Service bulletins for the 2020 Chevrolet Blazer
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.
854 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
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Only bulletins with component: Trailer hitch are shown. Show all
| N202318400 | 2021-03-01. Service bulletin. EQUIPMENT; TRAILER HITCHES. Service Update Bulletin. In certain vehicles, the rear trailer hitch cover may be warped and loose. A rattling noise may occur, and in some cases, the cover may fall off of the vehicle. Dealers are to inspect the rear bumper fascia trailer hitch cover and replace if necessary. |
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| N202318400 | 2021-02-22. Service bulletin. TRAILER HITCHES. Service Update Bulletin. In certain vehicles, the rear trailer hitch cover may be warped and loose. A rattling noise may occur, and in some cases, the cover may fall off of the vehicle. Dealers are to inspect the rear bumper fascia trailer hitch cover and replace if necessary. |
| N202318400 | 2021-02-16. Service bulletin. BACK OVER PREVENTION; TRAILER HITCHES. Service Update Bulletin. In certain vehicles, the rear trailer hitch cover may be warped and loose. A rattling noise may occur, and in some cases, the cover may fall off of the vehicle. Dealers are to inspect the rear bumper fascia trailer hitch cover and replace if necessary. |
| N202318400 | 2021-02-01. Service bulletin. EQUIPMENT; TRAILER HITCHES; EQUIPMENT ADAPTIVE/MOBILITY. Service Update Bulletin. In certain vehicles, the rear trailer hitch cover may be warped and loose. A rattling noise may occur, and in some cases, the cover may fall off of the vehicle. Dealers are to inspect the rear bumper fascia trailer hitch cover and replace if necessary. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.