Jeep Gladiator 2018–2021 — technical service bulletin
Bulletin S1821000005 Rev. · NHTSA communication 10190626 · issued Mar 11, 2021
Technical service bulletin
communication type
Power Train
component
2018–2021
model years
6
vehicle entries
Official summary
Required Updates When Changing Tire Sizes, Installing Mopar Lift Kits With Larger Tires, Manual Transmission Vehicles Setting DTC P08A6
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.