25M04
Other
Certain 2021-2023 Model Year F-150 HEV Vehicles Replacement of Exhaust Gas Heat Exchanger Coolant Spigot, If Required Owner Letters
Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
25M04
Certain 2021-2023 Model Year F-150 HEV Vehicles Replacement of Exhaust Gas Heat Exchanger Coolant Spigot, If Required Owner Letters
25N05
Certain 2021-2023 Model Year F-150 HEV Vehicles Replacement of Exhaust Gas Heat Recovery Coolant Spigot In the affected vehicles, the Exhaust Gas Heat Recovery (EGHR) coolant spigot may develop a crack due to a weaker-than-intended coolant spigot having been used in a prior repair. As a result, coolant may leak out of the engine, and one or more warning lights, such as the Check Engine Light, may illuminate.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.