Is Your Pontiac Montana Shifting Erratically?
Dealing with transmission problems in your family minivan can be a major source of stress. If you’re experiencing harsh shifts, a check engine light that won’t go away, or the vehicle getting stuck in ‘limp mode,’ a failing TCM is the most likely culprit. Don’t let a faulty module compromise your vehicle’s safety and reliability. This VIN-programmed T42 Pontiac Montana Transmission Control Module is the definitive solution to get you back on the road with confidence.
Common Symptoms & Your Solution
A failing T42 TCM can cause a cascade of frustrating issues. This pre-programmed module is engineered to resolve them permanently. If you’re noticing any of the following, it’s time for a replacement:
- Harsh, delayed, or unpredictable gear shifts
- The vehicle is stuck in a single gear (limp mode)
- Active Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift, leading to poor acceleration and fuel economy
- Complete loss of communication with the transmission
Features & Benefits
- âś” Plug-and-Play Installation: This module arrives pre-programmed to your Montana’s specific VIN. This critical step eliminates the need for expensive dealership programming, saving you time and money while ensuring perfect communication between the module and your vehicle’s systems.
- âś” Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM restores the smooth, predictable performance your vehicle had when it was new. Enjoy a comfortable ride and improved fuel efficiency.
- âś” Engineered for Reliability: Built to meet or exceed strict OEM specifications, this T42 Pontiac Montana Transmission Control Module is designed for long-lasting durability, giving you peace of mind on every trip.
- âś” Guaranteed Fitment: This unit is a direct replacement for a wide range of GM service numbers, including 24252114, 24234503, 24230461, and 24235340, ensuring compatibility.
- âś” Warranty Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
For modern GM vehicles, the Transmission Control Module is the brain of the automatic transmission. It’s not just a generic part; it’s specifically calibrated to your vehicle’s engine, tire size, and gear ratios. Installing a non-programmed module is like giving your transmission amnesia—it doesn’t know how to operate correctly. Our VIN programming service writes your vehicle’s exact DNA onto the module *before* it ships. This ensures all electronic systems work in harmony from the moment you plug it in, preventing the common shifting and communication errors that plague generic, un-programmed parts.
By installing this precision-programmed T42 Pontiac Montana Transmission Control Module, you are not just replacing a part; you are restoring your vehicle’s core functionality and ensuring its dependability for years to come. Installation is straightforward for a DIYer or any professional mechanic, typically taking less than 30 minutes. Simply disconnect the battery, swap the module, and clear any remaining codes with a basic scan tool.
Frequently Asked Questions
What does a Transmission Control Module do?
The TCM is a computer that controls your automatic transmission. It reads data from various sensors to determine the perfect time to shift gears, engage the torque converter, and adjust fluid pressure, ensuring smooth operation and optimal fuel economy.
Is this TCM difficult to install?
No, installation is quite simple. On the Pontiac Montana, it’s typically located on the LH strut tower. The process involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. Since it comes pre-programmed, no further complex steps are needed.
How do I know this is the right part for my Montana?
This module is specified for the 2006-2009 Pontiac Montana. To be 100% certain, you can match the service number on your original part to the list of interchangeable numbers in our description. Providing us with your VIN during checkout guarantees we program it correctly for your specific vehicle.
What happens if I don’t program the TCM to my VIN?
An un-programmed TCM will likely cause immediate and severe issues, such as incorrect shifting, error codes, and the vehicle may not even start. Our VIN programming service is essential for proper function and is included with your purchase.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep or dispose of your old module without the hassle of returning it.