Temperature blend and recirculation doors commonly fail, which can cause the AC modes not to change or the temperature to be different on the left and right sides. If replacing blend air doors, a recirculation door, a door link, or a sub-assembly housing, new heating, ventilation and AC (HVAC) sub-assemblies are available that improve reliability.
2012 Jeep Grand Cherokee Problem Reports
Most Reported 2012 Jeep Grand Cherokee Problem Reports
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When normal alignment practices do not bring components into the alignment specifications, offset upper ball joints are available.