Are we the only people who still have an Avalanche? Planning to flat tow a 2013 4WD behind our 43' diesel pusher. Followed directions precisely and tested the procedure for putting it in tow neutral yesterday; today it won't start. Getting a check engine light, engine spins for several seconds but after a few seconds, stops spinning. Is there a trick to taking it from tow neutral back to drive mode?
Thank you,
Jim