P278E Code Definition
P278E Kick Down Switch Circuit Intermittent/Erratic
What Does the Engine Code P278E Mean?
Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled OBD-II (OBD2) DTC. "7" in the third character position in a DTC indicates that the transmission is experiencing a malfunction. The last two characters "8E" is DTC number. OBD2 Diagnostic Trouble Code P278E means that Kick Down Switch Circuit Intermittent/Erratic has been detected.
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How Serious Is the Code P278E?
For now, this issue is not serious. Carly recommends you to check this issue on a regular basis and check if it gets worse later on.