Is Your Chevy HHR Shifting Erratically?
Is your 2006-2011 Chevrolet HHR suffering from harsh shifts, getting stuck in gear, or illuminating the check engine light with transmission codes? A failing Transmission Control Module (TCM) can sideline your practical daily driver, causing immense frustration and uncertainty. This VIN-programmed T42 Transmission Control Module is the direct-fit, plug-and-play solution designed to restore the smooth, reliable performance you depend on, getting you back on the road with confidence.
Common Symptoms & Your Solution
A faulty TCM can manifest in various ways, often mimicking a more severe mechanical failure. If you’re experiencing any of the following, this module is the definitive solution:
- Harsh, jerky, or delayed gear shifts
- The vehicle is stuck in “limp mode” (usually 2nd or 3rd gear)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel economy and a feeling of sluggish performance
Instead of facing a costly trip to the dealership for diagnostics and programming, this module arrives ready for installation. By directly addressing the electronic brain of your transmission, our 2006-2011 Chevy HHR Transmission Control Module corrects these issues at their source, providing a lasting and reliable fix.
Features & Benefits
- ✔ Plug & Play Installation: This module is expertly pre-programmed to your HHR’s specific Vehicle Identification Number (VIN). This eliminates the need for expensive dealership programming, saving you time and money.
- ✔ Restored Drivability: By installing a module with the latest GM software updates, you’ll restore crisp, smooth shifting and proper torque converter lockup, improving both performance and fuel efficiency.
- ✔ Problem-Solving Power: Specifically designed to resolve common DTCs and erratic electronic behavior, this is the most direct way to fix the root cause of many frustrating transmission problems.
- ✔ OEM-Standard Quality: Engineered to meet or exceed original equipment standards, ensuring dependable operation and long-term durability for your vehicle.
- ✔ This unit is backed by our one-year replacement warranty.
From the Technician’s Bench: “For years, we’ve seen HHR and Cobalt owners come in fearing their transmission is shot. They describe harsh bangs into gear or getting stuck on the highway. Nine times out of ten, the problem isn’t the hard parts—it’s the factory TCM. Swapping in a properly programmed 2006-2011 Chevy HHR Transmission Control Module like this one is the fix. It’s incredibly satisfying to see the customer’s relief when a 30-minute install makes their car drive like new again.”
This module is the ideal, hassle-free solution for any DIY mechanic or professional shop looking to perform a reliable repair on a 2006-2011 Chevy HHR Transmission Control Module. It’s also a direct replacement for a wide range of other GM vehicles, including the Cobalt, G6, Impala, and more, sharing the same T42 TCM architecture.
Frequently Asked Questions
Do I need to take my car to the dealer to have this module programmed?
Absolutely not. We program the module to your vehicle’s VIN before it ships. This makes it a true plug-and-play part, ready for installation right out of the box with no extra steps required.
Where is the TCM located on my 2006-2011 Chevy HHR?
On the Chevrolet HHR, the Transmission Control Module is typically located in the engine compartment on the driver’s side (LH) of the vehicle, often near the strut tower or under the air cleaner box.
Will this part fix a P0700 trouble code?
Yes, in many cases it will. The P0700 code is a general fault code indicating the TCM has detected a problem. A failing TCM is a very common cause of this code, and replacing it often resolves the issue and allows related codes to be cleared.
Is this an original GM part?
This is a high-quality replacement part built to meet and exceed strict OEM (Original Equipment Manufacturer) standards for fit, function, and durability, ensuring performance equivalent to the factory unit.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part without the hassle of returning it, making the repair process simpler and more convenient for you.