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Service bulletins for the 2021 Ford Explorer

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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
SSM 493802021-01-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Some 2021 F-150/Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.
SSM 493772021-01-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. Some 2020-2021 Explorer/Aviator vehicles equipped with a 3.0L EcoBoost engine and built on or before 01-Dec-2020 may exhibit inoperative air conditioning, an illuminated malfunction indicator lamp, and/or an illuminated powertrain malfunction (wrench) indicator with various diagnostic trouble codes present and a blown fuse F14. This may be due to wiring harness 14290 chaffing on the A/C compressor pulley. If chaffing is present, repair as necessary. Refer to Wiring Diagram, Cell 005 for repair procedures. Make sure that the wiring harness retainer is fully seated in the back side of the bracket on the A/C compressor to keep the harness away from the compressor pulley.
SSM 493292020-12-04. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE. Some 2020-2021 Aviator and Explorer vehicles may experience an intermittent no crank, inoperative remote start, and/or an illuminated wrench light with diagnostic trouble codes (DTCs) P07E4, B135C and/or U0103. This may be due to a loose ground G210 and/or G214. Check grounds G210 and G214, refer to the Wiring Diagram for location information. If the concern persists, or the grounds are found to be secure, refer to the Workshop Manual and applicable sections of the Powertrain Controls/Emissions Diagnosis (PC/ED) Manual for normal diagnostics.
SSM 492692020-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2021 Explorer/Aviator/Police Interceptor vehicles may exhibit a flashing powertrain malfunction (wrench) indicator while in transport mode with diagnostic trouble code (DTC) P112A stored in the powertrain control module (PCM). This may be due to excessive engine starts while the vehicle is in transport mode. To correct the condition, deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Cycle the ignition to RUN. If the concern still exists, perform normal diagnostics in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.

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