Is Your Chevy HHR Shifting Erratically?
If you’re experiencing harsh shifts, delayed gear engagement, or your 2006-2011 Chevrolet HHR is stuck in limp mode, a failing Transmission Control Module (TCM) is the most likely culprit. These symptoms not only make driving stressful but can also lead to more significant transmission damage if ignored. This pre-programmed T42 Transmission Control Module is the definitive solution, designed to restore your vehicle’s original performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty TCM can trigger a host of frustrating issues and diagnostic trouble codes (DTCs). If you’re noticing any of the following, it’s time for a replacement:
- Abrupt, harsh, or jerky shifting between gears
- The vehicle feels stuck in one gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- DTCs are present, such as P0700, P0750, or other solenoid-related codes
- Failure to upshift or downshift correctly
- Noticeable decrease in fuel economy
This Programmed T42 Transmission Control Module is engineered to be a direct-fit, plug-and-play fix. By programming the unit to your vehicle’s specific VIN before shipping, we eliminate the need for an expensive trip to the dealership for additional programming. It’s ready to install right out of the box, resolving communication errors and restoring the precise, smooth shifting you expect from your vehicle.
Features & Benefits
- ✔ VIN-Programmed for You: We program the module to your vehicle’s VIN, ensuring it works perfectly upon installation with no extra steps.
- ✔ Restore Smooth Performance: Eliminates harsh shifting and gear-hunting by restoring precise electronic control over your transmission.
- ✔ Solve Annoying Warning Lights: A direct fix for common transmission-related check engine lights and DTCs, helping you pass inspection.
- ✔ Plug-and-Play Installation: Designed for a straightforward installation, often taking less than 30 minutes with basic tools.
- ✔ Built to OEM Standards: Engineered for reliability and durability, providing a long-lasting solution to your transmission problems.
- ✔ No Core Charge: Keep your old part without the hassle or expense of returning a core.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
In modern vehicles like your HHR, the TCM isn’t just a simple controller; it’s a computer that communicates with the engine, brakes, and other systems. VIN programming loads the exact software and calibrations your specific vehicle needs to operate correctly. An unprogrammed module simply won’t work, leading to the same errors you’re trying to fix. Our service saves you the time, cost, and headache of dealer-level programming, delivering a part that is truly ready to go.
Don’t let a faulty TCM dictate how your vehicle drives. By replacing your old unit with this fully updated and Programmed T42 Transmission Control Module, you are making a smart investment in your vehicle’s reliability and drivability. It’s the ideal solution for DIY mechanics and professional shops alike, covering a wide range of GM vehicles from work trucks like the Silverado to daily drivers like the Cobalt and Impala.
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) and the latest GM software onto the module before we ship it. This ensures the TCM has the correct settings for your specific engine, transmission, and options, making it a true plug-and-play part.
Do I need to take my car to a dealer after installation?
No. Because the module arrives pre-programmed to your VIN, you do not need to visit a dealership or a shop with advanced scan tools for additional programming. Simply install the part, and you’re ready to go.
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, near the strut tower. Always disconnect the battery before beginning the replacement.
Will this module 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 root cause (like an internal TCM failure), it’s important to ensure other issues like faulty solenoids or wiring are not present. In many cases, replacing a bad TCM will clear the P0700 code and its related specific codes.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep your old module without any extra fees or the need to ship it back to us.