Toyota Camry Heat on the drivers side but no heat out of the passenger side vent!!

[@MustangJimmy816]

Same for a 2012 Camry hybrid?

[@DLMGarage]

should be if it has the same heater core setup The process is what is the same on all vehicles.

[@donk499]

I'm confused. How can the heater core cause this issue, the one heater core feeds the whole system. I suppose the heater core could be designed to have two compartments, right and left. Who knows, don't argue with success! I would be afraid of popping that heater core with the compressed air/high pressure water/CLR, but that is just my luck. My 09 has 219K miles, have had to replace that cheesy rusted/tin power steering return line twice due to leaks. I never qualified for the engine rebuild, punished for caring for it too well, didn't burn enough oil then. But, now she is starting to use oil, time for a new(er) car I guess...

[@DLMGarage]

some passages get clogged causing coolant to not flow through them