AT 40000 MILES THE ORANGE LIGHT GOES ON: CHECK ENGINE. I DO AND FIND NOTHING LOW, MISSING, LEAKING OR SMOKING. TAKE IT TO CHEVY. MY POLLUTION CONTROL MODULE GOT WET AND IS NOW INOPERABLE. REPLACE BOARD FOR 600.00. I DON'T GO STUMP-JUMPING WITH THIS SUV. IT'S A TO AND FROM WORK CAR ONLY. REAL DISAPPOINTED WITH CHEVY OVER SOMETHING LIKE THIS. THIS IS A DESIGN FLAW. CHEVY DOESN'T GIVE A CRAP, THOUGH.