Restore the Flawless Shifting Performance of Your Cadillac
Is your 2006-2011 Cadillac DTS suffering from harsh shifts, delayed gear engagement, or an illuminated Check Engine Light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every shift with precision. When it fails, the luxury ride you expect from a Cadillac is replaced by frustrating and potentially damaging performance issues. This VIN-programmed T42 TCM, part number 24234274, is the definitive solution to restore your vehicle’s smooth operation and reliability without an expensive trip to the dealership.
Over my 20+ years in automotive diagnostics, I’ve seen how a faulty TCM can mimic more severe mechanical transmission problems, leading to costly misdiagnoses. This module is a direct-fit replacement, pre-programmed to your vehicle’s specific VIN. This means it arrives ready for a true plug-and-play installation, ensuring perfect communication with your vehicle’s systems and eliminating common transmission-related diagnostic trouble codes (DTCs) right out of the box. Don’t let a faulty module compromise your driving experience; get the right part, programmed and ready to install.
Case Study: A Tricky Diagnosis
A customer brought in a 2008 Cadillac DTS with a complaint that was driving him crazy: intermittent, hard 1-2 shifts and occasional slipping when accelerating onto the highway. No consistent check engine light, just a generic P0700 (Transmission Control System Malfunction) stored in the memory. We checked the fluid, inspected the solenoids, and everything looked mechanically sound. The problem was elusive. After connecting a high-end scan tool, we monitored the TCM’s command signals and saw erratic voltage drops to the shift solenoids, but only under specific load conditions. This pointed directly to an internal failure in the original TCM. We installed one of our VIN-programmed modules, and the difference was immediate. The shifts were crisp and seamless, just like it had left the factory. It’s a perfect example of how this 2006-2011 DTS TCM can solve issues that seem much deeper.
Is Your Cadillac Exhibiting These Transmission Problems?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, it’s highly likely your module is the culprit:
- ✔ Harsh, banging, or erratic gear shifts.
- ✔ Vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on.
- ✔ Stored DTCs such as P0700, P0750, P0751, or other solenoid-related codes.
- ✔ Failure to upshift or downshift properly.
- ✔ A noticeable decrease in fuel economy.
- ✔ Complete loss of communication with the module (no gear indicator).
A Straightforward Guide to Installation
Installing your new 2006-2011 DTS TCM is a job most DIYers can handle in under 30 minutes with basic hand tools. This module is located in the engine compartment for easy access.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the vehicle’s adaptive memory.
- Locate the Module: On the Cadillac DTS, the TCM is typically found in the right-hand (passenger side) front of the engine compartment.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old TCM. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses. Ensure they click into place.
- Final Steps: Reconnect the battery terminal. While our programming handles the critical setup, it’s good practice to use a basic OBD2 scan tool to clear any lingering fault codes from the vehicle’s memory. Start the vehicle and enjoy your restored transmission performance!
Verified Vehicle Compatibility
While this is the correct module for the 2006-2011 Cadillac DTS, this versatile T42 TCM also fits a wide range of other General Motors vehicles. It is interchangeable with part numbers 24252114, 24234503, 24230461, and more. Below is a partial list of compatible models. Always verify fitment using your vehicle’s year, make, and model.
- Cadillac: DTS (2006-2011)
- Chevrolet: Silverado, Tahoe, Suburban, Impala, Cobalt, HHR, Express Van
- GMC: Sierra, Yukon, Savana Van, Envoy, Canyon
- Buick: LaCrosse, Lucerne, Allure, Rainier
- Pontiac: G6, Grand Prix
- Saturn: Vue, Aura, Ion
- Hummer: H3
- Saab: 9-7X
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) and the latest GM software onto the module before shipping. This ensures it communicates perfectly with your car’s engine computer and other systems, just like a new part from the dealer, but without the extra programming fees.
Do I need to send my old TCM back?
No, there is no core charge or need to return your old part. You can keep it or dispose of it at your convenience, making the process faster and hassle-free.
Will this fix a P0700 code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the root cause (like a faulty solenoid driver circuit inside the TCM), you should ensure there are no external wiring or sensor issues. In the vast majority of cases where the module itself has failed, this part is the correct fix.
Is this an OEM part?
This is a high-quality replacement part built to meet or exceed original equipment manufacturer (OEM) specifications for performance and durability. It is backed by our one-year warranty for your peace of mind.
How difficult is the installation for a 2006-2011 DTS TCM?
The installation is very straightforward. On the DTS, the module is easily accessible in the engine bay. With basic tools, most people can complete the swap in under half an hour. Just disconnect the battery, unbolt the old unit, and plug in the new one.