I just changed my hot and cold blend door motor, the dealer Said I need to bring it into them to recalibrate is this true or false how can I do this on my own

a 100 % none engine pure AIR distrabution problem.
called DAMPERS, up 3 or 4 or 5 of them,or more.
blend doors (hot to cold)
temp
mold
recirculate/fress air
the service manual shows all that tests for that, including hand turned
damper shafts to prove 2 things, not stuck and does full range
the the actuator , motor servo test, even just looklng at them work or fail, is the test./
next time buy real Chrysler parts, not poor clones)

see HVAC here

https://eautorepair.net/Marketing/Default.asp

learn to remove the blend actuator and turn the splined hinge shaft by hand this is the acid test.
if that works, controls are bad for sure or, bad/dead/wrong actuator backwards to controls bad..
learn to buy parts from the dealer, as vast clones made for here are pure trash. SMP is ok , some . seen at rockauto.com

it depends on what model and what options your Journey is equipped with. if it has a dual zone control climate control, it sounds like the blending actuators are not aligning properly or the blend doors are not adjusting to cooperate with the main climate control system. the temp. of the vehicle is controlled by Blend doors in the h/vac system that is thereby controlled by the body control module of the vehicle. the module is a computer that controls all functions within the body of the vehicle. the module should have problem codes that should isolate the area that needs attention.
the body module controls the blend doors in the h/vac system, the doors that open and close in the vents by the heater core that controls the temperature that is ultimately expelled the correct temperature that comes out of the vents. if the settings on both the drivers and passengers control knobs for example are on cold, and one side is hot and one side is cold, then there is a problem at the module level or most likely the blend door is the problem. most likely the actuator ( the motor that runs the blend door and controlled by the module) is not operating properly. your dealer will hook the module up to a diagnostic computer and retrieve the codes ( if any) and isolate which blend door is not working correctly.

usually its just a blend door actuator that needs replacing. to rule out heater core issues, if there is no excessive condensation on the windows and coolant on the carpet, then most like it's a module or blend door issue. if it's a single mode climate control, the same is true but puzzling b/c in that case, both passenger and driver h/vac system is designed to push out a consistent temp for both side without the option of variation on either side. again most likely a blend door issue.

hope this helps

Air Temperature Control Blend Door Failure No Heat or no AC (dependes on where door sticks)

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.

Air Temperature Control Blend Door Failure No Heat or no AC (dependes on where door sticks)

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.

talking from experience there can be 2 problems , either the "blend motor" on the driverside of the air register has failed or the door inside the register broke i would say 9 out of 10 the "blend motor" is the problem , on a scale of 1-10 its about an 8 to change the dealer refers to this part as a blend door actuator

Do you mean that the heater blows hot air until you start off driving? If so, then you need to check your blend door, it is probably broken, it is not really easy to change, it requires removing the entire dash. At the center bottom of your dash you will find a plastic cover, remove it and look in the center you will find a stepping motor, probably white in color, it will have an electrical plug in it, this motor controls the blend door. Remove three screws and remove the motor, then hook it up again and turn your temperature control from cold to hot, does the motor move? If it does then check the drive on the blend door (where the motor goes) can you rotate the blend door itself, if not the door is broken. The R&R procedure is extensive for the blend door. I would recommend a good shop in your area for repair of this door, but the test to determine that the door is broken is fairly simple. Hope this helps, let me know.

You need to replace the "blend" door actuator motor on the pass side. I recommend getting that from your nearest gm dealer to ensure proper fit. When you adjust the air from cold to warm to hot, the blend door moves to direct the right amount of cold, or warm, or hot air your desire on that side of the vehicle

most likely needs a LH (bottom) temp actuator. Located in the center of the dash on the bottom, you have to remove the hush panel on the rh side of the truck

It sounds like you need to go to the shop. the blend doors control the air flow, heat, and distribution. There are about 6 to 7 motors in all. They most likely need to be recalibrated. There is also a possibility the Climate Control Module Software will need to be upgraded. There is a small chance that there is a bad blend door motor that is crashing the communication link between the motors and the module.

Either way it goes only the dealer, or mabey a very heavily invested independent shop.

Hope this helps.

Did you check the blend door motor? they will break and cause the door to not move. the dealer can run it thru a mode/blend door test. They just try to move the door with the obd computer they can calibrate them as well.