Service bulletins for the 2020 Chevrolet Tahoe
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.
855 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Electrical system are shown. Show all
| 19NA010 | 2019-08-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Information on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Has Rotational Feature that Allows for Adjusting of the Angle of the HUD Image. |
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| PIT5448E | 2019-08-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time. |
| 100845001G | 2019-07-29. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish. |
| 060847001O | 2019-07-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.