Jeep Grand Cherokee 2011 — technical service bulletin
Bulletin SB-18-025-10 · NHTSA communication 10034638 · issued Aug 31, 2010
Technical service bulletin
communication type
Electrical System
component
2011
model years
1
vehicle entries
Official summary
Jeep: driveability improvements, hard start, spark knock, etc light flashing. Involves reprogramming the powertrain control module (pcm) with new software. *pe
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.