Is your GM vehicle suffering from harsh shifting, getting stuck in gear, or throwing transmission codes?
Don’t let a faulty Transmission Control Module (TCM) sideline your truck, SUV, or sedan. A failing TCM can cause a cascade of frustrating issues, from unpredictable gear changes to the dreaded ‘limp mode’ that leaves you stranded. This pre-programmed GM T42 Transmission Control Module is the direct-fit, hassle-free solution to restore your transmission’s original performance and your confidence on the road. It’s engineered to solve the core electrical problems that plague these systems, getting you back in control quickly and affordably.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing TCM is the likely culprit. This module is designed to be the definitive fix for these common issues:
- Harsh, erratic, or delayed gear shifts
- Vehicle stuck in a single gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel economy and transmission overheating
By replacing your old unit with this professionally Programmed GM T42 Transmission Control Module, you are installing a reliable, long-term solution that communicates flawlessly with your vehicle’s powertrain, just as the factory intended.
Features & Benefits
- โ 100% Plug-and-Play Installation: This module arrives expertly pre-programmed to your vehicle’s specific VIN. This crucial step ensures perfect compatibility and means no expensive trips to the dealership for programmingโsimply install it and restore proper function.
- โ Restores Factory Shift Quality: Eliminates common issues like harsh shifting, gear slipping, and delayed engagement by precisely controlling solenoids and torque converter lockup based on the latest GM software for your vehicle.
- โ Clears Persistent Trouble Codes: Directly addresses the root cause of common Diagnostic Trouble Codes (DTCs) such as P0700 and solenoid circuit faults, helping you turn off that check engine light for good.
- โ Broad GM Vehicle Compatibility: Engineered as a perfect replacement for a wide range of models, including popular trucks like the Silverado and Sierra, SUVs like the Tahoe and Yukon, and cars like the Impala and LaCrosse. It’s fully interchangeable with service numbers 24252114, 24234503, 24230461, YNXS, and more.
- โ Guaranteed Performance: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
Why is VIN-specific programming so important? A generic, unprogrammed TCM is like a new computer with no operating system. It doesn’t know your vehicle’s specific engine, axle ratio, or tire size. Our VIN programming loads the exact factory software your vehicle needs to shift smoothly, manage fuel economy correctly, and communicate with other onboard computers. This step, which we handle for you before shipping, is the difference between a quick, successful repair and a frustrating, unresolved problem that could even damage your transmission. This Programmed GM T42 Transmission Control Module ensures the job is done right the first time.
Whether you’re a seasoned DIY mechanic or a first-timer, the installation is straightforward. Located in the engine bay, it can typically be swapped in under 30 minutes. By choosing this Programmed GM T42 Transmission Control Module, you’re not just buying a part; you’re investing in a reliable, permanent fix that brings back the smooth, predictable operation you depend on every day.
Frequently Asked Questions
Do I need to take this to a dealership for programming?
No. This module comes fully pre-programmed to your vehicle’s VIN number. It is ready for installation right out of the box, saving you time and the high cost of dealer programming.
Will this fix my ‘limp mode’ problem?
In most cases, yes. Limp mode is a protective measure triggered by the computer when it detects a major fault, often from the TCM. Replacing a faulty TCM with our correctly programmed unit is a very common and effective solution for resolving limp mode 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.
Is a core charge required for my old part?
No, there is no core charge for this part. You can keep your old module without the hassle of returning it.
What tools are needed for installation?
Installation typically requires only basic hand tools, such as a socket set and ratchet to remove the mounting bolts and disconnect the electrical connectors. Always disconnect the vehicle’s battery before starting the repair.