Restore Smooth, Reliable Shifting in Your Buick Rainier
Are you tired of dealing with harsh, erratic shifting, a transmission stuck in limp mode, or a persistent check engine light? A faulty Transmission Control Module (TCM) can turn your daily drive into a source of constant stress, making your vehicle feel unpredictable and unsafe. This VIN-programmed T42 Transmission Control Module is the definitive solution, engineered to restore the precise, factory-fresh performance to your 2006-2007 Buick Rainier and a wide range of other GM vehicles.
Common Symptoms & Your Solution
If your vehicle is experiencing any of the following issues, a failing TCM is the likely culprit. This module is designed to be the direct fix for:
- Harsh, banging, or delayed gear shifts
- The vehicle being stuck in one gear (limp mode)
- Illuminated Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- A sudden drop in fuel economy
- Complete loss of communication with the transmission
Instead of paying for expensive dealership diagnostics and programming fees, this module arrives ready for a simple, plug-and-play installation, getting you back on the road quickly and confidently.
Features & Benefits
- ✔ 100% Plug-and-Play Installation: This module is expertly programmed to your vehicle’s specific VIN number before shipping. This eliminates the need for any additional programming or trips to the dealer, saving you time and money.
- ✔ Restored Drivability: By managing shift points, torque converter lockup, and line pressure with precision, this TCM restores the smooth, responsive feel your vehicle had when it was new.
- ✔ Lasting Reliability: Built to meet or exceed strict OEM quality standards, this module is engineered to withstand the demanding conditions of daily driving, ensuring dependable performance for years to come.
- ✔ Solves Common Fault Codes: The pre-loaded, vehicle-specific software is designed to resolve the root cause of common transmission-related DTCs, clearing your dashboard of warning lights.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your investment is protected.
From the Expert’s Bench: A common mistake we see is replacing transmission solenoids when the TCM is the actual point of failure. The T42 module is the ‘brain’ of your transmission, and when its internal logic fails, it sends incorrect signals that can mimic a bad solenoid. Installing our correctly programmed module not only fixes the problem but prevents you from wasting money on unnecessary parts. We use the latest GM software updates during programming, which often correct factory flaws you didn’t even know were there, giving you better-than-new performance.
This Programmed T42 Transmission Control Module is the smart, effective solution for DIY mechanics and professional technicians alike. It provides a reliable and cost-effective way to fix complex transmission issues without the dealership hassle. Compatible with a vast range of 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E, it’s the right part to get the job done correctly the first time.
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean?
It means we load the module with the specific software and calibrations for your exact vehicle using its unique 17-digit Vehicle Identification Number (VIN). This ensures it communicates perfectly with your engine computer and other vehicle systems right out of the box, just like an original part from the factory.
Is this part difficult to install?
No, installation is typically very straightforward for someone with basic mechanical skills. The TCM is usually located in the engine bay and is accessible with common hand tools. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. The entire process often takes less than 30 minutes.
Will this fix my P0700 error 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 essential to have the specific transmission codes read (e.g., P0751, P0756) to confirm the diagnosis. In many cases, a faulty TCM is the root cause.
Do I need to send my old part back?
No, there is no core charge or requirement to return your old module. You can keep it or dispose of it at your convenience, making the process hassle-free.
Is this the correct Programmed T42 Transmission Control Module for my vehicle?
This module fits a wide range of 2006-2014 GM vehicles, including the 2006-2007 Buick Rainier. To ensure a perfect match, please verify your vehicle in the compatibility list or contact our expert support team with your VIN. We’re here to help you get the right part.