Restore Peak Performance to Your Cadillac DTS Transmission
If you’re dealing with the frustration of a Cadillac that shifts harshly, gets stuck in gear, or throws transmission-related error codes, you’re not alone. The Transmission Control Module (TCM) is the electronic brain of your automatic transmission, and when it fails, it can cause a host of drivability problems. This replacement T42 TCM, part number YNXS, is the definitive solution for your 2006-2011 Cadillac DTS. It arrives expertly programmed to your vehicle’s VIN, ensuring a seamless, plug-and-play installation that gets you back on the road without a costly trip to the dealership.
From the Diagnostic Bay
I remember a customer bringing in a 2009 Cadillac DTS with a really tricky complaint. He said the car would occasionally ‘slam’ into gear, but only after it was fully warmed up. There were no consistent check engine lights, just a stored generic P0700 (Transmission Control System Malfunction) code. We checked the fluid, inspected the solenoids, and couldn’t find a mechanical fault. After monitoring live data, we noticed the TCM would momentarily drop communication. The root cause wasn’t a bad solenoid or a failing transmission—it was the TCM itself suffering from internal heat-related failure. Installing a VIN-programmed module like this one resolved the issue completely, saving the customer from what could have been a much more expensive and unnecessary transmission rebuild.
Is Your Cadillac DTS Exhibiting These Transmission Problems?
A failing TCM can manifest in several ways. As a technician with over two decades of experience, I’ve seen these symptoms countless times. If your vehicle is showing any of these signs, a faulty TCM is the likely culprit.
- ✔ Harsh, erratic, or delayed gear shifts that disrupt the smooth ride you expect.
- ✔ The vehicle enters ‘limp mode,’ often getting stuck in 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750-series solenoid codes, or communication errors.
- ✔ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔ Complete failure to shift gears, either up or down.
A Straightforward Installation Guide for Your DTS
One of the best features of this part is its ease of installation. For the 2006-2011 Cadillac DTS, the process is simple and can be done in your own garage with basic hand tools in under 30 minutes. No need for special diagnostic equipment to program the module.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the TCM: On your Cadillac DTS, the Transmission Control Module is typically found in the engine compartment on the right-hand (passenger) side, 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. Ensure they click into place.
- Reconnect and Verify: Reconnect the battery terminal. Start the vehicle and allow it to idle for a few minutes. If you have a basic scan tool, it’s good practice to clear any lingering fault codes from the system.
Verified Fitment for Your Vehicle
This module is a direct-fit replacement for the 2006-2011 Cadillac DTS. It is also compatible with a wide range of other General Motors vehicles that use the T42 TCM, including models from Chevrolet, GMC, Buick, Pontiac, and Saturn. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24242391, and YNXS. By providing your VIN at checkout, we ensure this part is programmed specifically for your vehicle’s configuration, guaranteeing proper function.
Do I need to take this part to a dealer for programming?
Do I need to take this part to a dealer for programming?
No. This is the biggest benefit of our service. We program the 2006-2011 DTS TCM to your car’s specific Vehicle Identification Number (VIN) before we ship it. This makes the installation plug-and-play, saving you time and the high cost of dealership programming.
Where is the TCM located on my 2008 Cadillac DTS?
On the 2006-2011 Cadillac DTS, the Transmission Control Module is located in the engine bay, on the RH (passenger) side, in the front engine compartment. Always confirm the location before beginning work.
Is this a new or used part?
This is a high-quality, OEM-standard replacement part, inspected and programmed to ensure reliability and performance. It is backed by our one-year warranty for your peace of mind.
Will this fix a P0700 code?
A P0700 code is a generic trouble code indicating the TCM has detected a fault. While this module often resolves the root cause (like an internal TCM failure), it’s important to ensure there are no other issues, such as faulty wiring or solenoids. In many cases I’ve diagnosed, a faulty TCM was the primary cause.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep your old module without the hassle of returning it.