Restore Your Cadillac’s Shifting Performance
Are you experiencing frustrating and unpredictable transmission issues with your 2007-2009 Cadillac SRX? Symptoms like harsh shifting, delayed engagement, getting stuck in gear, or an illuminated check engine light can often point directly to a failing Transmission Control Module (TCM). This critical component is the brain of your automatic transmission, and when it malfunctions, it can make your luxury vehicle feel unreliable and unsafe. Don’t let a faulty module sideline your SRX. This is your direct-fit, VIN-programmed solution to restore the smooth, precise shifting you expect from your Cadillac.
This replacement TCM, part number 24239785, arrives at your door fully programmed with the latest GM software updates specific to your vehicle’s VIN. This crucial step eliminates the need for an expensive trip to the dealership for programming, saving you both time and money. By providing us with your VIN at checkout, you ensure that the module is a true plug-and-play component, ready for installation and communication with your vehicle’s other electronic systems right out of the box.
From the Diagnostic Bay
We had a 2008 Cadillac SRX come into the shop with the classic complaint: erratic shifting and the transmission occasionally going into ‘limp mode.’ The customer had already replaced two shift solenoids based on a generic code reader’s output, with no improvement. Our initial scan showed communication errors with the TCM. Before condemning the module, we always check the main connector and wiring harness. We found the harness pins were clean and the wiring had proper continuity. This confirmed our suspicion: the internal logic of the original TCM was failing. We installed a VIN-programmed module just like this one, performed a transmission fluid service, and the car drove off the lift shifting like it was new again. It’s a reminder that while codes point you in a direction, confirming the component failure is key before spending money on parts.
Common Symptoms of a Faulty 2007-2009 SRX TCM
If you’re noticing any of the following issues, a failing transmission control module is the most likely cause. A bad TCM can manifest in various ways as it loses its ability to correctly interpret sensor data and command the transmission’s mechanical parts.
- ✔ Harsh or erratic shifting between gears
- ✔ Transmission getting stuck in one gear (limp mode)
- ✔ Delayed engagement when shifting from Park to Drive or Reverse
- ✔ Check Engine Light illuminated with transmission-related fault codes (e.g., U0101, P0700)
- ✔ Inaccurate gear display on the instrument cluster
- ✔ Poor fuel economy due to inefficient shifting
- ✔ Complete loss of communication with the module, preventing the vehicle from starting
Why Choose a VIN-Programmed Module?
The Transmission Control Module is not a simple part you can swap from another vehicle. It is integrated into your SRX’s complex network of computers and must be specifically calibrated to your vehicle’s unique configuration, including engine type, gear ratios, and tire size. Our professional programming service ensures this module works seamlessly with your Engine Control Module (ECM) and Body Control Module (BCM). This is the definitive solution to get your vehicle back on the road quickly and correctly, avoiding the common pitfalls and compatibility issues associated with un-programmed or incorrectly sourced modules.
Guaranteed Compatibility
This module is a direct replacement for part numbers 24239785, 24235224, and YLMU. It is guaranteed to fit and function in the following vehicles:
Cadillac SRX: 2007, 2008, 2009 (Transmission; RH front engine compartment)
Cadillac STS: 2007 (Transmission), 2010-2011 (Transfer Case; RH dash)
Cadillac CTS: 2010 (Transfer Case; RH dash, ID 2423522, YLMU, or 24239785)
Pontiac Solstice: 2006, 2007, 2008, 2009, 2010 (Transmission; LH front frame rail)
Saturn Sky: 2007, 2008, 2009, 2010 (Transmission; LH front frame rail)
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you can add your 17-digit Vehicle Identification Number (VIN) in the notes section of your order or reply to your order confirmation email. We cannot ship your part until we receive your VIN, as the programming is essential for the part to function.
Is this a difficult part to install?
The physical installation is straightforward for a qualified mechanic. On the 2007-2009 SRX, the TCM is located in the right-hand front of the engine compartment. While it is a direct bolt-in replacement, we always recommend installation by a professional automotive technician who can ensure the connections are secure and can perform any necessary relearn procedures after installation.
Will this fix my specific transmission problem?
This module is the solution for failures of the electronic control unit itself. While the symptoms listed are highly indicative of a bad TCM, we always recommend a proper diagnosis by a professional mechanic. Other issues, such as faulty wiring, bad solenoids, or internal mechanical failures, can sometimes mimic TCM symptoms.
Do I need to send my old part back?
This purchase does not require a core return. You can keep your old module, which saves you the time and hassle of packaging and shipping it back to us.
What if my original part number is slightly different?
This module is a direct replacement for part numbers 24235224, 24239785, and YLMU. As long as your vehicle is on the compatibility list and your original part is one of these numbers, this module will work perfectly once programmed to your VIN.