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Old 12-31-2002, 02:49 PM
alpha alpha is offline
Hummer Veteran
 
Join Date: Dec 2002
Location: Orange County, CA
Posts: 28
alpha is off the scale
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I just ran mine to CO Springs from Newport Beach CA, and got a service Suspension light in Aspen Vail area at top of pass. Turns out (as the CO Springs dealer said) the truck never had a high altitude software update and should have. They figure the low density air caused a sensor to over work and blow out (we were at 12.5K feet at one point) they replaced the sensor and did the update and no problems since.
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