Is Your GM Truck, Van, or SUV Shifting Poorly?
Are you dealing with frustrating and unpredictable transmission behavior in your Chevrolet, GMC, Buick, or Cadillac? Symptoms like harsh, slamming shifts, delayed gear engagement, or the dreaded “limp mode” can sideline your vehicle, costing you time and money. These issues often point directly to a failing Transmission Control Module (TCM). This pre-programmed T42 TCM is the definitive, hassle-free solution to restore your vehicle’s smooth, reliable performance without an expensive trip to the dealership.
Common Symptoms & Your Solution
A faulty TCM can cause a cascade of problems that affect your vehicle’s drivability and safety. If you’re experiencing any of the following, it’s a strong indicator that your module needs replacement:
- Abrupt, harsh, or erratic gear changes
- The vehicle is stuck in a single gear (limp mode)
- Delayed engagement when shifting from Park to Drive or Reverse
- Check Engine Light or Transmission Warning Light is illuminated
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes are present
- Poor acceleration and decreased fuel economy
This VIN programmed T42 TCM is engineered to be the direct solution to these problems. It arrives ready for installation, taking the guesswork and additional programming costs out of your repair.
Features & Benefits
- ✔ Ready to Install, No Dealer Visit Needed: This module arrives pre-programmed to your vehicle’s specific VIN using the latest GM software. This ensures perfect communication with your vehicle’s systems for a true plug-and-play installation, eliminating the need for costly dealership programming.
- ✔ Restore Smooth, Dependable Shifting: By precisely managing shift points, line pressure, and torque converter lockup, this module restores your transmission’s original crisp performance and can help improve fuel efficiency.
- ✔ Built for Lasting Reliability: Constructed to meet or exceed original equipment standards for long-lasting performance, whether you rely on your vehicle for the job site or for daily driving.
- ✔ Guaranteed Fitment & Compatibility: A direct-fit replacement for a wide range of 2006-2014 GM vehicles, this module interchanges with numerous part numbers, including 24252114, 24234503, and 24242391, ensuring the right fit for your repair.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
From the Mechanic’s Bay: As a technician, I’ve seen countless vehicle owners get stuck between a rock and a hard place with a bad TCM. The part itself is one thing, but the real headache is the required programming. A non-programmed module is just a paperweight. You’d have to get the vehicle towed to a dealer, pay their diagnostic fees, and then pay for programming. Our VIN programmed T42 TCM completely bypasses that entire ordeal. It turns a multi-day, high-cost repair into a straightforward job you can often complete in your own driveway in under an hour. It’s the smartest, most efficient way to get your vehicle back in service.
Frequently Asked Questions
Why is VIN programming so important for this part?
The TCM must be programmed to your vehicle’s unique Vehicle Identification Number (VIN) to communicate correctly with the Engine Control Module (ECM) and other vehicle systems. Without correct programming, the transmission will not shift properly, and the vehicle may not even start. Our pre-programming service saves you this critical, and often expensive, step.
Is this a difficult part to install myself?
For most DIYers with basic tools, this is a very manageable installation. The TCM is typically located in the engine compartment and is accessible. The process involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. Most installations take less than 30 minutes.
Do I need to send my old TCM back (core charge)?
No, there is no core charge for this part. You can keep your old module without any extra hassle or fees.
How can I be sure my TCM is the actual problem?
While the symptoms listed are strong indicators of a bad TCM, it’s always best to have your vehicle scanned for diagnostic trouble codes (DTCs). Codes like P0700 (Transmission Control System Malfunction) or specific solenoid codes often confirm a TCM-related issue. This part is designed to resolve those common electronic failures.
Will this fix my specific transmission code?
This module is the correct solution for a wide range of electronic-based transmission codes related to module failure or solenoid control circuits. By replacing the faulty control unit, you are directly addressing the root cause of these specific electronic DTCs.