Re: have Service Air Suspension message every 2 seconds
I had the same thing when mine was new and it was a bad sensor causing the Hummer to relevel all the time. I only raise my H2 for offroading, over 40 mph? it returns the vehicle to the lower height regardless of what you're doing with the air suspension. I got the check air suspension message constantly, but it was a two hour fix under warranty to replace the sensor.
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Hummer, like nothing else
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