Restore Your Avalanche’s Smooth, Dependable Shifting
Erratic shifting, a check engine light, or your truck getting stuck in gear can be frustrating and concerning. These are classic signs of a failing Transmission Control Module (TCM). This genuine GM T42 TCM, pre-programmed to your 2007-2008 Chevrolet Avalanche 1500’s specific VIN, is the definitive solution to restore your vehicle’s performance and your peace of mind. Forget expensive dealership visits and complex programming tools; this module is engineered for a straightforward, plug-and-play installation, getting your versatile truck back on the road quickly and reliably.
Common Symptoms & Your Direct Solution
If your Avalanche is experiencing any of the following issues, a failing TCM is the most likely culprit. This pre-programmed module is designed to resolve these problems directly:
- Harsh or Erratic Shifting: Abrupt, jerky gear changes or delayed engagement from park to drive.
- Stuck in “Limp Mode”: The transmission will not shift past 2nd or 3rd gear as a protective measure.
- Warning Lights: An illuminated Check Engine Light or Transmission Warning Light on your dashboard.
- Diagnostic Trouble Codes (DTCs): Common codes include P0700 (Transmission Control System Malfunction) and various solenoid-specific codes (e.g., P0750, P0753, P0758).
- Poor Performance: A noticeable drop in fuel economy, sluggish acceleration, or a complete failure to shift gears.
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: Arrives pre-programmed to your Avalanche’s specific VIN using the latest GM software. This eliminates the need for dealership programming, saving you time and money.
- ✔ Restore Smooth Shifting: By precisely managing shift points, torque converter lockup, and line pressure, this module restores the smooth, factory-new feel to your transmission.
- ✔ A Permanent Fix for Common Codes: Directly resolves communication errors and fault codes like P0700 that are triggered by a faulty original module, turning off that persistent check engine light.
- ✔ Engineered for Durability: Built to strict OEM standards to withstand the demanding conditions of daily driving, hauling, or towing, ensuring long-term reliability for your truck. The proper function of your 2007-2008 Avalanche 1500 TCM is critical for transmission longevity.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
From Our Tech Bench: Why VIN Programming is Non-Negotiable
On these GM platforms, the TCM doesn’t just talk to the transmission—it’s in constant communication with the Engine Control Module (ECM), ABS, and other vehicle systems. A generic, non-programmed module simply won’t work. Our VIN programming process ensures the TCM has the exact software and calibration files for your Avalanche’s specific configuration (engine, axle ratio, tire size). This guarantees flawless communication between all modules, resulting in perfect shift timing, accurate diagnostics, and the reliable performance you expect from your truck. This isn’t just a convenience; it’s essential for a correct and lasting repair.
By installing this precisely calibrated 2007-2008 Avalanche 1500 TCM, you are not just replacing a part; you are restoring a critical component of your vehicle’s powertrain. This ensures every command from your accelerator is met with a smooth, decisive gear change. This module is a direct replacement for multiple service numbers, including 24252114, 24234503, and 24230461.
Frequently Asked Questions
Do I need to take this TCM to a dealer for programming?
Absolutely not. The main benefit of our service is that this module arrives at your door fully programmed to your vehicle’s VIN. It is ready for a plug-and-play installation right out of the box, saving you hundreds of dollars in dealership fees.
Where is the TCM located on a 2007-2008 Avalanche?
On the 2007-2008 Chevrolet Avalanche 1500, the Transmission Control Module is typically located in the engine compartment, right next to the battery. Installation is straightforward and can usually be completed in under 30 minutes.
Will this fix a P0700 trouble code?
Yes. The P0700 code is a general fault code indicating that the TCM has detected a problem and has requested the check engine light to be turned on. Replacing a faulty 2007-2008 Avalanche 1500 TCM is the most common and direct way to resolve this and related transmission codes.
How do I provide my vehicle’s VIN?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. This is crucial for us to program the module correctly for your specific truck.
Is a core charge required for my old part?
No, there is no core charge. You can keep your old module, eliminating the hassle and expense of shipping a core back to us.