Is Your GM Vehicle’s Transmission Acting Up?
Are you experiencing frustrating and unpredictable transmission problems in your 2006-2014 GMC Savana 1500, Chevrolet Silverado, or other GM vehicle? Harsh shifts, delayed gear engagement, or getting stuck in ‘limp mode’ can turn a reliable workhorse into a source of daily stress. Don’t let a faulty TCM sideline your vehicle. This fully VIN-programmed T42 transmission control module is the definitive, hassle-free solution to restore the smooth, dependable performance you need.
Common Symptoms & Your Solution
A failing Transmission Control Module (TCM) can manifest in several ways, often triggering your check engine light. If you’re noticing any of the following, it’s a strong indicator that your TCM needs replacement:
- Harsh, erratic, or delayed shifting
- The vehicle is stuck in a single gear (limp mode)
- Transmission or Check Engine warning lights are on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes
- Failure to upshift or downshift correctly
- Noticeably poor fuel economy
- Intermittent loss of communication with the transmission
This programmed T42 transmission control module is engineered to resolve these issues directly. By replacing your old, malfunctioning unit, you restore the critical brain of your transmission, ensuring precise shifting, proper torque converter operation, and clear communication with your vehicle’s engine computer.
Features & Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This eliminates the need for expensive dealership trips or specialized programming tools, saving you time and money.
- ✔ Restored Drivability: Experience smooth, crisp, and predictable gear changes. Our programming ensures the transmission operates according to precise factory specifications for optimal performance and fuel efficiency.
- ✔ Solve Annoying Warning Lights: Correctly addresses the root cause of many transmission-related DTCs, allowing you to clear those persistent check engine lights for good.
- ✔ OEM-Quality Construction: Built to meet or exceed original equipment standards, ensuring long-lasting durability and reliable operation under all driving conditions, from daily commuting to heavy-duty work.
- ✔ Broad Compatibility: A direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, 4L70E, and 4L80E. It interchanges with multiple part numbers including 24252114, 24234503, and 24242391.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN-Specific Programming is Non-Negotiable
“In my 20 years of diagnostics, I’ve seen countless drivers try to save a few dollars with a generic, non-programmed module. It almost never ends well. Your vehicle’s computers—the ECM, TCM, BCM—are in constant communication. A generic module speaks a different dialect, leading to persistent shifting issues, incorrect data, and even new error codes. A properly programmed T42 transmission control module, like this one, is loaded with your vehicle’s exact DNA. It ensures every signal for shift points, line pressure, and torque converter lockup is perfectly synchronized, restoring performance and preventing future headaches. It’s the difference between just replacing a part and truly solving the problem.”
Simple Installation Process
Installation is straightforward for a DIYer with basic tools. The module is typically located in the engine compartment (e.g., on the RH or LH side, next to the battery, or under the air cleaner box, depending on your specific model). Always disconnect the vehicle’s battery before starting. Once the new module is installed and the battery is reconnected, use a standard OBD2 scan tool to clear any stored diagnostic trouble codes. Best of all, there is no core charge—you can keep your old part without any extra hassle.
Frequently Asked Questions
Do I need to take this module to a dealer for programming?
No. This is the primary benefit of our service. We pre-program the module to the VIN you provide during checkout. It will arrive ready to install, requiring no further programming.
Is this a new or used part?
This is an OEM-quality replacement part, inspected and programmed to ensure it meets strict performance standards for reliability and longevity.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating that the TCM has detected a problem. While this programmed T42 transmission control module often resolves the underlying issue causing the P0700, it’s always best to diagnose any other specific codes that are present to confirm the TCM is the root cause.
What tools are required for installation?
You will typically only need basic hand tools, such as a socket set, to remove and replace the module. We also recommend having an OBD2 scan tool on hand to clear any fault codes after the installation is complete.
Is there a core charge for my old part?
No, there is no core charge. You are not required to send your old transmission control module back to us, saving you time and return shipping costs.