Infiniti QX56 2011–2015 — technical service bulletin
Bulletin ITB14054 · NHTSA communication 10192476 · issued Nov 20, 2014
Technical service bulletin
communication type
Equipment
component
2011–2015
model years
5
vehicle entries
Official summary
SERVICE INFORMATION If the auto back door will not operate automatically (operates only in manual mode), first note some conditions that may cause this: * Is DTC B2420 set as "current" in the back door control unit? If the auto back door "CLOSE SW" (close switch) state does not change from ON to OFF after 3 attempts to close the auto back door, B2420 will be set and the auto feature will be disabled. Please see this bulletin for further details.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.