One problem related to vehicle overheat has been reported for the 2003 Infiniti G35. The most recently reported issues are listed below.
Stereo audio cut off and a/c turned on to full blast. Console controls and temperature controls stopped working. Turned off car then on to see if it would fix the issue, but once it was on the a/c turned to full blast again and controls don't work. This issue has my motor running harder bc the a/c is on causing my car to overheat while driving uphill. Ever since the controls have not worked constantly for over a year.