How about switching out the radio for a used Toyota Entune radio with the satellite and navigation built in. Has anyone tried switching out the radio that came with the Corolla with a used upgrade Entune radio?
I have a 2017 Toyota corolla SE. Occasionally while using the Cruise control, the RPMs will certainly increase from about 1800 RPMs to 4200 RPM’s. The RPM’s will drop down again to below 2000 RPM’s if I tap the brake and disengage the Cruise control. This might occur 2-4 times while using...