- Model years
- 2006–2011
- Engine options
- 3
- Make-wide fault codes
- 6,705
For the Chevrolet HHR (2006–2011), CarCoding runs on iPhone, Android, and Windows and works with an ELM327 OBD2 adapter. The HHR engine options covered by the available facts are 2.2 Ecotec 149HP, 2.4 Ecotec 172HP, and SS 2.0 Turbo 260HP. For this vehicle, CarCoding has no ECU coding data, so no ECU coding settings are changed through the app.
With CarCoding, you can read fault codes, clear fault codes, and view live data on the Chevrolet HHR through the ELM327 OBD2 adapter. The app includes 6705 manufacturer fault code descriptions. Because the HHR coding data is none, ECU coding setting changes are not available for this vehicle.
Supported coding modules
No coding modules are defined for this vehicle in CarCoding. Fault code read/clear and live data work over OBD2.
Engine options
- 2.2 Ecotec 149HP
- 2.4 Ecotec 172HP
- SS 2.0 Turbo 260HP
Fault codes for this make
There are 6,705 manufacturer fault code descriptions for Chevrolet · GMC · Holden · Buick. Open a code block and read what your code means.
Frequently asked questions
What does CarCoding do on the Chevrolet HHR?
CarCoding reads and clears fault codes and shows live data over OBD2 on the Chevrolet HHR (2006–2011). No coding modules are defined for this vehicle.
Can I read fault codes on the Chevrolet HHR?
Yes. Besides standard OBD2 engine codes there are 6,705 manufacturer fault code descriptions for this make group; you can read and clear them.
Which adapter do I need?
An ELM327-based OBD2 adapter with Bluetooth Low Energy (BLE) is all you need; the app runs on iPhone, Android and Windows and is free to download.
How do I start?
- Plug an ELM327-compatible OBD2 adapter into the car.
- Open CarCoding and connect to the adapter over Bluetooth.
- Pick the make and model — or let the VIN identify it.
- Read fault codes; on supported vehicles, open the module settings.
Related pages
Get CarCoding
Connect your ELM327 adapter, read fault codes, and browse module settings on supported vehicles.
The app is free to download.