Cadillac Escalade 2020–2021 — technical service bulletin
Bulletin 21NA005 · NHTSA communication 10191213 · issued Mar 18, 2021
Technical service bulletin
communication type
Air Bags
component
2020–2021
model years
21
vehicle entries
Official summary
This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.
Vehicles covered
- 2020 Cadillac Escalade
- 2020 Cadillac Escalade Esv
- 2021 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 4500
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
- 2020 GMC Yukon
- 2021 GMC Yukon
- 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.