Restore Your Saturn Aura’s Shifting Performance
Are you experiencing frustrating and unpredictable transmission issues with your 2007-2009 Saturn Aura? Symptoms like harsh shifting, delayed gear engagement, or the dreaded check engine light can point directly to a failing Transmission Control Module (TCM). This critical component is the brain of your automatic transmission, and when it fails, it can make your vehicle unreliable and unsafe to drive. This genuine quality GM T42 TCM, part number 24235754, is the definitive solution, pre-programmed to your vehicle’s specific VIN for a seamless, plug-and-play installation.
From the Diagnostic Bay
We had a 2008 Saturn Aura come into the shop stuck in ‘limp mode’—it wouldn’t shift out of 3rd gear. The owner had already spent a small fortune replacing shift solenoids based on a generic P0750 code, but the problem persisted. After a quick data scan, we saw erratic commands coming from the TCM. The internal drivers that control the solenoids had failed, not the solenoids themselves. We installed one of our VIN-programmed T42 modules, cleared the codes, and the car was shifting perfectly within 20 minutes. It’s a classic case where replacing the brain, not the muscle, is the correct fix.
Is Your Saturn Aura Showing These Transmission Problems?
- ✔️ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔️ The vehicle is stuck in a single gear (limp mode) to protect the transmission.
- ✔️ Check Engine Light or Transmission Warning Light is illuminated on your dash.
- ✔️ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are present.
- ✔️ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔️ Complete loss of communication with the transmission, leading to a no-shift condition.
The Superior Solution: A VIN-Programmed 2007-2009 Saturn Aura TCM
Don’t settle for a generic, unprogrammed module that requires an expensive trip to the dealership. Our T42 TCMs are meticulously programmed with the latest GM software updates specific to your vehicle’s VIN. This crucial step ensures that the module communicates flawlessly with your vehicle’s Engine Control Unit (ECU) and other systems right out of the box. This tailored programming optimizes shift points, torque converter lockup, and fuel efficiency, restoring the smooth, reliable performance you expect from your vehicle. Built to meet or exceed OEM specifications, this module is your long-term fix for persistent transmission woes.
This module is a direct replacement for a wide range of GM vehicles using the T42 controller, including popular models like the Chevrolet Impala, GMC Sierra, and Buick LaCrosse. It interchanges with numerous part numbers, including 24252114, 24234503, and 24242391, making it a versatile and reliable choice for your repair.
Simple Installation Process
Installation is straightforward for a DIY mechanic or any professional technician. On the 2007-2009 Saturn Aura, the TCM is typically located on the front of the left frame rail. Always disconnect the vehicle’s battery before beginning the removal and installation process. Once the new module is installed and the battery is reconnected, use a standard OBD2 scan tool to clear any stored diagnostic trouble codes. With no core charge, you can keep your old part without the hassle of returns.
Frequently Asked Questions
Why is VIN programming so important for a TCM?
VIN programming loads your vehicle’s specific software, including shift strategies, torque limits, and communication protocols. Without it, a new TCM won’t know how to operate your specific transmission correctly, leading to poor performance, error codes, or even damage.
Will this part fix a P0700 transmission fault code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While a failing TCM is a common cause, this code can also be triggered by other issues. However, if you are experiencing other symptoms like erratic shifting or limp mode, replacing the TCM is often the correct solution.
Is this installation difficult for a DIY mechanic?
For most individuals with basic mechanical skills, this is a manageable job. The module is typically easy to access in the engine bay. The most important steps are disconnecting the battery first and clearing codes with a scan tool after installation. The process usually takes less than 30 minutes.
Do I need to take my car to a dealer after installing this part?
No. Because this module comes pre-programmed to your VIN, you can skip the expensive dealership visit for programming. It is a true plug-and-play solution.
What happens if I continue driving with a faulty TCM?
Continuing to drive with a bad TCM can lead to more severe and costly damage. Poor shifting can cause excessive wear on clutches and bands inside the transmission, potentially leading to a complete transmission failure that requires a full rebuild or replacement.