P2711 Code Definition
P2711 Unexpected Mechanical Gear Disengagement
What Does the Engine Code P2711 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 "11" is DTC number. OBD2 Diagnostic Trouble Code P2711 means that Unexpected Mechanical Gear Disengagement has been detected.
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How Serious Is the Code P2711?
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.