Is Your Saturn SKY or Solstice Shifting Erratically?
Are you experiencing frustrating and unpredictable transmission problems with your vehicle? A faulty Transmission Control Module (TCM) is one of the most common culprits behind issues like harsh shifting, delayed gear engagement, and getting stuck in one gear. These problems not only make your car unpleasant to drive but can also lead to further transmission damage if left unaddressed. This replacement TCM, part number 24239785, is the definitive solution to restore your vehicle’s shifting performance and reliability.
From the Diagnostic Bay
We recently had a 2008 Pontiac Solstice GXP come into the shop. The owner was convinced he needed a full transmission rebuild, quoted at over $3,500 by another shop. The car would slam into gear from a stop and sometimes refuse to shift out of 2nd. After a quick scan, we saw communication fault codes with the TCM. Instead of a costly mechanical overhaul, we installed a VIN-programmed TCM. The total repair took less than an hour, and the car shifted like it just rolled off the showroom floor. The customer was ecstatic to have saved thousands by correctly diagnosing the electronic failure first.
Common Symptoms of a Failing Saturn SKY TCM
- ✔ Harsh or erratic shifting between gears.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ The transmission getting stuck in one gear (limp mode).
- ✔ Check Engine Light illuminated with transmission-specific codes (e.g., P0700, P0751, P0756).
- ✔ Loss of communication with the TCM, preventing diagnostics.
- ✔ Inability to start the vehicle in some cases, as the TCM is part of the starting circuit.
The Plug-and-Play Solution
The biggest hurdle in replacing a modern vehicle module is the need for expensive, dealer-specific programming tools. We eliminate that problem entirely. When you purchase this Saturn SKY TCM, you provide us with your vehicle’s 17-digit VIN. Our technicians will then flash the module with the latest GM-certified software specific to your car’s configuration. This ensures perfect compatibility and function right out of the box. No trips to the dealership, no extra programming fees, and no special tools required. It arrives at your door ready for installation.
Guaranteed Fitment and Compatibility
This module is a direct replacement for several original part numbers, ensuring wide compatibility across multiple GM platforms. It is the correct part for the following vehicles and part numbers:
- Part Numbers: 24239785, 24235224, YLMU
- Compatible Vehicles:
- 2007-2010 Saturn SKY (Transmission)
- 2006-2010 Pontiac SOLSTICE (Transmission)
- 2007 Cadillac STS (Transmission)
- 2007-2009 Cadillac SRX (Transmission)
- 2010 Cadillac CTS (Transfer Case)
- 2010-2011 Cadillac STS (Transfer Case)
Simply confirm your vehicle is on the list and that your original part number is a match. The installation process is straightforward for any competent DIY mechanic or professional technician. For the SKY and Solstice, the module is typically located on the left-hand front frame rail.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before the part is shipped. Simply provide your vehicle’s 17-digit VIN during or after checkout, and the module will arrive ready to install and function correctly.
Where is the TCM located on my 2008 Saturn SKY?
On the 2007-2010 Saturn SKY and Pontiac Solstice, the Transmission Control Module is located on the driver’s side (LH) front frame rail in the engine bay.
What information do you need to program the TCM?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to load the exact software and calibrations your car needs for proper operation.
Will this fix my transmission’s hard shifting?
A faulty TCM is a very common cause of electronic shifting problems like hard shifts, flares, and delayed engagement. While this part is the correct solution for those symptoms, we always recommend a proper diagnosis to rule out any mechanical issues within the transmission itself.
Is this part difficult to install?
The physical installation is generally straightforward. It involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. Most DIY mechanics with basic tools can complete the job in under an hour.