Actually the tow ratings Aussie posted are right in line with the tow ratings for the North American Cruze. 900 lbs in Austrialia vs. 1000 lbs in the US for a trailer that doesn't have brakes. 1300 lbs for a trailer that has brakes makes sense because it means the trailer can help stop itself. The problem in the US is that our legal system has made it impossible for GM to publish "split" numbers like this because some fool will see the 1300 lbs and think oh - I can go to 1500 safely as long as I'm careful even though their trailer doesn't have brakes. As it was OP warped a front brake rotor during the time he was towing. Whether or not this was due to towing in the heat is debatable, but if something else had failed that normally would have been covered under warranty GM would have been within their rights to deny the claim.