SJ - We were creeping in 4LO/rear axle locked, maybe 5 mph tops, very temporary situation before shifting back up. It wasn't exactly the clunk that concerned me, we've heard it before and understand it's normal, but this was somehow a much louder clunk, then all indicator lights went out and we got that SERVICE 4WD message. After restarting the engine, all the indicator/panel lights started working again. It seems to be running fine in 4HI and also in 4HI lock, but didn't try 4LO again. Truth is we were probably afraid to--we were on some very remote roads in the middle of the snow, not another soul in sight, although we could have used our OnStar [img]/infopop/emoticons/icon_eek.gif[/img]
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