If the smooth, luxurious ride of your 2006-2011 Cadillac DTS is being ruined by harsh, unpredictable shifting or a persistent check engine light, you’re likely dealing with a failing Transmission Control Module (TCM). This critical component is the brain of your automatic transmission, and when it malfunctions, it can cause a host of frustrating and potentially damaging issues. This T42 Transmission Control Module, part number 24243901, is the definitive, reliable solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
A Technician’s Notebook: The Ghost in the Machine
I had a 2008 Cadillac DTS in my bay last month with a problem that was driving the owner crazy. It would shift perfectly for days, then suddenly slam into gear or refuse to shift out of 2nd. No codes would stick around long enough to make a solid diagnosis. After checking the wiring harness and solenoids, which all tested fine, experience pointed me to the TCM. These T42 modules can develop internal micro-fractures from heat cycles, causing intermittent communication failures. We replaced it with a VIN-programmed unit like this one, and the car has been shifting like it just rolled off the factory floor ever since. It’s a common failure point I’ve seen on dozens of these GM platforms.
Is Your Cadillac DTS Showing These Transmission Warning Signs?
A faulty TCM doesn’t always mean a complete transmission failure. Often, it presents as a series of electrical and performance issues. If you’re experiencing any of the following, a failing 2006-2011 DTS Transmission Module is the most likely culprit:
- âś” Abrupt, harsh, or jerky gear changes.
- âś” The vehicle gets stuck in a single gear (often called “limp mode”).
- âś” Delayed engagement when shifting from Park to Drive or Reverse.
- âś” An illuminated Check Engine Light or Transmission Warning Light, often with codes like P0700 (Transmission Control System Malfunction) or P0750-series solenoid circuit faults.
- âś” Poor acceleration and a noticeable drop in fuel economy.
- âś” Complete loss of communication with the transmission, preventing it from shifting at all.
The Plug-and-Play Solution: Features & Benefits
This isn’t just a replacement part; it’s a complete, hassle-free fix designed to restore your vehicle’s performance and reliability. By addressing the core electronic failure, you can avoid a costly and unnecessary transmission rebuild.
- âś” 100% VIN Programmed: We flash the module with your vehicle’s VIN and the latest GM software before it ships. This eliminates the need for expensive dealership programming, making it a direct, out-of-the-box solution.
- âś” Restore Smooth Shifting: By precisely controlling shift points, line pressure, and torque converter lockup, this module brings back the seamless performance you expect from a Cadillac.
- âś” Built to OEM Standards: Engineered for durability and longevity, this module is built to meet or exceed original equipment specifications, ensuring reliable operation for years to come.
- âś” No Core Charge: Keep your old part. We don’t require a core return, saving you the time, hassle, and expense of shipping your old module back.
A Straightforward Guide to Installation
For the 2006-2011 Cadillac DTS, installing your new TCM is a simple process that can be done in your driveway in under 30 minutes with basic hand tools. This will get your car back on the road quickly and save you hundreds in labor costs.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On the Cadillac DTS, the TCM is located in the engine compartment on the right-hand (passenger) side, often near the front.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. 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 connectors.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s good practice to use a basic OBD2 scanner to clear any stored fault codes from the vehicle’s memory.
Verified Vehicle Compatibility
This module is a guaranteed fit for the following vehicles. Please ensure your vehicle is on the list before ordering.
- Cadillac DTS: 2006, 2007, 2008, 2009, 2010, 2011 (Located in RH front engine compartment)
This part, also known as a T42 TCM, is interchangeable with part numbers 24243901, 24252114, 24234503, and others. It also fits a wide range of other GM vehicles, including the Chevrolet Impala, GMC Sierra, Buick Lucerne, and more. Providing your VIN at checkout ensures perfect compatibility.
What exactly does a VIN-programmed TCM do?
What exactly does a VIN-programmed TCM do?
VIN programming means we load your car’s specific Vehicle Identification Number and corresponding factory software onto the module before shipping. This makes the module recognize your car’s unique configuration (engine, transmission, options) instantly, allowing it to work perfectly right out of the box without any additional setup.
Do I need to take my car to a dealer after installing this part?
No. Because this module is pre-programmed to your VIN, you completely skip the need for a dealership visit for programming, which can often cost $150 or more. This is a true plug-and-play repair.
Where is the TCM located on a 2006-2011 Cadillac DTS?
On the 2006-2011 Cadillac DTS, the Transmission Control Module is found in the engine bay, specifically in the right-hand (passenger side) front engine compartment.
Will this 2006-2011 DTS Transmission Module fix a P0700 trouble code?
Yes, in many cases. The P0700 code is a general fault code indicating the TCM has detected a problem. If the TCM itself is the source of the failure, replacing it with this new module will resolve the code and the underlying issue.
Is there a core charge for this part?
No, there is absolutely no core charge. You are not required to send your old, faulty module back to us, which simplifies the process for you.