Jeep Grand Cherokee 2014 — technical service bulletin
Bulletin 1804514 · NHTSA communication 10231995 · issued Nov 21, 2014
Technical service bulletin
communication type
Electrical System
component
2014
model years
2
vehicle entries
Official summary
P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1
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.