Are you experiencing frustrating and unpredictable transmission behavior in your vehicle? Harsh shifts, getting stuck in gear, or a persistent check engine light can turn any drive into a stressful ordeal. These are classic signs of a failing Transmission Control Module (TCM). This replacement module is the definitive solution to restore your vehicle’s smooth, reliable performance and give you back the confidence you need on the road. It arrives fully programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits and complex programming tools.
Common Symptoms & Your Solution
A faulty TCM can cause a wide range of issues that often mimic severe mechanical failure. Before you consider a costly transmission overhaul, check if you’re experiencing any of these common symptoms. This module is the direct solution for:
- Erratic or harsh shifting between gears
- Transmission getting stuck in one gear (limp mode)
- Delayed engagement when shifting into Drive or Reverse
- Check Engine Light with transmission-related Diagnostic Trouble Codes (DTCs) such as P0700, P0751, P0756, or P0842
- Complete loss of communication with the transmission module
- Poor fuel economy due to incorrect shift timing
This Programmed 24239427 TCM is engineered to resolve these issues by restoring the critical communication link between your engine and transmission, ensuring precise, factory-spec performance.
Features & Benefits
- âś” VIN-Specific Programming: We flash the module with the latest GM software updates using your vehicle’s VIN. This ensures perfect compatibility and a true plug-and-play installation.
- âś” Restored Drivability: Eliminates harsh shifts and hesitation, bringing back the smooth and responsive feel your vehicle had when it was new.
- âś” Cost-Effective Repair: Save hundreds of dollars by avoiding dealership programming fees and diagnostic time. This is a straightforward fix for a complex electronic problem.
- âś” Direct-Fit Replacement: Designed to match the original factory part for a hassle-free installation process. It fits and functions just like the original module.
- âś” Purchase Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: Don’t Mistake an Electronic Fault for a Mechanical Failure
As a technician, I’ve seen countless drivers spend thousands on transmission work they didn’t need. A classic case involved a 2005 Trailblazer with a severe 1-2 shift bang. The owner was convinced the transmission was destroyed. After a quick scan, we found codes pointing to a faulty shift solenoid circuit, but the solenoids themselves tested fine. The root cause? The TCM. The internal drivers had failed, sending incorrect signals. By installing a Programmed 24239427 TCM, we solved the problem in under an hour for a fraction of the cost of a transmission build. This module isn’t just a part; it’s often the smart diagnosis and the right repair.
Frequently Asked Questions
Do I need to do any extra programming after installation?
No. This module arrives completely programmed to your vehicle’s VIN and is ready for installation right out of the box. A transmission fluid level check and a potential idle relearn procedure may be required, but no special scan tools are needed for programming.
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive this information, as the programming is essential for it to function in your vehicle.
Is this the correct TCM for my car?
This module is compatible with a wide range of 2005 GM vehicles. Please review the detailed fitment list on this page and cross-reference the compatible part numbers (e.g., 24223112, 24234189, 24239427). The most accurate way to ensure compatibility is to match the part number from your original TCM.
What happens if this module doesn’t fix my problem?
While this Programmed 24239427 TCM is the most common solution for electronic shifting issues, other problems can exist, such as faulty wiring or internal mechanical faults. We recommend having your vehicle properly diagnosed. This part is backed by a one-year replacement warranty for any issues with the module itself.
Where is the TCM located on my vehicle?
The location varies by model. Common locations include inside the lower air cleaner housing (Allure, LaCrosse), behind the LH strut tower (Cobalt, Ion), on the LH frame rail (Corvette), or in the LH side of the engine compartment (Envoy, Trailblazer). We always recommend consulting a service manual for your specific vehicle for the exact location and replacement procedure.