End Frustrating Shifting Problems in Your Saturn Aura
If you’re dealing with a 2007-2009 Saturn Aura that’s shifting harshly, getting stuck in gear, or throwing transmission codes, you know how disruptive it can be. As a technician with over two decades of experience, I’ve seen countless drivers frustrated by these exact issues. Often, the root cause isn’t a catastrophic transmission failure but a faulty Transmission Control Module (TCM). This replacement T42-style TCM, part number 24239926, is the reliable, cost-effective solution to restore your vehicle’s performance and your peace of mind.
This isn’t just a part; it’s a complete fix. We pre-program the module to your vehicle’s specific VIN before it ships. This means no expensive trips to the dealership for programming—it arrives ready for a true plug-and-play installation. By managing shift points, torque converter clutch engagement, and line pressure, this module ensures your transmission operates exactly as the manufacturer intended, bringing back the smooth, predictable driving experience you’ve been missing.
Case Study: The Intermittent Limp Mode Fix
A customer brought in their 2008 Saturn Aura with a classic, maddening problem: it would randomly go into ‘limp mode,’ getting stuck in 3rd gear, but only after driving for 20+ minutes. The check engine light was on with a P0700 (Transmission Control System Malfunction) code. We checked the fluid and solenoids, which were fine. Experience pointed directly to the TCM. Heat soak was causing an internal failure in the original module. We installed one of our VIN-programmed TCMs, and the problem was solved instantly. The customer saved hundreds compared to a dealership visit and was back on the road the same day.
Is Your Saturn Aura Showing These Telltale Signs?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs replacement:
- âś” Harsh, slamming, or erratic gear shifts.
- âś” The vehicle feels stuck in one gear (often 2nd or 3rd, known as ‘limp mode’).
- âś” Delayed engagement when shifting from Park to Drive or Reverse.
- âś” Check Engine Light or Transmission Warning Light is illuminated.
- âś” Diagnostic Trouble Codes (DTCs) are present, especially P0700 or solenoid-specific codes (e.g., P0751, P0756).
- âś” A noticeable drop in fuel economy.
- âś” The transmission seems to slip or fails to shift up or down.
A Straightforward Guide to Replacing Your TCM
For the DIY mechanic, replacing the 2007-2009 Aura Transmission Module is a very manageable job that typically takes less than 30 minutes. No specialized tools are required.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the Module: On the Saturn Aura, the TCM is conveniently located on the front portion of the left-hand (driver’s side) frame rail in the engine bay.
- Disconnect and Remove: Carefully unclip the electrical connectors from the old module. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s good practice to use a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory. Start the car and enjoy smooth shifting!
Verified Vehicle Compatibility
While this listing is for the 2007-2009 Aura Transmission Module, this part is interchangeable with a wide range of General Motors vehicles. It directly replaces part numbers including 24234503, 24252114, and 24239926. Please verify your part number or consult the fitment list below. Key compatible models include:
- Saturn Aura: 2007-2009 (LH frame rail front)
- Chevrolet Cobalt & Pontiac G5/G6: 2006-2010 (LH strut tower)
- Chevrolet Impala & Monte Carlo: 2006-2011 (lower air cleaner housing)
- Chevrolet HHR: 2006-2011 (LH engine compartment)
- Chevrolet Silverado & GMC Sierra 1500: 2007-2013 (next to battery)
- Chevrolet Tahoe & GMC Yukon: 2007-2009 (next to battery)
- Buick LaCrosse & Allure: 2006-2009 (lower air cleaner housing)
- …and many other GM models from 2006-2014.
Frequently Asked Questions
What does ‘VIN Programmed’ mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) and the latest GM software onto the module before we ship it. This ensures it communicates perfectly with your car’s engine computer and other systems right out of the box, eliminating the need for dealer programming.
Is this a difficult part to install myself?
Not at all. For most DIYers with basic hand tools, this is a simple, quick installation. On the Saturn Aura, it’s easily accessible in the engine bay, and the process involves just a few bolts and electrical connectors.
Will this fix a P0700 code?
A P0700 code is a generic fault code indicating the TCM has detected a problem. While it can be caused by other issues, a failing TCM is a very common culprit. Replacing a faulty module with our programmed unit is a frequent and effective fix for this code.
Do I need to send my old part back?
No. We do not require a core charge for this part. You can keep your old module or dispose of it responsibly without any hassle.
What kind of warranty is included?
This transmission control module comes with a one-year warranty, giving you confidence and protection for your repair.