Is your 2006-2011 Chevrolet Impala suffering from harsh shifting, delayed gear engagement, or a frustrating check engine light? These are classic signs of a failing Transmission Control Module (TCM). Don’t let unpredictable transmission behavior compromise your daily drive. This professionally programmed T42 TCM is the definitive, hassle-free solution to restore the smooth, reliable performance your vehicle was built for, getting you back on the road with confidence.
Common Symptoms & Your Solution
A faulty TCM can cause a cascade of frustrating issues. If you’re experiencing any of the following, this module is the direct-fit fix you need:
- Harsh or Erratic Shifting: Abrupt, jerky gear changes that make driving uncomfortable.
- Limp Mode: The vehicle gets stuck in a single gear (usually 2nd or 3rd) to prevent further damage.
- Warning Lights: A persistent Check Engine Light or Transmission Warning Light on your dash.
- Diagnostic Trouble Codes (DTCs): Common codes like P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid Errors), or other transmission-related faults.
- Delayed Engagement: A noticeable lag when shifting from Park into Drive or Reverse.
- Poor Fuel Economy: Inefficient shifting patterns can lead to a significant drop in your MPG.
This module is engineered to resolve these problems at their source. As a critical component, a properly functioning 2006-2011 Impala transmission control module is essential for communicating between the engine and the transmission, ensuring every shift is precise and efficient.
Key Features & Tangible Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This crucial step eliminates the need for expensive dealership programming or specialized tools, saving you time and money.
- ✔ Restored Drivability: Experience the return of smooth, crisp, and predictable gear shifts, just like when your car was new.
- ✔ Eliminate Warning Lights: Our programming correctly addresses the root electronic faults, allowing you to clear persistent transmission-related DTCs and turn off that annoying check engine light.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications, ensuring long-term durability and reliable performance for your daily commute or long road trips.
- ✔ No Core Charge: Keep your old part without the hassle or expense of returning a core. The price you see is the price you pay.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
Many sellers offer generic, unprogrammed modules, but for modern GM vehicles, this is a recipe for failure. The T42 TCM is the ‘brain’ of your transmission, and it must communicate flawlessly with your vehicle’s Engine Control Module (ECM) and Body Control Module (BCM). Without programming to your specific VIN, these systems can’t sync, leading to immediate error codes, continued limp mode, or even a no-start condition. We handle this essential programming before we ship, using the latest GM calibrations. This ensures your new 2006-2011 Impala transmission control module integrates perfectly with your car’s unique electronic signature from the moment you install it.
Frequently Asked Questions
What does the Transmission Control Module (TCM) do?
The TCM is a computer that controls your automatic transmission. It reads data from various sensors on the engine and transmission to control shift points, torque converter lockup, and line pressure, ensuring optimal performance, fuel efficiency, and smooth operation.
Is this module truly ‘plug-and-play’?
Yes. Because we program the module to your vehicle’s specific VIN before shipping, it is ready for installation right out of the box. No further programming or trips to the dealership are required. Simply disconnect the battery, swap the modules, reconnect the battery, and clear any old codes with a basic scan tool.
Where is the TCM located on my 2006-2011 Impala?
On the 2006-2011 Chevrolet Impala, the transmission control module is typically located inside or attached to the lower air cleaner housing in the engine bay, making it relatively accessible for replacement.
Will this fit other GM vehicles besides the Impala?
Absolutely. While this listing is focused on the Impala, the T42 TCM was used in a wide range of GM vehicles, including the Tahoe, Silverado, LaCrosse, G6, and many others. Please verify the part number or use our vehicle fitment tool to ensure compatibility.
Do I need to send my old part back?
No. We do not require a core return for this 2006-2011 Impala transmission control module. You can dispose of or keep your old part at your convenience, simplifying the repair process for you.