Chrysler Pacifica inaccurate speedometer reading and erratic climate control blowing hot and cold on Chrysler Pacifica

Some Chrysler Pacifica owners report experiencing issues such as inaccurate speedometer readings and erratic climate control. These problems may stem from a broken speed sensor or speedometer, with common causes including a faulty vehicle speed sensor (VSS) or electrical issues. Additionally, after changing the auxiliary battery, some owners find that the climate control system becomes unresponsive, unable to set to "Auto," and stuck toggling between "Hi" and "Lo" temperatures. Reports also indicate that the climate control system may display incorrect information, such as showing 0 kW when it is actually on high. In some cases, turning off the radio can cause the central display to go black, even though the 'comfort system' continues to operate normally. It is recommended that owners experiencing these issues have their vehicle inspected by a qualified mechanic or dealership for proper diagnosis and resolution.