Is Your GM Vehicle Shifting Erratically or Stuck in Limp Mode?
A faulty Transmission Control Module (TCM) can turn your dependable truck, van, or SUV into a source of constant frustration. If you’re experiencing harsh gear changes, delayed engagement, or persistent warning lights, your T42 TCM has likely failed. This isn’t just an inconvenience; it affects your vehicle’s performance, fuel economy, and safety. Get your vehicle operating reliably again with our expertly programmed 24256960 T42 Transmission Control Module, the definitive solution for restoring your transmission’s peak performance.
Common Symptoms & Your Solution
A failing TCM will make itself known through a variety of frustrating symptoms. This module is the direct fix for issues including:
- Harsh, erratic, or delayed shifting
- Vehicle stuck in a single gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel efficiency and potential transmission overheating
Our pre-programmed T42 TCM directly addresses these problems by restoring the critical communication link between your engine and transmission, ensuring every shift is smooth, crisp, and perfectly timed.
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This eliminates the need for expensive dealership programming or specialized scan tools, saving you time and money.
- ✔ Restored Drivability: By precisely controlling shift points, torque converter lockup, and line pressure, this TCM brings back the smooth, responsive feel your vehicle had when it was new.
- ✔ OEM-Standard Quality: Engineered to meet or exceed original equipment specifications, ensuring long-lasting durability and reliable operation for your work van, family SUV, or daily driver.
- ✔ Comprehensive Compatibility: A direct replacement for a wide range of service numbers including 24252114, 24234503, 24242391, and more, making it the right fit for dozens of GM models from 2006 to 2014.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
Your vehicle’s TCM doesn’t work in isolation. It’s part of a complex network that includes the Engine Control Module (ECM) and Body Control Module (BCM). For your transmission to function correctly, the TCM must have the exact software and calibrations for your vehicle’s specific configuration—engine, axle ratio, and tire size. Our VIN programming process installs the latest GM-certified software onto the 24256960 T42 Transmission Control Module before it ships. This ensures seamless integration the moment you plug it in, preventing the communication errors and performance issues that plague non-programmed or incorrectly programmed modules.
Frequently Asked Questions
What does a T42 TCM actually do?
The Transmission Control Module, or TCM, is the electronic brain of your automatic transmission. It collects data from various sensors on the vehicle and uses that information to control exactly when and how the transmission shifts gears, ensuring optimal performance, fuel efficiency, and smoothness.
Is this part difficult to install?
For most models, installation is straightforward and can be completed in under 30 minutes with basic hand tools. The TCM is typically located in the engine compartment. Because this unit is pre-programmed, the most complex part of the job—the software setup—is already done for you.
Will this fix my specific error code, like P0700?
A P0700 code is a general fault code indicating the TCM has detected a problem. This 24256960 T42 Transmission Control Module is often the root cause and solution for P0700 and many other transmission-specific codes. Once installed, be sure to clear any old codes with a standard scan tool.
Do I need to send my old part back?
No. This part is sold without a core charge. You can keep your old module, which saves you the time and hassle of packaging and shipping it back to us.
How do I know this is the right part for my vehicle?
This module fits a wide range of 2006-2014 GM vehicles. The best way to confirm fitment is to match your original part number to one of the interchangeable numbers listed in the description or use our vehicle lookup tool. Providing your VIN at checkout ensures we program it perfectly for your specific application.