Ford F-150 2021–2023 — technical service bulletin
Bulletin 24N04 · NHTSA communication 11008403 · issued Oct 1, 2024
Technical service bulletin
communication type
Unknown OR Other
component
2021–2023
model years
5
vehicle entries
Official summary
In some of the affected vehicles, the printed circuit board within the EGHR actuator housing may fail due to water ingress, causing the EGHR valve to become stuck in position, and illuminating the Malfunction Indicator Light (MIL). In addition, for F-150 only, the EGHR coolant inlet port may break and cause engine coolant to leak out of the vehicle’s cooling system
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.