Restore Smooth, Predictable Shifting to Your Trailblazer
Is your Chevrolet Trailblazer suffering from harsh shifting, getting stuck in gear, or throwing transmission codes? A faulty Transmission Control Module (TCM) is often the culprit, disrupting your daily drive and causing unnecessary stress. This OEM-quality T42 TCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN. This means no expensive trips to the dealership for programming—just a straightforward installation to get your reliable SUV back on the road, performing as it should. Restore your confidence behind the wheel with a module designed for a perfect fit and lasting performance.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, this module is your answer. It’s engineered to correct the root cause of common transmission problems, clearing codes and restoring communication between your engine and transmission. Don’t let a bad module sideline your vehicle; this is the direct fix for:
- Harsh, erratic, or delayed gear shifts
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Check Engine Light or transmission warning lights are on
- Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel economy and a feeling of sluggish performance
Features & Benefits
- ✔ Plug-and-Play Installation: This module is expertly programmed to your Trailblazer’s VIN before shipping. This eliminates the need for dealer tools or additional programming fees, saving you time and money.
- ✔ Restores Factory Performance: By managing shift points, torque converter lockup, and line pressure with precision, this module restores the smooth, responsive feel your transmission had when it was new.
- ✔ Solves Annoying Electrical Faults: A failing TCM can cause a cascade of confusing error codes. Installing this quality replacement 2006-2009 Trailblazer transmission control module provides a stable, reliable fix for those persistent electronic issues.
- ✔ Built to OEM Standards: Engineered for durability and reliability, this module is built to meet or exceed original equipment specifications, ensuring it can handle the demands of your vehicle.
- ✔ No Core Charge: Keep your old part without any extra fees or the hassle of returning a core. The price you see is the price you pay.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
A Mechanic’s Perspective: For the 4L60E and 4L65E transmissions found in these Trailblazers, the TCM is the brain of the operation. Generic, unprogrammed modules often fail to account for the subtle software variations GM used over the years. A VIN-specific program ensures that all the shift strategies and torque calculations are perfectly matched to your exact vehicle configuration. This isn’t just about making the light go off; it’s about protecting the long-term health of your transmission’s mechanical components.
Frequently Asked Questions
Do I need to take this to a dealer for programming?
No. We program the module to the VIN you provide during checkout. It will arrive ready to install, requiring no further programming or setup. This makes it a true plug-and-play solution.
Where is the TCM located on my 2006-2009 Trailblazer?
On the 2006-2009 Chevrolet Trailblazer, the transmission control module is typically located in the engine compartment on the driver’s side (LH side).
Is this the correct part for my vehicle?
This 2006-2009 Trailblazer transmission control module is a direct replacement for part number 24235340 and other service numbers listed. If your vehicle and year are listed and you are experiencing the symptoms described, this is the correct part for the job.
Do I need any special tools for installation?
Basic hand tools are all that’s typically required to disconnect the battery and unbolt the module. The installation process usually takes less than 30 minutes. We do recommend having a basic OBD2 scan tool to clear any stored fault codes after the installation is complete.
Will this 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 underlying issue causing the P0700, it’s important to ensure there are no other mechanical or wiring issues. In the vast majority of cases with shifting problems, a faulty TCM is the root cause.