Restore the Luxury Ride of Your Cadillac DTS
Is your 2006-2011 Cadillac DTS suffering from harsh shifting, delayed gear engagement, or getting stuck in limp mode? These are classic symptoms of a failing Transmission Control Module (TCM). As the electronic brain of your automatic transmission, the TCM is responsible for every gear change. When it fails, the smooth, responsive performance you expect from your Cadillac disappears. This VIN-programmed T42 TCM, part number 24240400, is the direct-fit solution to restore your vehicle’s drivability and prevent further transmission damage.
Case Study: A Tricky Diagnosis
I recently had a 2008 Cadillac DTS in my bay with a frustrating, intermittent problem. The customer complained of random, hard 1-2 shifts and occasional failure to downshift when coming to a stop. No specific solenoid codes were stored, only a general P0700 (Transmission Control System Malfunction). We checked fluid levels and wiring, finding nothing obvious. In these cases, after ruling out mechanical faults, the culprit is almost always the TCM itself suffering from internal circuit board failure due to heat cycles. Replacing it with this pre-programmed module resolved all issues instantly, saving the customer from an expensive and unnecessary transmission teardown.
Is Your Cadillac Showing These Transmission Warning Signs?
A faulty TCM can manifest in several ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs replacement:
- ✔ Unpredictable, harsh, or jerky gear shifts.
- ✔ The vehicle is stuck in a single gear (limp mode), often 2nd or 3rd.
- ✔ Check Engine Light is on with transmission-related DTCs like P0700, P0750, or other solenoid codes.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ A noticeable decrease in fuel economy.
- ✔ The transmission seems to slip out of gear while driving.
Your Direct Solution: The 2006-2011 DTS Transmission Control Module
This isn’t just a replacement part; it’s a complete solution. We program the module to your vehicle’s specific VIN before shipping. This critical step ensures that the TCM has the correct software and calibrations for your DTS, eliminating the need for expensive dealership programming. It arrives ready to install, making it a true plug-and-play fix for both professional technicians and DIY-savvy owners.
A Straightforward 30-Minute Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and reset the system.
- ✔ Locate the Module: On your 2006-2011 Cadillac DTS, the TCM is located in the engine bay, on the right-hand (passenger) side front.
- ✔ 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. Securely reconnect the electrical connectors, ensuring they click into place.
- ✔ Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s good practice to use a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory. Start the car and enjoy your smooth-shifting transmission!
Verified Vehicle Compatibility
This T42 TCM is the correct replacement for the 2006-2011 Cadillac DTS. It is also compatible with a wide range of other GM vehicles that use the 4L60E, 4L65E, and similar 4-speed automatic transmissions. It directly interchanges with part numbers including 24252114, 24234503, 24230461, 24239926, and 24240400.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We pre-program the module to your car’s VIN before it ships. This makes it a plug-and-play installation, saving you time and the high cost of dealership programming.
Is this a difficult part to install myself?
Not at all. For most DIYers with basic hand tools, this is a straightforward job that takes less than 30 minutes. The module is easily accessible in the engine compartment of your DTS.
What is a core charge?
A core charge is a deposit you pay until you return your old part. We do not have a core charge on this item, so you can keep your old module without any hassle.
Will this fix a P0700 code on my Cadillac?
Yes. The P0700 code is a general fault code indicating the TCM has detected a problem. If the TCM itself is the source of the fault, replacing it with this new module will resolve the issue and allow the code to be cleared.