Jeep Grand Cherokee 2005–2006 — technical service bulletin
Bulletin 1803805 · NHTSA communication 10018576 · issued Dec 16, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005–2006
model years
3
vehicle entries
Official summary
Flash: engine start and drive ability at altitude/brake switch dtc p0504. *ak
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.