Restore Flawless Shifting to Your GMC Sierra
Are you battling frustrating transmission problems in your 2007-2013 GMC Sierra 1500? Harsh shifts, getting stuck in gear, or a persistent check engine light can sideline your truck and ruin your day. This genuine GM T42 Transmission Control Module (TCM) is the definitive solution. It arrives expertly programmed to your truck’s specific Vehicle Identification Number (VIN), making installation a straightforward, plug-and-play process. Get your workhorse back on the road quickly, shifting as smoothly as it did the day it left the factory, without an expensive trip to the dealership. This is the reliable fix you need to regain control and confidence in your vehicle’s performance.
Common Symptoms & Your Solution
A failing TCM can cause a host of issues that disrupt your truck’s drivability. If you’re experiencing any of the following, this module is designed to be the direct-fit remedy:
- Sudden, harsh, or erratic gear shifts
- Delayed engagement when shifting from Park to Drive or Reverse
- The vehicle entering “limp mode,” often stuck in 2nd or 3rd gear
- An illuminated Check Engine Light or Transmission Warning Light
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift correctly, leading to poor acceleration and fuel economy
Installing this pre-flashed programmed 2007-2013 Sierra 1500 transmission control module directly addresses the root cause of these electronic failures, restoring communication and precise control over your transmission’s functions.
Features & Benefits
- ✔ Ready to Install, No Dealer Visit: This module is pre-programmed using the latest GM software updates for your specific VIN. This eliminates the need for additional programming, saving you time and hundreds of dollars in dealership fees.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the smooth, responsive performance you expect from your truck.
- ✔ Built to Last: Engineered to meet strict OEM specifications, this module ensures dependable, long-term operation whether you’re hauling a heavy load or just running errands.
- ✔ Broad Compatibility: This T42 TCM is a direct replacement for a wide range of part numbers, including 24252114, 24234503, 24235754, and 24256960, making it a versatile solution for many GM trucks, vans, and SUVs.
- ✔ One-Year Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The End of Limp Mode Frustration
There’s nothing more frustrating than your powerful Sierra suddenly refusing to shift, stuck in a single gear. That’s “limp mode,” a protective measure triggered by a faulty TCM. It’s designed to prevent further damage, but it leaves you powerless. Many owners assume a costly mechanical repair is needed. However, in most cases, the fix is electronic. A programmed 2007-2013 Sierra 1500 transmission control module is the fastest, most effective way to solve this. Because it’s flashed to your VIN beforehand, it correctly communicates with your truck’s other computers from the moment you connect it, instantly restoring full functionality and getting you out of limp mode for good.
Frequently Asked Questions
Do I need to take my truck to a dealer after installing this part?
No. The primary benefit of this module is that it comes pre-programmed to your vehicle’s VIN. This allows you to install it yourself or have your local mechanic do it, completely avoiding the need for expensive dealership-only programming tools.
Is this TCM difficult to install?
For most 2007-2013 Sierra 1500 models, the TCM is located in the engine compartment next to the battery and is easily accessible. Installation typically takes under 30 minutes with basic hand tools. Simply disconnect the battery, unplug the old module’s electrical connectors, unbolt it, and install the new one in its place.
How do I know for sure if my TCM is the problem?
While symptoms like erratic shifting and limp mode are strong indicators, the best way to confirm is by using an OBD-II scanner. A general transmission code like P0700, often accompanied by specific solenoid or sensor codes, points directly to an electronic fault that this programmed 2007-2013 Sierra 1500 transmission control module is designed to fix.
What is a core charge?
There is no core charge for this part. You are not required to send your old, faulty module back to us, which simplifies the process and saves you the hassle of return shipping.
Will this part fit other GM vehicles?
Yes. While this listing is focused on the Sierra 1500, the T42 TCM was used in a vast number of 2006-2014 GM vehicles, including the Silverado, Tahoe, Yukon, Express, Savana, Impala, and many more. Please verify the part number or use our vehicle fitment tool to ensure compatibility.