Restore Peak Performance to Your SUV’s Transmission
Is your 2006 GMC Envoy XL suffering from frustrating and unpredictable transmission problems? If you’re dealing with harsh, erratic shifting, getting stuck in gear, or a persistent check engine light, a failing Transmission Control Module (TCM) is the most likely culprit. Don’t let a faulty module sideline your vehicle. This professionally programmed T42 TCM is the definitive, hassle-free solution to restore your transmission’s smooth operation and get you back on the road with confidence.
Common Symptoms & Your Solution
A failing TCM can cause a cascade of issues that make your vehicle unreliable and unsafe to drive. If you recognize any of the following symptoms, this pre-programmed 2006 GMC Envoy XL transmission control module is the high-quality fix you need:
- Harsh or jarring gear shifts
- Delayed engagement when shifting from Park to Drive or Reverse
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Active Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Noticeably poor fuel economy
Features and Benefits
- ✔ Ready to Install, No Dealer Visit Needed: We program this module to your vehicle’s specific VIN using the latest GM software updates. This ensures it works perfectly right out of the box, saving you a costly and time-consuming trip to the dealership for programming.
- ✔ Restore Smooth & Dependable Shifting: This T42 TCM is engineered to correct harsh shifts, slipping, and delayed engagement, bringing back the smooth, predictable performance you rely on for daily driving and hauling.
- ✔ Built for Lasting Reliability: Manufactured to meet or exceed original GM specifications, this module is built to withstand the demands of your Envoy XL, ensuring long-term durability and performance.
- ✔ Guaranteed Fit & Function: This is a direct replacement for a wide range of service numbers, including 24252114, 24234503, and 24240400, ensuring a perfect match for your vehicle’s system.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight from Our Technicians
A common mistake we see is installing a generic, non-programmed TCM. This often leads to the same shifting problems or even new error codes because the module can’t communicate correctly with the engine and other vehicle systems. Our VIN-specific programming eliminates this guesswork, loading the latest GM software for your exact vehicle. It’s not just about replacing a part; it’s about restoring the entire transmission’s ‘brain’ to its optimal operational state.
By taking control of critical functions like shift timing, torque converter lockup, and line pressure, a fully functional TCM is essential for your transmission’s health and your vehicle’s overall drivability. Whether you’re a seasoned mechanic or a determined DIYer, installing this 2006 GMC Envoy XL transmission control module will restore your peace of mind and confidence on the road. Installation is straightforward, with no core charge required—simply install the new part and keep the old one.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This Transmission Control Module comes pre-programmed to your vehicle’s specific VIN. It is ready for a plug-and-play installation right out of the box, saving you the time and expense of a dealership visit.
What are the most common signs my 2006 Envoy XL TCM is failing?
The most common symptoms include harsh or erratic shifting, the vehicle getting stuck in ‘limp mode’ (one gear only), a lit check engine or transmission warning light, and specific diagnostic codes like P0700.
Is this part difficult to install?
For most models, including the Envoy XL, the TCM is located in the engine compartment and is relatively easy to access. Installation is straightforward and can typically be completed in under 30 minutes with basic hand tools. We recommend disconnecting the battery before starting the replacement.
Will this fix transmission error codes like P0700?
Yes, this module is designed to resolve the internal electronic faults that cause common transmission-related DTCs, including P0700 (Transmission Control System Malfunction) and various solenoid codes. After installation, be sure to clear any old codes with a scan tool.
Is there a core charge for my old part?
No, there is no core charge. You are not required to send your old TCM back to us, which simplifies the repair process for you.