Restore Peak Transmission Performance in Your Saturn Aura
Is your 2007-2009 Saturn Aura experiencing frustrating transmission issues like harsh shifting, delayed gear engagement, or a check engine light that won’t go away? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for coordinating shift points, managing fluid pressure, and ensuring smooth, efficient operation. When it fails, it can leave you stranded or with a vehicle that’s unpredictable and unsafe to drive. This genuine quality GM T42 Transmission Control Module, service number 24239926, is the definitive solution to restore your vehicle’s drivability and peace of mind.
From the Diagnostic Bay
We had a 2008 Saturn Aura come into the shop with the classic ‘stuck in 3rd gear’ complaint. The customer had already replaced two shift solenoids based on a generic code reader, but the problem persisted. After a quick scan with our professional equipment, we identified intermittent communication loss with the TCM. Instead of throwing more parts at it, we installed one of our VIN-programmed T42 modules. The car immediately started shifting perfectly, and all transmission codes were cleared. It’s a reminder that addressing the root cause—the failing computer—is often the most effective and economical repair.
Symptoms of a Failing Saturn Aura TCM
A faulty TCM can manifest in various ways, often mimicking mechanical transmission failure. Before considering a costly transmission rebuild, check if your vehicle is exhibiting these common electronic symptoms:
- ✔️ Harsh, slamming, or erratic gear shifts.
- ✔️ The vehicle gets stuck in a single gear, often called ‘limp mode’.
- ✔️ Illumination of the Check Engine Light or Transmission Warning Light.
- ✔️ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- ✔️ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔️ Poor fuel economy and a feeling of sluggish performance.
- ✔️ Complete failure to shift gears up or down.
Why Choose Our Pre-Programmed T42 TCM?
The biggest hurdle in replacing a modern vehicle module is the need for expensive dealership programming. Our modules eliminate this step entirely. We pre-program this Saturn Aura TCM to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that it arrives ready for a true plug-and-play installation. It integrates seamlessly with your vehicle’s existing systems, including the engine control module and anti-lock brake system, for flawless performance from the moment it’s installed. This process loads the latest GM software updates, resolving many common factory bugs and improving overall transmission logic for enhanced durability and smoother operation.
This module is a direct replacement for a wide range of GM vehicles using the T42 controller and is interchangeable with part numbers including 24252114, 24234503, 24230461, 24234274, 24239926, 24256960, and more. Built to strict OEM specifications, it comes with a one-year warranty for your confidence. No core charge means you can complete the repair without the hassle of returning your old part.
Frequently Asked Questions
Will I need to program this module after installation?
No. This module comes pre-programmed to your vehicle’s VIN. It is a plug-and-play solution that does not require any additional programming or trips to the dealership.
Where is the TCM located on my Saturn Aura?
On the 2007-2009 Saturn Aura, the Transmission Control Module is typically located on the front of the left-hand frame rail in the engine compartment.
Is this a difficult part to install myself?
For someone with basic mechanical skills, the installation is straightforward and usually takes less than 30 minutes. It involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in reverse order.
What happens if I continue driving with a bad TCM?
Continuing to drive with a faulty TCM can lead to severe damage to your transmission’s mechanical components. Harsh shifting and incorrect fluid pressure can burn out clutches and damage internal parts, potentially leading to a complete transmission failure that is far more expensive to repair.
Does this part come with a warranty?
Yes, this Transmission Control Module is backed by our comprehensive one-year warranty, covering any defects in materials or workmanship.