<prompt> Human: Hello! GF is turning in her leased Lexus soon, the car IS200 has several defects, such as the seat cooling actually produces heat instead of cool, and when the ac is on, hot air comes out of the backseat vents. Shes wondering if she should reveal those defects to Lexus, when she returns the car. I think the concern is that they will try to blame her for them, or perhaps use it against her somehow. If its not obvious, I am fairly clueless about leases, Ive always bought used myself so any other advice about what to avoid when leasing a new car would be appreciated, such as unnecessary upgrades that they typically talk you into, shell probably get another Lexus. Thanks very much!  <response>: just turn it in and say nothing 