Jeep Grand Cherokee 2026 — warranty extension
Bulletin 112899 · NHTSA communication 11033968 · issued Jun 12, 2026
Warranty extension
communication type
Engine
component
2026
model years
2
vehicle entries
Official summary
D-26-13 Rev. D Claim Submission for Hurricane Spark Plug Repair
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.