Restore Peak Performance to Your Chevrolet HHR
Is your 2006-2011 Chevrolet HHR experiencing frustrating transmission problems like harsh shifting, delayed gear engagement, or getting stuck in limp mode? These are classic indicators of a failing Transmission Control Module (TCM). As the central computer for your automatic transmission, a faulty TCM can disrupt your vehicle’s performance and reliability. This OEM-quality T42 TCM, part number 24252114, is the definitive solution. It arrives expertly programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits and ensuring a seamless, plug-and-play installation.
From the Diagnostic Bay
We recently had a 2009 HHR in the shop that was causing its owner major headaches. The vehicle would slam into second gear and occasionally refuse to shift past third, accompanied by a persistent P0700 transmission fault code. After confirming the fluid level and solenoids were fine, our diagnostics pointed directly to the TCM. Years of heat cycles and engine vibration had taken their toll on the internal electronics. We installed one of these VIN-programmed T42 modules, cleared the stored codes, and the HHR’s transmission was immediately smooth and responsive. It’s a common issue on these vehicles, but this part makes for a reliable and straightforward repair.
Symptoms of a Failing 2006-2011 HHR Transmission Module
If you’re noticing any of the following issues, your TCM is the likely culprit. Replacing it can prevent further damage to your transmission’s mechanical components.
- ✔ Harsh, erratic, or delayed shifting between gears.
- ✔ Vehicle is stuck in a single gear (limp mode), often 2nd or 3rd.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are present.
- ✔ Complete loss of upshifting or downshifting capabilities.
- ✔ A noticeable decrease in fuel economy.
- ✔ Intermittent electrical issues that seem to affect transmission function.
Key Features and Direct-Fit Benefits
This module is engineered to restore your vehicle’s factory performance and reliability without any guesswork.
- ✔ VIN Programmed for Your HHR: We program the module with the latest GM software updates using your vehicle’s VIN. This ensures perfect communication between the engine and transmission for optimal shift points and fuel efficiency right out of the box.
- ✔ No Dealership Required: Save time and money by avoiding the hassle of having a new module programmed by a dealer. This is a true plug-and-play solution.
- ✔ Restores Smooth Operation: By precisely controlling shift solenoids and torque converter lockup, this module eliminates hard shifts and gear hunting, providing a comfortable driving experience.
- ✔ Built to OEM Standards: Manufactured to meet or exceed original equipment specifications for durability and longevity, ensuring it can handle the demands of daily driving. Backed by a one-year warranty for your peace of mind.
- ✔ Broad Compatibility: This T42 TCM is a direct replacement for multiple part numbers, including 24234503, 24242391, 24256960, and more, making it a versatile solution for many GM vehicles.
Simple Installation Process
For the 2006-2011 Chevrolet HHR, the TCM is conveniently located in the left-hand (driver’s side) engine compartment. The replacement process is straightforward and can typically be completed in under 30 minutes. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Once reconnected, use a standard OBD2 scan tool to clear any remaining fault codes. There is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
Does this TCM require programming at the dealership?
No. This module comes pre-programmed to your vehicle’s specific VIN. It is ready for installation right out of the box, saving you a trip to the dealer and additional programming fees.
Where is the transmission module on a 2006-2011 Chevy HHR?
The Transmission Control Module (TCM) on the 2006-2011 HHR is located in the engine compartment on the driver’s side (LH side), often near the strut tower or under the air cleaner box.
What issues does a faulty TCM cause in an HHR?
A bad TCM can cause a range of problems, including hard or erratic shifting, the vehicle being stuck in one gear (limp mode), poor fuel mileage, and the illumination of the check engine or transmission warning lights.
Is this a reliable replacement part?
Absolutely. This module is built to strict OEM quality standards to ensure long-lasting durability and dependable performance. It also includes a one-year warranty for added confidence in your repair.
Will this part fix transmission-related error codes?
Yes, this is the correct solution for many common transmission diagnostic trouble codes, including the general fault code P0700 and specific solenoid codes. Installing this pre-programmed module will resolve the electronic fault causing these codes to appear.