Jeep Grand Cherokee 2014 — technical service bulletin
Bulletin 18-064-15 · NHTSA communication 10148682 · issued Sep 24, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2014
model years
2
vehicle entries
Official summary
P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1 This bulletin involves replacing the Selective Catalyst Reduction (SCR) Catalyst assembly. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find Diagnostic Trouble Code (DTC) P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1 set in the Powertrain Control Module (PCM) memory.
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.