I have a 2011 Chevy Cruze with no heat. Replaced water pump and thermostat. Flushed heater core. Still no heat. What should I do next

SINCE I DON'T HAVE ENOUGH INFORMATION I WILL HAVE TO JUST GIVE IT MY BEST ANSWER. PERHAPS THE BLOWER MOTER IN THE PASSENGER COMPARTMENT IS NOT ON. BUT IF IT DOES BLOW AIR MAKE SURE YOU FLUSHED THE HEATER CORE CORRECTLY BY TAKING OFF IT'S HOSES AND FORCING THE WATER THROUGH IT IN REVERSE OF IT'S NORMAL FLOW DIRECTION USING A WATER HOSE. IF THIS DOESN'T WORK YOU MAY ALSO HAVE A BAD DEFLECTOR MOTOR OR VACUUM DIAPHRAM IN THE DASH THAT IS NOT ALLOWING THE HOT AIR TO BE CONTROLLED INTO THE CORRECT PATHWAY TO MIX WITH THE COLD AIR. THESE DEFLECTOR DOORS OR FLAPS ARE POSITIONED EITHER MANUALLY OR ELECTRICALLY TO CONTROL THE COMFORT ZONE IN AUTOMOBILES WHICH CAN PREVENT THE MIXING OF HOT AND COLD AIR APPROPRIATELY WHICH CAN RESULT IN A CONSTANT AIR TEMPERATURE OF COLD ,HOT, OR ANYTHING IN BETWEEN. THESE DEFLECTORS ALSO CONTROL WHERE THE AIR IS TRANSFERRED INTO THE CAB WHETHER UP TO THE WINDSHIELD FOR DEFROSTING OR DOWN TO THE FLOOR BOARD TO WARM YOUR FEET.FOR THIS REASON THERE ARE USUALLY MORE THAN ONE CONTROLLING MODULE MANUAL OR ELECTRIC.

You need to check your blend door motor. Also, did you make sure to bleed all the air out of your system?