Cadillac Escalade 2019–2021 — technical service bulletin
Bulletin 21-NA-077 · NHTSA communication 10214502 · issued Jun 9, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
35
vehicle entries
Official summary
This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
Vehicles covered
- 2019 Cadillac Escalade
- 2020 Cadillac Escalade
- 2021 Cadillac Escalade
- 2019 Cadillac Escalade Esv
- 2020 Cadillac Escalade Esv
- 2021 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 3500
- 2021 Chevrolet Silverado 3500
- 2019 Chevrolet Suburban
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2021 Chevrolet Suburban 1500
- 2019 Chevrolet Tahoe
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2019 GMC Yukon
- 2020 GMC Yukon
- 2021 GMC Yukon
- 2019 GMC Yukon Denali
- 2019 GMC Yukon XL
- 2020 GMC Yukon XL
- 2021 GMC Yukon XL
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.