Is Your GM Truck or SUV Shifting Erratically?
Are you dealing with the frustration of a transmission that won’t shift correctly, gets stuck in limp mode, or constantly triggers the check engine light? A failing Transmission Control Module (TCM) can sideline even the most dependable vehicle, causing unpredictable and unsafe driving conditions. This isn’t just an annoyance; it’s a critical failure that impacts your vehicle’s performance, fuel economy, and reliability. It’s time to stop worrying about potential breakdowns and restore the crisp, decisive shifting your vehicle had when it was new.
Common Symptoms & Your Solution
A faulty T42 TCM can manifest in several ways, turning your daily drive or workday into a stressful ordeal. If you’re experiencing any of the following, this module is your definitive solution:
- Harsh, banging, or delayed gear shifts
- Vehicle stuck in a single gear (limp mode)
- Illuminated Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor acceleration and reduced fuel efficiency
This VIN Programmed T42 TCM arrives at your door ready for a direct, hassle-free installation, completely solving these common issues without requiring an expensive trip to the dealership for programming.
Features & Benefits
- ✔ Plug & Play Installation: This module is professionally programmed to your vehicle’s specific VIN number before shipping. This critical step ensures perfect communication between the TCM and your vehicle’s other systems, eliminating the need for any additional programming.
- ✔ Restore Smooth Shifting: By precisely managing shift points, line pressure, and torque converter lockup, this module restores the smooth, factory-quality performance of your automatic transmission.
- ✔ Dependable, Long-Term Fix: Engineered to meet or exceed strict OEM quality standards, this module provides a reliable and durable solution, whether you’re using your truck for heavy-duty work or as a daily family vehicle.
- ✔ Wide Compatibility: A direct replacement for a vast range of 2006-2014 General Motors vehicles, including popular models like the Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and many more equipped with 4-speed automatic transmissions.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
- ✔ No Core Charge Required: Keep your old part and avoid the hassle and expense of core returns.
From the Technician’s Bench: In the past, replacing a TCM was a two-step nightmare. You’d install the new part, only to have a non-running vehicle that needed to be towed to a dealership for expensive programming. Our VIN Programmed T42 TCM changes the game. We handle the complex programming on our end, so you or your mechanic can perform a simple, sub-30-minute installation and get your vehicle back on the road the same day. It’s the smartest, most efficient way to solve this common GM transmission problem.
Frequently Asked Questions
What does a VIN-programmed TCM mean?
It means we flash the module with your vehicle’s unique 17-digit Vehicle Identification Number (VIN) before we ship it. This loads the correct software and calibrations for your specific engine, transmission, and options, making it a true plug-and-play part that works correctly right out of the box.
Is this a difficult part to install?
No, this is a straightforward installation for a DIYer with basic tools. The TCM is typically located in the engine compartment and held in place by a few bolts. The most important step is to disconnect the vehicle’s battery before starting. After installation, you can use a basic scan tool to clear any stored codes.
Will this fix my P0700 transmission code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this VIN Programmed T42 TCM often resolves the root cause of the P0700 and related codes (like solenoid faults), it’s always best to have a full diagnostic scan to confirm the TCM is the faulty component.
Do I need to send my old TCM back?
No, there is absolutely no core charge for this part. You can keep, recycle, or dispose of your old module without any extra fees or hassle.
How do I know if this T42 TCM fits my vehicle?
Please refer to the detailed compatibility list on this page. You can match your vehicle’s year, make, and model, or cross-reference the service number on your original module with the numbers listed in our description, such as 24252114, 24234503, and 24242391.