Jeep Wrangler 2021 — technical service bulletin
Bulletin S2208000139 · NHTSA communication 10223769 · issued Jul 16, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021
model years
1
vehicle entries
Official summary
Check Engine Lamp (CEL) Multiple Diagnostic Trouble Codes (DTC)
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.