Well as the title says, my heat/ac will only work on setting 3 and 4. I am looking to fix the problem on my own and not take it to the dealership. I know someone here will have the answer for me. Thanks in advance.

 

you need a blower motor resistor most likley its located under the passenger side dash behind the glove box just open the glove box and then push in the sides so it drops all the way down then you will see a connector in front of you with 2 screws in it THATS IT its easy to put in only 2 8mm screws gets it out then disconnect the connector and put the new one back in the same way that should do it if you have questions let me know

 

Thank you. That will be on my project list for the weekend.