Jeep Wrangler 2018–2021 — technical service bulletin

Bulletin S2023000020 · NHTSA communication 10221160 · issued Apr 23, 2021

Technical service bulletin

communication type

Structure

component

2018–2021

model years

vehicle entries

Official summary

Tick Noise From A-pillar Front Power Top Side Rail

Vehicles covered

2018 Jeep Wrangler
2019 Jeep Wrangler
2020 Jeep Wrangler
2021 Jeep Wrangler

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.