Code P1035 is not a generic OBD II diagnostic code. I see where an internet search has sent you to pages related to P0135 - a generic code for problems with the Bank 1 heated O2 sensor circuit. That is not correct! I found a blurb which indicated this code shown on your scanner (P1035) is manufacturer-specific, which means GM has its own definition for it. I couldn't find any online information for GM's use of the code. As such, you should seek help from a GM-qualified technician to diagnose and repair the problem. In the meantime, clear the code from the system and see if it returns.
2007 Acadia SLT-2, 'HiYo' Silver outside, Ebony/Titanium inside, no NAV, no HUD, no errors
Last edited by speleos; Yesterday at 12:53 AM.