Restore Smooth Shifting to Your Saturn Aura
Is your 2007, 2008, or 2009 Saturn Aura suffering from harsh shifting, delayed gear engagement, or a frustrating check engine light? These are classic signs of a failing Transmission Control Module (TCM). As the electronic brain of your automatic transmission, a faulty TCM can make driving unpredictable and unsafe. This replacement T42 TCM, part number 24235753, is the definitive solution to get your vehicle operating correctly again.
Over my 20+ years in the garage, I’ve seen countless GM vehicles, including the Saturn Aura, come in with these exact issues. The root cause is often the original TCM succumbing to years of heat cycles and vibration. This isn’t just an annoyance; it affects fuel economy and can lead to more significant transmission damage if ignored. Our 2007-2009 Saturn Aura TCM is engineered to meet or exceed original equipment standards, providing a reliable and lasting repair.
Case Study: A Tricky Diagnosis
A customer brought in their 2008 Saturn Aura complaining of a violent bang when shifting from 1st to 2nd gear and the car occasionally refusing to shift past 3rd (limp mode). They had already replaced a shift solenoid with no improvement. A quick scan showed a general transmission fault code, P0700. Based on experience, I suspected the TCM. After installing one of our VIN-programmed modules, the car shifted like it just rolled off the factory floor. The customer saved hundreds by avoiding a dealership visit for programming and unnecessary parts.
Is Your Aura Showing These Telltale Signs?
- ✔ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔ The vehicle is stuck in a single gear (often called “limp mode”) and won’t shift up or down.
- ✔ An illuminated Check Engine Light or Transmission Warning Light on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as P0700, P0750, or other solenoid-related faults.
- ✔ A noticeable drop in fuel efficiency due to improper gear management.
- ✔ Complete loss of communication with the transmission, preventing it from functioning.
DIY-Friendly Installation: Your Step-by-Step Guide
Installing your new 2007-2009 Saturn Aura TCM is a straightforward job that most DIY mechanics can complete in under an hour. For the Saturn Aura, the module is typically located on the left front frame rail.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the TCM: On your 2007-2009 Aura, find the module mounted to the front portion of the driver’s side frame rail.
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle with the locking tabs. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new VIN-programmed TCM into place and securely reconnect the electrical harnesses. You should hear a click as they lock.
- Final Steps: Reconnect the battery terminal. While our programming handles the heavy lifting, it’s good practice to use a basic OBD-II scan tool to clear any lingering fault codes from the vehicle’s memory.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the specified Saturn Aura models and is also compatible with a wide range of other General Motors vehicles. It is interchangeable with multiple part numbers, including 24242391, 24234503, and 24252114.
- Saturn Aura: 2007, 2008, 2009 (Located on LH frame rail front)
- This part also fits many other GM cars, trucks, and SUVs from 2006-2014, such as the Chevrolet Impala, GMC Sierra, Buick LaCrosse, and more. Please verify your part number or contact us for fitment confirmation.
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean for me?
It means we flash the module with your vehicle’s unique Vehicle Identification Number (VIN) and the latest GM software before shipping. This ensures it communicates perfectly with your car’s other computers right out of the box, eliminating the need for an expensive trip to the dealership for programming.
Do I need any special tools for this installation?
No special tools are required. Basic hand tools like a socket set and a wrench are all you should need to access and replace the module. An OBD-II scanner is recommended for clearing codes but is not always necessary.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us, which saves you time and return shipping costs.
Will this part fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the main engine computer. While this module often resolves the underlying cause of a P0700 code, it’s important to ensure there are no other mechanical or wiring issues. In the vast majority of cases where symptoms align with TCM failure, this part is the correct fix.
How do I provide my VIN for programming?
You can enter your vehicle’s 17-digit VIN during the checkout process. Please double-check it for accuracy to ensure proper programming for your specific Saturn Aura.