Restore Your HHR’s Smooth Performance
Is your 2006-2011 Chevrolet HHR suffering from harsh shifts, getting stuck in gear, or showing a persistent check engine light? A faulty Transmission Control Module (TCM) can disrupt your daily drive, turning a reliable car into a source of constant worry. This expertly programmed T42 TCM is the direct-fit solution to restore your HHR’s smooth, predictable performance and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. This module is engineered to be the definitive solution, correcting the root cause of these frustrating problems. Don’t let a bad module sideline your vehicle; our Programmed 2006-2011 HHR Transmission Control Module is the reliable fix you need.
- Harsh, erratic, or delayed gear shifts
- Vehicle 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 codes
- Failure to upshift or downshift properly
- Noticeably poor fuel economy
- Complete loss of transmission communication
Features & Benefits
- ✔ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This eliminates the need for expensive dealership visits or special programming tools, saving you time and money.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM restores the smooth, responsive feel your HHR had from the factory.
- ✔ Solve Annoying Warning Lights: Specifically designed to resolve common transmission-related DTCs, helping you clear that check engine light for good.
- ✔ Built to OEM Standards: Engineered for reliability and durability, ensuring it meets or exceeds original equipment specifications for a long-lasting repair.
- ✔ Guaranteed Protection: This unit is backed by our one-year replacement warranty.
- ✔ No Core Charge: Keep your old part without the hassle or expense of returning a core.
Expert Insight: Many transmission issues are misdiagnosed as internal mechanical failures, leading to costly and unnecessary repairs. The T42 TCM is the electronic ‘brain’ of your 4-speed automatic. When it fails, it sends confusing signals that mimic a bad transmission. Our VIN-specific programming ensures this new brain communicates flawlessly with your HHR’s engine and other systems from the moment you plug it in, often resolving complex shifting problems that seemed purely mechanical.
By replacing your old unit with this dependable Programmed 2006-2011 HHR Transmission Control Module, you’re not just buying a part—you’re investing in peace of mind and restoring the reliability of your vehicle for the miles ahead.
Frequently Asked Questions
Do I need to get this programmed by a dealer?
No. This module comes pre-programmed to your vehicle’s VIN. It is ready for installation right out of the box, with no additional flashing or dealership programming 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) near the strut tower or under the air cleaner box.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the underlying issue causing the P0700 code (like a solenoid circuit fault), you should always diagnose any other codes that are present to ensure a complete repair.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old part back, which simplifies the repair process for you.
What does a Transmission Control Module do?
The TCM is the computer that controls all electronic functions of your automatic transmission. It reads data from various sensors to manage gear shifting, fluid pressure, and torque converter operation for optimal performance and fuel efficiency.
How difficult is the installation?
For someone with basic mechanical skills, installation is straightforward and usually takes under an hour. It involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. We recommend using a scan tool to clear any stored codes after installation.