2001 – 2005 GMC SIERRA 3500 Transmission control module 09387820 – Programmed To Your VIN
Experiencing rough shifts or delayed gear changes in your 2001-2005 GMC Sierra 3500 during heavy towing? These issues often stem from a faulty transmission control module, disrupting your truck’s performance on demanding jobs. Our pre-programmed transmission control module arrives ready to install, flashed with the latest GM updates using your VIN for seamless integration. It restores optimal transmission function, ensuring reliable power delivery and smoother operation. Furthermore, this direct replacement matches your vehicle’s specifications perfectly, eliminating guesswork. It serves as a direct replacement for the following compatible part numbers: 15768288, 15071240, 15163072, 15163073, 15169833, 15169834, 15169835, 15183963, 15187103, 15187104, 29537441, 09385220, and 09387820. Consequently, you gain peace of mind knowing it fits your Allison 5-speed automatic transmission precisely.
Key Features & Benefits
- Delivers precise programming based on your VIN, ensuring flawless compatibility with your GMC Sierra 3500’s systems.
- Incorporates the newest GM software updates, enhancing transmission reliability and efficiency.
- Supports the Allison 5-speed automatic (opt M74), providing robust control for heavy-duty tasks.
- Restores accurate shifting patterns, reducing wear on drivetrain components over time.
- Offers plug-and-play convenience, saving you time and hassle during replacement.
- Boosts overall vehicle drivability, making long hauls and daily drives more dependable.
- Comes with expert-backed quality, drawing from years of automotive module expertise for lasting performance.
Common Problems Solved
Your 2001-2005 GMC Sierra 3500 might face transmission woes like erratic shifting, where gears slip unexpectedly during acceleration. Another key issue is limp mode activation, limiting your truck to lower gears and hindering towing capacity. Furthermore, you could encounter delayed engagement when shifting from park to drive, causing frustration in stop-and-go traffic. Overheating warnings may also arise due to poor module communication with the Allison system. This transmission control module addresses these by recalibrating signals for smooth operation. For instance, it fixes diagnostic trouble codes related to solenoid failures, preventing costly breakdowns. Consequently, drivers regain confidence on highways or job sites, avoiding roadside hassles. In real-world scenarios, such as hauling heavy loads, this part ensures consistent power without interruptions, extending your vehicle’s lifespan.
Simple Installation Process
- Provide your VIN immediately after purchase so we can program the module with the latest GM updates before shipping.
- Disconnect the battery to ensure safety and reset any existing codes in the system.
- Locate the old transmission control module on the left fan shroud near the transmission area.
- Remove the connectors and mounting bolts carefully, then extract the faulty unit.
- Install the new programmed module in the same position, securing it firmly and reconnecting all wires.
- Reconnect the battery, start the engine, and test for smooth shifting—contact us if issues persist for expert support.
Guaranteed Fitment
This module is guaranteed to be compatible with the following vehicles:
2001 – 2005 GMC SIERRA 3500
Please verify your part number matches one of the compatible numbers listed above before ordering.