Service bulletins for the 2021 Chevrolet Suburban
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.
1440 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Transmission and driveline are shown. Show all
| PIT5762A | 2020-09-14. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues with modules Engineering is working on a fix |
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| PIT5764 | 2020-09-14. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates how to shift the transmission into neutral for various service procedures. |
| PIT5762 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues with modules Engineering is working on a fix |
| PIP5738 | 2020-08-10. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 10L80 transmission has been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.