Is Your Uplander’s Transmission Acting Up?
If you’re dealing with a 2006-2009 Chevrolet Uplander that’s suddenly shifting hard, refusing to shift, or has the check engine light glaring at you, the problem is very likely a failing Transmission Control Module (TCM). As a mechanic with over two decades of experience, I’ve seen this exact issue hundreds of times. These vans are workhorses, but the constant heat cycles under the hood can be brutal on electronics, and the TCM is often the first to show signs of trouble.
A faulty TCM can turn a reliable family vehicle into a source of constant stress. You might be experiencing delayed engagement when shifting from Park to Drive, unpredictable gear changes on the highway, or the dreaded “limp mode,” where the van is stuck in a single gear. These aren’t just annoyances; they are serious safety and reliability concerns.
The Direct Solution: A Programmed 2006-2009 Uplander TCM
This T42 Transmission Control Module, part number 24235732, is the definitive solution to restore your Uplander’s performance. The biggest hurdle with replacing a TCM has always been the expensive and time-consuming trip to a dealership for programming. We eliminate that entirely. We flash the module with your vehicle’s specific VIN and the latest GM software before it even ships. It arrives at your door ready for a true plug-and-play installation.
Expert Pro Tip: Check Before You Replace
Before you condemn your TCM, I always recommend a simple check. On these GM platforms, a failing ignition switch can cause intermittent voltage drops to the TCM, mimicking failure symptoms like erratic shifting and communication codes (U-codes). With the key on, check for a steady 12V+ at the TCM’s power supply pin. A flickering or low voltage reading might point to the ignition switch, not the module itself. It’s a 5-minute check that has saved my customers hundreds of dollars in unnecessary parts.
Symptoms You Can Solve Today
- โ Harsh & Erratic Shifting: Puts an end to jarring gear changes and slipping between gears.
- โ Limp Mode / Stuck in Gear: Restores full access to all gears, getting you out of failsafe mode.
- โ Check Engine & Transmission Lights: Clears common diagnostic trouble codes (DTCs) like P0700, P0750, and other solenoid-related faults.
- โ No Communication: Fixes issues where a scan tool cannot communicate with the transmission module.
- โ Poor Fuel Economy: Proper shift points and torque converter lockup will restore your MPG.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new 2006-2009 Uplander TCM is a straightforward job you can do in your driveway in under 30 minutes. For the Uplander, the TCM is conveniently located.
- Step 1: Safety First. Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the vehicle’s adaptive memory.
- Step 2: Locate the TCM. On your Uplander, you’ll find the TCM mounted to the driver’s side (LH) strut tower in the engine compartment. It’s a silver box with two large electrical connectors.
- Step 3: Disconnect and Remove. Carefully unclip the two wiring harness connectors. Then, unbolt the module from its mounting bracket.
- Step 4: Install the New Module. Bolt the new, pre-programmed TCM into place and securely reconnect the two wiring harnesses. Ensure they click into place.
- Step 5: Final Steps. Reconnect the battery terminal. Start the vehicle and let it idle for a few minutes. If you have a basic scan tool, it’s a good idea to clear any stored DTCs from other modules.
This module is a direct replacement for multiple part numbers, including 24242391, 24234503, and 24252114. By ordering from us, you get a quality-tested part, backed by a one-year warranty, that solves the problem correctly the first time. Don’t let a bad TCM keep your Uplander off the road. Order today and get back to confident, smooth driving.