Ford Bronco 2021–2022 — technical service bulletin
Bulletin SSM 50871 · NHTSA communication 10214828 · issued Jun 21, 2022
Technical service bulletin
communication type
Electrical System
component
2021–2022
model years
2
vehicle entries
Official summary
Some 2021-2022 Bronco vehicles may exhibit a Cross Traffic System/Blind Spot System Fault in instrument panel cluster (IPC). If these symptoms are encountered, inspect the wiring under the rear bumper for chaffing of the 13A409 harness close to connector C4369. If this is determined to be the cause of the issue, refer to Wiring Diagram Cell 005 for wiring repair. If no wiring issues are found, continue with normal diagnostics in Workshop Manual (WSM), Section 419-04.
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.