transmission Control Module communicates flawlessly with the Engine Control Module (ECM) and Body Control Module (BCM). This prevents a host of potential issues, from incorrect shift points to features not working correctly. We take on this complex step so you receive a part that is truly ready for installation, giving you a reliable, long-term repair.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the TCM with the exact software and calibrations for your specific 2005 GMC Envoy. This ensures seamless communication with other vehicle computers and guarantees correct transmission operation.
Is any additional programming needed after I install it?
No. This module arrives fully programmed and ready for installation. In most cases, a transmission fluid pressure (TFP) switch relearn may be recommended with a capable scan tool, but no further flashing or programming is required, saving you a trip to the dealer.
What are the most common problems this part fixes?
This TCM directly resolves issues like harsh 1-2 upshifts, getting stuck in one gear (limp mode), no communication with the scan tool, and common transmission-related diagnostic trouble codes (DTCs).
How do I know if my original TCM has failed?
Besides the symptoms mentioned above, a definitive diagnosis can be made with a professional scan tool that can check for communication with the TCM and read transmission-specific codes. If the module is not communicating or is throwing solenoid circuit codes, it is very likely the culprit.
Does this part fit other GM vehicles besides the Envoy?
Yes, this is a very common TCM used across the GM lineup in 2005. It fits models like the Trailblazer, Rainier, Corvette, GTO, Cobalt, and more, as listed in the vehicle compatibility chart. We will program it specifically for the VIN you provide, regardless of the model.
What is the warranty on this module?
This unit is backed by our one-year replacement warranty. This provides you with confidence and peace of mind in your purchase.