Is Your GM Truck or Van Plagued by Shifting Problems?
A faulty transmission control module can bring your work van, family SUV, or daily driver to a grinding halt, causing unpredictable shifting, poor performance, and dashboard warning lights. If your Chevrolet Express 3500, Silverado, or Tahoe is experiencing these issues, it’s likely time to replace the TCM. This Programmed T42 Transmission Control Module is the definitive, hassle-free solution to get your vehicle back in service quickly and reliably.
Common Symptoms & Your Solution
A failing T42 TCM will make its presence known through a variety of frustrating symptoms. You don’t have to be a master technician to notice something is wrong. Look out for:
- Harsh, erratic, or delayed gear shifts
- The vehicle being stuck in “limp mode” (usually 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 codes
- A complete failure to upshift or downshift
- Noticeably worse fuel economy
This module is engineered to be the direct solution to these problems. By replacing your old, malfunctioning unit with our pre-programmed TCM, you restore the critical communication link between your engine and transmission, ensuring precise, smooth operation just like it was designed to perform.
Features & Benefits
- âś” Ready to Install, No Dealer Needed: We pre-program this module to your vehicle’s specific VIN using the latest GM software updates. This eliminates the need for expensive dealership programming, making it a true plug-and-play installation right out of the box.
- âś” Restore Smooth Shifting: This module precisely controls torque converter lockup, shift solenoids, and line pressure, restoring the crisp, reliable shifting you depend on for hauling, towing, or daily driving.
- âś” Built for Durability: Constructed to meet strict OEM standards for performance and longevity, this module is designed to withstand the demanding conditions inside the engine bay.
- âś” Purchase with Confidence: This unit is backed by our one-year replacement warranty.
- âś” Guaranteed Fitment: As a direct replacement for service numbers 24252114, 24234503, 24234274, and more, this Programmed T42 Transmission Control Module ensures perfect compatibility with a wide range of GM vehicles.
Expert Insight: The Power of Pre-Programming
In my 20+ years of diagnostics, one of the biggest headaches for both DIYers and professional shops has been module replacement. In the past, you’d install a blank module, only to have a non-running vehicle that needed to be towed to a dealership for expensive programming. Our VIN programming service completely eliminates that step. We take your vehicle’s unique information and flash it directly to the module before it ships. This means when it arrives, it’s already configured to communicate perfectly with your vehicle’s other computers, saving you hundreds of dollars and days of downtime. It turns a complex electronic repair into a straightforward mechanical swap.
Whether you’re getting a fleet of Savana vans back on their routes or ensuring your family’s Yukon is safe and reliable, this Programmed T42 Transmission Control Module is the smartest, most efficient way to solve your transmission woes. Don’t let a small electronic part cause major mechanical headaches—fix it right the first time.
Frequently Asked Questions
Do I need to have a dealership program this module?
No. The main benefit of this part is that it arrives pre-programmed to your vehicle’s specific VIN. This allows for a simple plug-and-play installation without any need for additional, costly programming.
How difficult is the installation?
For most models, installation is straightforward and can be completed in under 30 minutes with basic hand tools. The TCM is typically located in the engine compartment, often next to the battery, on a strut tower, or under the air cleaner box. Always disconnect the battery before starting the repair.
Will this fix my P0700 trouble code?
A P0700 code is a general transmission fault request. While a failing TCM is a very common cause, this code indicates that another, more specific transmission code is stored. Our module is designed to resolve the internal electronic faults that cause these codes, but you should always perform a full scan to ensure there are no other mechanical issues.
How do I provide my VIN for programming?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. Please double-check it for accuracy to ensure perfect programming.
What happens if I don’t replace a failing TCM?
Ignoring the symptoms of a failing TCM can lead to more severe problems, including internal transmission damage from harsh shifting and improper fluid pressure. This can turn a relatively simple electronic repair into a major mechanical overhaul.
Is there a core charge for my old part?
No, there is no core charge required for this module. You can keep or dispose of your old part without the hassle of returning it.