Ford Mustang 2020–2021 — technical service bulletin
Bulletin TSB 21-2155 · NHTSA communication 10194436 · issued May 18, 2021
Technical service bulletin
communication type
Structure
component
2020–2021
model years
2
vehicle entries
Official summary
Some 2020-2021 Mustang Shelby GT500 vehicles may exhibit a cracking on the hood inner panel. The crack is a cosmetic condition, not a structural concern. This may be due to a variation in production of the hood. To correct the condition, follow the Service Procedure to repair the hood crack.
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.