Compatibility tested by our community
OBD2 diagnostic scanner for Hummer
A warning light on your Hummer dashboard? With klavkarr, read fault codes and clear them after repairs yourself, without a trip to the garage.
Compatibility tested on many Hummer vehicles, from older generations to the latest models.
Which Hummer diagnostic tool should you choose?
Both read and clear fault codes. The 310 also covers ABS, airbag and ESP systems. Compare models
Why use a diagnostic scanner for your Hummer?
Tested Hummer compatibility
Every listed model has been tested by a user. Our database lists 4,601 car models, covering 12,195 versions and configurations.
Read & clear fault codes
Find out why a warning light is on and clear the code after fixing the fault, without booking an appointment.
Live data
Monitor performance and spot abnormal sensor readings, pressure or emission-control behaviour before a breakdown.
Plug straight in
Connect to the OBD2 port, with no dismantling or specialist mechanical knowledge required.
Plain-English fault codes
Fault codes explained clearly, without technical jargon or a manufacturer-specific software licence.
Updates included
New models and codes are added regularly, with no subscription.
All Hummer models compatible with our OBD2 scanner
Select your model generation to see supported warning lights and the recommended scanner.
Check the listed Hummer petrol, diesel, hybrid and electric models equipped with an OBD2 port. Available functions depend on the vehicle.
Hummer H1
1 version
Hummer H2
1 version
Hummer H3
1 version
EOBD legislation requires vehicles to be compliant from specified dates, depending on their category and market. Learn more in our introduction to OBD or the reference article on on-board diagnostics.
Most common OBD fault codes on Hummer models
Standard OBD fault codes recorded by users of our klavkarr scanners.
Where is the OBD2 port in your Hummer?
The OBD2 port is usually under the steering wheel. klavkarr plugs straight in, with no dismantling or special tools required.
Find my OBD2 portThat is the cost of a diagnostic at a garage each time a warning light comes on. With your own klavkarr, scans are unlimited and cost nothing extra; it can pay for itself from the first use.
Other compatible makes manufactured in United States
klavkarr works across makes. Explore other manufacturers.
