Is Your Cadillac DTS Shifting Erratically?
There’s nothing more frustrating than a luxury car that doesn’t drive smoothly. If your 2006-2011 Cadillac DTS is experiencing harsh shifting, delayed gear engagement, or has the check engine light illuminated with transmission codes, you’re likely dealing with a failed Transmission Control Module (TCM). This critical component is the brain of your automatic transmission, and when it fails, it can make your vehicle feel unreliable and unsafe. Don’t let a faulty module sideline your car. This OEM-quality T42 TCM, part number 24230461, is the definitive solution to restore the precise, smooth performance you expect from your vehicle.
From the Diagnostic Bay
A customer brought in their 2008 Cadillac DTS, complaining it felt like it was getting ‘stuck’ in gear and would sometimes slam into drive. The dashboard was lit up with a check engine light and a transmission warning. A quick scan revealed a P0700 code (Transmission Control System Malfunction) and several solenoid circuit codes. We knew immediately the TCM was the likely culprit. Instead of a costly trip to the dealer for a new module and programming, we installed one of our pre-programmed T42 modules. After a 20-minute installation and clearing the codes, the car shifted perfectly. The customer was back on the road the same day, having saved significant time and money.
Symptoms of a Failing GM T42 TCM
- ✔ Unpredictable or harsh gear shifts that slam or jerk the vehicle.
- ✔ The transmission gets stuck in a single gear, often referred to as ‘limp mode’.
- ✔ Illumination of the Check Engine Light or Transmission Warning Light on your dash.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔ Complete failure to shift gears, leaving you stranded.
Why Our Programmed Cadillac DTS Transmission Module is the Superior Solution
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The biggest hurdle in replacing a modern TCM is the need for expensive, dealer-specific programming. We eliminate that step entirely. By providing us with your vehicle’s VIN during checkout, we program the module with the latest GM software specific to your car. This ensures that once installed, it communicates flawlessly with your engine computer and other systems, restoring original factory performance right out of the box.
Built to strict OEM specifications, this T42 module directly replaces a wide range of service numbers, including 24252114, 24234503, and 24242391. It’s the ideal fix for not only the Cadillac DTS but also a vast array of GM vehicles like the Chevrolet Silverado, GMC Sierra, Buick Lucerne, and Hummer H3 equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E.
Simple, Straightforward Installation
Designed for both professional technicians and capable DIYers, installation is a breeze. The TCM is typically located in the engine compartment—often on the RH side, near the battery, or under the air cleaner box. The process is simple:
- Disconnect the Battery: Always disconnect the negative battery terminal before working on vehicle electronics.
- Locate and Remove Old Module: Unplug the electrical connectors and unbolt the old TCM.
- Install New Module: Bolt the new, pre-programmed module in place and securely reconnect the wiring harnesses.
- Reconnect Battery & Clear Codes: Reconnect the battery. While the new module is plug-and-play, it’s best practice to use a standard OBD2 scan tool to clear any stored transmission codes.
With no core charge, you don’t have to worry about the cost and hassle of sending your old part back. Get your vehicle back to peak operating condition with a reliable, fully programmed transmission control module.
Frequently Asked Questions
What does ‘VIN Programmed’ mean?
It means we load the module with your vehicle’s specific factory software using your 17-digit Vehicle Identification Number (VIN). This makes the part plug-and-play, allowing it to work correctly with your engine and transmission without requiring a trip to the dealership for expensive programming.
Will this fit vehicles other than the Cadillac DTS?
Yes, absolutely. This T42 TCM is compatible with a wide range of 2006-2014 GM cars, trucks, and SUVs, including models from Chevrolet, GMC, Buick, Pontiac, Saturn, and Hummer. Please check the detailed fitment list on this page to confirm compatibility with your specific vehicle.
Do I need any special tools for installation?
No special tools are required. Basic hand tools like a socket set and ratchet are typically all that’s needed. The most important post-installation step is clearing any old trouble codes with a standard OBD2 scanner.
Is there a core charge for my old module?
No, we do not require you to return your old part. There is no core charge associated with this purchase, saving you time and money.
What if I still have problems after installation?
While this module solves the most common transmission electronic failures, shifting problems can also be caused by internal mechanical issues. If problems persist, it is crucial to have the transmission fluid level and condition checked, and to have a professional mechanic inspect the transmission’s internal components.