If the once-seamless gear changes in your 2006-2011 Cadillac DTS have become harsh, unpredictable, or have left you stranded in limp mode, the culprit is very likely a failing Transmission Control Module (TCM). As the electronic brain of your automatic transmission, the T42 TCM is responsible for every shift, and when it malfunctions, it can cripple your vehicle’s performance and drivability. This is a direct-fit replacement, part number 24252114, that arrives expertly programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits and ensuring a perfect, plug-and-play solution.
Over my two decades in automotive diagnostics, I’ve seen countless GM vehicles, from luxury sedans like the DTS to workhorse trucks, suffer from these exact issues. The problem often stems from internal circuit board failures caused by years of heat cycles and engine vibration. This isn’t just an inconvenience; a faulty TCM can lead to poor fuel economy, place excessive strain on mechanical transmission components, and create unsafe driving conditions. Our replacement 2006-2011 DTS TCM is built to meet or exceed original equipment standards, providing a dependable and lasting fix.
Case Study: A Tricky Diagnosis
A customer brought in their ’08 Cadillac DTS with a complaint that was driving them crazy: intermittent, bone-jarring shifts, but only after the car was fully warmed up. They’d already replaced a solenoid pack with no luck. A scan showed a generic P0700 code and an intermittent solenoid circuit code. Instead of just throwing more parts at it, we monitored the live data. We saw the TCM command a shift, but the signal would momentarily drop out. This pointed directly to a heat-related failure within the TCM itself. Swapping in a VIN-programmed module like this one solved the problem instantly. The customer was back on the road with a smooth-shifting car in under an hour, without a costly trip to the dealer.
Is Your Cadillac DTS Showing These Transmission Warning Signs?
A failing TCM will give you clear signals. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Erratic or brutally harsh gear shifts.
- ✔ The vehicle is stuck in a single gear (often called “limp mode”).
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid errors), or other communication codes.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ A noticeable drop in fuel efficiency.
Your 30-Minute Path to a Smooth Ride
One of the biggest benefits of this module is its simple installation. You don’t need a professional lift or specialized tools. For the Cadillac DTS, the process is straightforward.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the TCM: On the 2006-2011 Cadillac DTS, the TCM is found in the engine compartment, typically on the right-hand (passenger) side.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note the tab locations to avoid breaking them. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new, VIN-programmed 2006-2011 DTS TCM in place and securely fasten it. Reconnect the electrical harnesses until they click.
- Final Steps: Reconnect the battery terminal. While our programming handles the critical setup, it’s always good practice to use a basic OBD2 scanner to clear any stored fault codes from the vehicle’s memory. Start the car and enjoy your restored ride!
Verified Fitment for Your General Motors Vehicle
While this is the perfect solution for your Cadillac DTS, this T42 TCM is also compatible with a wide range of other GM vehicles. Please verify your model and year below. This module is a direct replacement for part numbers including 24242391, 24234503, 24252114, and others.
- Cadillac: DTS (2006-2011) – RH front engine compartment
- Buick: Allure (2006-2009), LaCrosse (2006-2009), Lucerne (2006-2011), Rainier (2006-2007), Rendezvous (2006-2007)
- Chevrolet: Avalanche 1500 (2007-2008), Cobalt (2006-2010), Colorado (2008-2012), Express Vans (2006-2014), HHR (2006-2011), Impala (2006-2011), Malibu (2006-2010), Monte Carlo (2006-2007), Silverado Pickups (2007-2013), SSR (2005-2006), Suburban 1500 (2007-2008), Tahoe (2007-2009), Trailblazer (2006-2009)
- GMC: Canyon (2008-2012), Envoy (2006-2009), Savana Vans (2006-2014), Sierra Pickups (2007-2013), Yukon & Yukon XL (2007-2009)
- Hummer: H3 (2008-2010)
- Pontiac: G5 (2007-2010), G6 (2006-2010), Grand Prix (2006-2008), Pursuit (2006)
- Saab: 9-7X (2006-2009)
- Saturn: Aura (2007-2009), Ion (2006-2007), Vue (2007-2010)
Frequently Asked Questions about the 2006-2011 DTS TCM
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) and the latest GM software onto the module before shipping it. This ensures it communicates perfectly with your car’s engine computer and other systems, just like one from the factory. No extra programming is needed.
Do I need to send my old TCM back?
No, there is no core charge for this part. You can keep your old module or dispose of it, making the process faster and more convenient for you.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. This module will often resolve the underlying issue causing the P0700, such as a faulty internal circuit or solenoid driver. After installation, be sure to clear all codes with a scan tool.
Is this a difficult part for a DIYer to install?
Not at all. This is one of the easier electronic modules to replace. With basic hand tools and our instructions, most people can complete the job in under 30 minutes. The pre-programming is what makes it a simple plug-and-play repair.