Restore Flawless Shifting to Your GM Vehicle
Frustrated with erratic shifting, warning lights, or your vehicle being stuck in limp mode? A faulty Transmission Control Module (TCM) is often the culprit, disrupting your daily drive and causing unnecessary stress. This VIN-programmed T42 TCM is the definitive, hassle-free solution to restore your vehicle’s performance and your peace of mind. Designed as a direct-fit replacement for a wide range of GM cars, trucks, and SUVs, this module gets you back on the road quickly without a mandatory trip to the dealership.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely cause. This module is engineered to resolve them:
- Harsh, jerky, or delayed gear shifts
- 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 economy and transmission overheating
By installing our Programmed T42 Transmission Control Module, you are not just replacing a part; you are providing a permanent fix that restores the precise communication between your engine and transmission.
Features & Benefits
- โ Ready to Install, No Dealer Needed: We pre-program this module to your vehicleโs VIN, so it arrives ready for a true plug-and-play installation. This saves you a costly trip to the dealership for programming.
- โ Restore Smooth Performance: This module precisely controls gear changes and torque converter lockup, eliminating harsh shifts, slipping, and delayed engagement for a like-new driving experience.
- โ Clear Stubborn Warning Lights: Engineered to resolve common transmission-related Diagnostic Trouble Codes (DTCs) like P0700 and various solenoid faults, turning off that check engine light for good.
- โ Built for Longevity: Constructed to meet or exceed original equipment specifications, ensuring reliable performance and durability for thousands of miles to come.
- โ Guaranteed Performance: This unit is backed by our one-year replacement warranty.
From Our Experts: “One of the biggest hurdles in replacing a modern TCM is the required programming. Many drivers buy a module online, only to find they still need an expensive dealership visit to make it work. Our VIN programming service eliminates that step entirely. We load the latest GM software specific to your car or truck onto the module before it ships. This ensures all the shift points, pressure controls, and communication protocols are perfectly matched to your vehicle, giving you a seamless repair and optimal transmission performance from the moment you install it.”
This Programmed T42 Transmission Control Module is the smart, reliable choice for DIY mechanics and vehicle owners who demand a quality repair without the dealership price tag. Take control of your repair and get your vehicle driving perfectly again.
Frequently Asked Questions
What is a T42 TCM and what does it do?
The T42 Transmission Control Module (TCM) is the electronic brain of your automatic transmission. It receives data from various vehicle sensors to control shift solenoids, regulate fluid pressure, and manage torque converter lockup, ensuring smooth and efficient gear changes.
Is this part difficult to install?
Installation is straightforward for someone with basic mechanical skills. The TCM is typically located in the engine compartment and can be replaced in under 30 minutes. Since our Programmed T42 Transmission Control Module comes pre-programmed to your VIN, no special tools or dealer software are required for setup.
How do I provide my VIN for programming?
After you place your order, you will be prompted to provide your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians use this to load the correct factory software onto your module before shipping.
Will this fix my specific transmission problem?
This module is a direct solution for issues caused by a faulty TCM, including the common symptoms and DTCs listed above. If your vehicle has been properly diagnosed with a failed control module, this part will resolve those electronic issues. It will not fix internal mechanical failures within the transmission itself.
Do I need to return my old part (core)?
No, there is no core charge for this part. You can keep or dispose of your old module without the hassle of returning it.
What vehicles is this module compatible with?
This T42 TCM fits a very wide range of 2006-2014 General Motors vehicles, including models from Chevrolet, GMC, Pontiac, Buick, Cadillac, Saturn, and Hummer. Please refer to the detailed fitment list on this page or enter your vehicle information to confirm compatibility.