Restore the Precision and Power of Your Cadillac
There’s nothing more frustrating than when the sophisticated, smooth-shifting transmission in your Cadillac STS or XLR begins to act erratically. Hard shifts, delayed engagement, or a warning light on the dash can ruin the driving experience and create serious concern. This is not a mechanical failure you have to live with. You can restore the crisp, responsive performance you expect with our VIN-programmed 2005 Cadillac STS Transmission Control Module, the definitive solution for getting your luxury vehicle back to peak operating condition.
Common Symptoms & Your Solution
If your vehicle is experiencing any of the following issues, a failing TCM is the most likely culprit. This module is the electronic brain of your transmission, and when it falters, the symptoms are impossible to ignore:
- Harsh or erratic shifting between gears
- Transmission getting stuck in one gear (limp mode)
- Delayed engagement when shifting into Drive or Reverse
- Check Engine Light or Transmission-specific warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0751, P0756, or U0101 (Loss of Communication with TCM)
Our pre-programmed TCM is the direct answer to these problems. We take a genuine module, flash it with the latest GM-certified software updates, and program it specifically to your car’s Vehicle Identification Number (VIN). This ensures it works seamlessly with your vehicle’s specific options and systems right out of the box, eliminating the need for an expensive trip to the dealership for programming.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: This isn’t a generic, one-size-fits-all part. We flash the module to your exact VIN, ensuring 100% correct communication with your engine and other control systems for a true plug-and-play installation.
- ✔ Loaded with Latest GM Software: Your module arrives with the most current software updates from General Motors. This corrects known factory bugs and optimizes transmission performance and longevity.
- ✔ Restores Original Shift Quality: Eliminate harsh bangs, slips, and hesitations. Restore the smooth, precise, and responsive shifting characteristics that define the Cadillac driving experience.
- ✔ Direct-Fit Replacement: Guaranteed compatibility for part numbers 24222734, 24229789, and 24240283, ensuring a perfect fit for your 2005 Cadillac STS or 2004-2005 Cadillac XLR.
- ✔ Cost-Effective Dealer Alternative: Get a fully programmed, ready-to-install module without paying high dealership prices for the part and the separate programming labor.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming: The transmission in your Cadillac is a highly complex system that relies on perfect data from the engine, wheel speed sensors, and more. The TCM is the conductor of this orchestra. Using a non-programmed module from a local parts store is like asking a new conductor to lead without sheet music—it will lead to chaos. Our VIN-specific programming ensures your new 2005 Cadillac STS Transmission Control Module has the exact calibration and software your vehicle was designed to use, for flawless performance from the moment you turn the key.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. The main benefit of our service is that we handle all the programming for you before we ship the part. Simply provide us with your vehicle’s 17-digit VIN during or after checkout, and the module will arrive ready for installation.
Where is the TCM located on my 2005 Cadillac STS or XLR?
On these specific models, the Transmission Control Module (TCM) is typically located in the engine compartment on the right-hand (passenger) side, often near the firewall or shock tower.
How do I provide my VIN?
You can add your VIN in the notes section during checkout or simply reply to your order confirmation email with the 17-digit VIN. We cannot ship your order until we receive this information.
What makes this different from a used part from a junkyard?
A used part from another vehicle is programmed to that car’s specific VIN and options. It will not function correctly in your car and can cause further issues. Our module is professionally flashed with the newest software and then coded specifically for your vehicle’s configuration.
Is this a difficult part to install?
For someone with moderate mechanical experience, the physical replacement is straightforward. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module to swap in the new one. Because our 2005 Cadillac STS Transmission Control Module is pre-programmed, there are no complex electronic steps required after installation.