Hey guys this ? is about the computer on my truck. It is a 2000 yukon xl and it has the same computer that is in my car. I tried disconnecting the battery for 30 minutes or more. It retained all of its presets. I need to reboot it to remove a message that I keep getting. I have had it scanned and it is not throwing a code even when the message is lit. The message is service 4x4. I just replaced the whole rearend and the transfer case. Trust me, the rearend on one of these is wayyyyy more expensive than the one on our cars. Anyway help is appreciated,THANX.
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