Service bulletins for the 2020 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.
402 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Transfer case are shown. Show all
| SSM 51821 | 2023-08-10. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; POWER TRAIN. Some 2020-2021 Explorer/Aviator/Police Interceptor Utility vehicles equipped with AWD may exhibit a binding or shudder sensation while turning and/or while accelerating from low speeds. The concern may also be described as a grinding and/or chatter noise. If the Workshop Manual (WSM) leads to replacement of the rear axle, inspect the differential for damage and differential fluid for metallic chunks in the fluid. Note that some metallic flake in the fluid and/or discoloration is normal and the rear axle should not be replaced for it. If no damage is found to the rear differential, it is not recommended to replace the rear axle assembly. Instead, refer to the Symptom Charts in WSM, Section 307-07A for further diagnosis of the transfer case. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.