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Service bulletins for the 2024 Ford Bronco

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

135 on file from NHTSA, as of 2026-10-19.

About P0304 on the 2024 Ford Bronco: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P0304 are shown. Show all

Bulletins, newest first
TSB 26-22102026-06-05. Service bulletin. POWER TRAIN; ENGINE. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: * Engine misfire condition * Illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0301, P0302, P0303, and/or P0304 stored in the powertrain control module (PCM)
SSM 538692025-06-11. Service bulletin. SUSPENSION; WHEELS. Some 2021-2024 Bronco vehicles built on or before 01-Jan-2025 equipped with a 2.3L EcoBoost engine and 10R60 automatic transmission may exhibit diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, and P0304 and may be accompanied by a buck/jerk sensation while driving between 35-55 mph (56-89 km/h) in gears 7-10. If the condition remains after normal engine misfire diagnostics and associated repairs have been performed, the condition may be related to driveline torsional vibration induced by the rear wheels and/or rear axle assembly. The driveline torsional harmonics/vibrations are incorrectly identified by the misfire monitor as an engine misfire. Perform standard road force wheel balancing of all four tire and wheel assemblies and retest. If the condition continues to occur, replace the ring and pinion gearset in the rear axle. For claiming, use causal part 4209 and applicable labor operations found in Section 04 of the Service Labor Time Standards (SLTS) Manual.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.