Restore Flawless Shifting to Your GM Vehicle
Is your Chevrolet Trailblazer, Silverado, or GMC Sierra suffering from frustrating and unpredictable transmission behavior? Harsh shifts, getting stuck in gear, or a persistent check engine light can ruin your driving experience and leave you worried about a costly repair. Put those concerns to rest with this professionally VIN-programmed T42 Transmission Control Module (TCM). It’s the direct, reliable solution to restore the crisp, smooth performance your vehicle had when it was new, without the expense and hassle of a dealership visit.
Common Symptoms & Your Solution
A failing TCM can manifest in numerous ways, turning your dependable daily driver into a source of stress. If you’re experiencing any of the following, this module is the definitive fix:
- Abrupt, harsh, or erratic gear changes
- Delayed engagement when shifting from Park to Drive or Reverse
- The vehicle is stuck in “limp mode” (usually 2nd or 3rd gear)
- Active Check Engine Light or Transmission Warning Light
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750-P0753, or other solenoid-related faults
- Failure to upshift or downshift, leading to poor acceleration and fuel economy
This replacement 24234274 T42 TCM is engineered to resolve these issues at their source, re-establishing precise communication between your engine and transmission for optimal performance.
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This critical step eliminates the need for expensive dealership programming, saving you time and money. Simply install it and drive.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the smooth, responsive feel you expect from your transmission.
- ✔ Lasting Reliability: Built to meet or exceed stringent OEM specifications, this module is designed for durability, ensuring it can handle everything from daily commutes in your Impala to heavy-duty work in your Savana van.
- ✔ Clear Communication: Resolves common communication DTCs and ensures all transmission solenoids and sensors are operating in perfect harmony, preventing future shifting problems.
- ✔ Guaranteed Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight from the Garage
“Over 20 years, I’ve seen countless drivers replace solenoids or even entire transmissions, only to find the root cause was a faulty TCM. The logic inside these modules degrades over time from heat and vibration. What makes this particular 24234274 T42 TCM a game-changer for DIYers and independent shops is the VIN programming. It takes the guesswork and the expensive dealership tools out of the equation. You’re not just buying a part; you’re buying a complete, ready-to-install solution that gets the job done right the first time.”
Frequently Asked Questions
Do I need to take my vehicle to a dealer for programming?
Absolutely not. We handle the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for a plug-and-play installation.
Where is the TCM located on my vehicle?
Location varies by model. Common spots include the engine compartment on the driver’s or passenger’s side, next to the battery, or under the air cleaner box. The included fitment data provides specific locations for many models.
Is this a difficult part to install?
For most individuals with basic mechanical skills, installation is straightforward and typically takes less than 30 minutes. The primary steps are disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. No specialized tools are required.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request, meaning the TCM has detected a problem and asked the main computer to turn on the check engine light. While this 24234274 T42 TCM often resolves the underlying cause of a P0700, it’s always best to have the vehicle scanned for more specific transmission codes (e.g., P0751, P0756) to confirm the diagnosis.
Is there a core charge for my old part?
No, there is no core charge. You can keep or recycle your old part without the hassle of returning it, making the process simpler and more convenient for you.