My two week old Terrain (SLE 2, AWD, I4) seems to have developed a mind of its own. Driving along the highway the "engine hood open" warning light came on then wend out, came on again about 10 minutes later then once again went out. When I reached home and shut the vehicle down, after about 1/2 hour the burglar alarm when off, ran for about 30 seconds (no person had touched the vehicle) then shut down. About 1/2 hour later, off it went again with exact same 30 second time frame. Did this 4 times then seemed to be ok. Left it overnight, went out driving today and same "engine hood warning". Fingers crossed, the alarm has not gone off but I am not holding my breath. As it is Sunday there is very little I can do but will try and get it into the dealer (if he is not too busy). Any suggestions as to what may be going on. Computer problem? Short somewhere?