Welcome!
When you say "turn the heat up," do you mean the temperature? Or the fan speed?
If the fan speed, then I'd guess the fan unit is going out -- bearings, or maybe it got out of balance. New Jeep blower motors are about $205 -- Item 9 here:
Air Conditioner and Heater Units for 2015 Jeep Renegade | Mopar Factory Parts
I doubt you're going to find any aftermarket equivalents...
But if your dealer is going to cover it... 👍
When you say "turn the heat up," do you mean the temperature? Or the fan speed?
If the fan speed, then I'd guess the fan unit is going out -- bearings, or maybe it got out of balance. New Jeep blower motors are about $205 -- Item 9 here:
Air Conditioner and Heater Units for 2015 Jeep Renegade | Mopar Factory Parts
I doubt you're going to find any aftermarket equivalents...
But if your dealer is going to cover it... 👍