Jeep Grand Cherokee 2021 — technical service bulletin
Bulletin S2108000175 · NHTSA communication 10221625 · issued Jul 22, 2021
Technical service bulletin
communication type
Electrical System
component
2021
model years
1
vehicle entries
Official summary
Head Lamp Smart Lighting Module Left Or Right Locks Up After Flash, Head Lamps Will Not Turn On, Turn Signals Do Not Operate
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.