Restore Flawless Shifting to Your Cadillac DTS
If your 2006-2011 Cadillac DTS is suffering from harsh shifts, getting stuck in gear, or throwing transmission codes, the culprit is often a failing Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty TCM can sideline an otherwise perfect vehicle. This T42 TCM, part number 24235340, is the definitive solution, arriving expertly programmed to your vehicle’s VIN for a true plug-and-play repair.
The TCM is the electronic brain of your automatic transmission. It processes data from various sensors to command precise gear changes and torque converter lockup. Over time, heat cycles and engine vibration can degrade internal components, leading to the frustrating and unpredictable symptoms you’re likely experiencing. Replacing it with our pre-programmed module restores the crisp, responsive shifting your Cadillac was designed to deliver, without a costly trip to the dealership for programming.
Case Study: The Ghost in the Transmission
A customer brought in a 2008 Cadillac DTS with a complaint that stumped two other shops. The car would occasionally slam into gear, but only after it was fully warmed up. There were no consistent codes, just a general P0700 (Transmission Control System Malfunction) that would pop up intermittently. We monitored sensor data live and saw erratic commands coming from the TCM once transmission fluid temps hit 180°F. The internal processor was failing under heat. We installed a VIN-programmed T42 module, and the problem was solved instantly. This isn’t just a part; it’s a permanent fix for these exact ghost-in-the-machine issues.
Is Your Cadillac Showing These Symptoms?
- ✔ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔ The vehicle is stuck in “limp mode,” often refusing to shift out of 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated with codes like P0700, P0753, P0758, or other solenoid-related faults.
- ✔ Complete failure to upshift or downshift, leading to poor acceleration and high RPMs.
- ✔ A noticeable drop in fuel economy due to inefficient transmission operation.
- ✔ Intermittent communication loss with the transmission module.
A Straightforward Guide to Installation
This is a job most DIYers can handle in their driveway in under 30 minutes. For the 2006-2011 DTS Transmission Module, the location is consistent and accessible.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and reset the system.
- Locate the Module: On the Cadillac DTS, the TCM is typically found in the engine bay on the right-hand (passenger) side, near the front.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. 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. You should hear a click as they lock in.
- Final Steps: Reconnect the battery terminal. While our programming handles the critical setup, 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 T42 TCM is a direct fit for a wide range of General Motors vehicles. While this page focuses on the Cadillac DTS, please confirm your model and location below. It is a compatible replacement for part numbers 24252114, 24234503, 24235340, and more.
- ALLURE 06-09 Transmission; (lower air cleaner housing)
- AVALANCHE 1500 07-08 Transmission; (next to battery)
- CANYON 08-12 Transmission; (RH rear engine compartment)
- COBALT 06-10 Transmission; (LH strut tower)
- COLORADO 08-12 Transmission; (RH rear engine compartment)
- DTS 06-11 Transmission; (RH front engine compartment)
- ENVOY 06-09 Transmission; (LH engine compartment)
- EXPRESS VANS 06-14 Transmission; (RH engine compartment)
- G5 / G6 06-10 Transmission; (LH strut tower)
- GRAND PRIX 06-08 Transmission; (lower air cleaner housing)
- HHR 06-11 Transmission; (LH engine compartment)
- HUMMER H3 08-10 Transmission; (RH rear engine compartment)
- IMPALA 06-11 Transmission; (lower air cleaner housing)
- LACROSSE 06-09 Transmission; (lower air cleaner housing)
- LUCERNE 06-11 Transmission; (LH engine compartment)
- MALIBU 06-10 Transmission; (LH frame rail)
- MONTE CARLO 06-07 Transmission; (lower air cleaner housing)
- MONTANA 06-09 Transmission; (LH strut tower)
- RAINIER 06-07 Transmission
- SAAB 9-7X 06-09 Transmission; (LH engine compartment)
- SAVANA VANS 06-14 Transmission; (RH engine compartment)
- SIERRA PICKUPS 07-13 Transmission; 4-speed auto (next to battery)
- SILVERADO PICKUPS 07-13 Transmission; 4-speed auto (next to battery)
- SUBURBAN 1500 07-08 Transmission; (next to battery)
- TAHOE 07-09 Transmission; (next to battery)
- TRAILBLAZER 06-09 Transmission; (LH engine compartment)
- UPLANDER 06-09 Transmission; (LH strut tower)
- VUE 07-10 Transmission; 2.4L
- YUKON / YUKON XL 07-09 Transmission; (next to battery)
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean for my installation?
It means we load your car’s unique Vehicle Identification Number (VIN) and the latest GM software onto the module before we ship it. This ensures it communicates perfectly with your vehicle’s other computers (like the ECM) right out of the box. You can skip the expensive and time-consuming programming appointment at a dealership.
Do I need to send my old, broken TCM back?
No. We do not require a core return. You can keep your old part, saving you the hassle and cost of shipping it back.
Will this part fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases, replacing a faulty TCM will resolve the underlying issue causing the P0700 code, especially if it’s accompanied by specific solenoid or shifting error codes.
Where is the TCM on my 2007 Cadillac DTS?
On the 2006-2011 Cadillac DTS, you will find the Transmission Control Module located in the engine compartment on the passenger side (RH side), typically mounted near the front of the vehicle for easy access.
Is any special software or re-learning procedure needed after I install this?
No. Because the module is pre-programmed to your VIN, no further software installation is required. The vehicle’s computers will recognize and adapt to the new module automatically after a few drive cycles. Just install it and go.