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Hummer H3For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.
Hi folks, bought a 2007 hummer h3 3.7 last week with these issues. None of the 4wd lights turn on and just flashes once when trying to engage. The vehicle is in limp mode and takes a long time to pickup and start moving. Also unable to turn off headlights even with the key out and car locked. Please see attached OBD codes. Please help, don't know where to start. Thank you.
h3 3.7L (2007) in limp mode
