Cadillac Escalade 2021–2026 — technical service bulletin
Bulletin PIT6477C · NHTSA communication 11033753 · issued Jun 5, 2026
Technical service bulletin
communication type
Unknown / Other
component
2021–2026
model years
58
vehicle entries
Official summary
This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
Vehicles covered
- 2021 Cadillac Escalade
- 2022 Cadillac Escalade
- 2023 Cadillac Escalade
- 2024 Cadillac Escalade
- 2025 Cadillac Escalade
- 2026 Cadillac Escalade
- 2021 Cadillac Escalade Esv
- 2022 Cadillac Escalade Esv
- 2023 Cadillac Escalade Esv
- 2024 Cadillac Escalade Esv
- 2025 Cadillac Escalade Esv
- 2026 Cadillac Escalade Esv
- 2025 Cadillac Escalade IQ
- 2026 Cadillac Escalade IQ
- 2026 Cadillac Escalade Iql
- 2022 Chevrolet Silverado 1500
- 2023 Chevrolet Silverado 1500
- 2024 Chevrolet Silverado 1500
- 2025 Chevrolet Silverado 1500
- 2026 Chevrolet Silverado 1500
- 2024 Chevrolet Silverado EV
- 2025 Chevrolet Silverado EV
- 2026 Chevrolet Silverado EV
- 2021 Chevrolet Suburban 1500
- 2022 Chevrolet Suburban 1500
- 2023 Chevrolet Suburban 1500
- 2024 Chevrolet Suburban 1500
- 2025 Chevrolet Suburban 1500
- 2026 Chevrolet Suburban 1500
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
- 2023 Chevrolet Tahoe
- 2024 Chevrolet Tahoe
- 2025 Chevrolet Tahoe
- 2026 Chevrolet Tahoe
- 2022 GMC Hummer EV Pickup
- 2023 GMC Hummer EV Pickup
- 2024 GMC Hummer EV Pickup
- 2025 GMC Hummer EV Pickup
- 2026 GMC Hummer EV Pickup
- 2024 GMC Hummer EV SUV
- 2025 GMC Hummer EV SUV
- 2026 GMC Hummer EV SUV
- 2024 GMC Sierra EV
- 2025 GMC Sierra EV
- 2026 GMC Sierra EV
- 2021 GMC Yukon
- 2022 GMC Yukon
- 2023 GMC Yukon
- 2024 GMC Yukon
- 2025 GMC Yukon
- 2026 GMC Yukon
- 2021 GMC Yukon XL
- 2022 GMC Yukon XL
- 2023 GMC Yukon XL
- 2024 GMC Yukon XL
- 2025 GMC Yukon XL
- 2026 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.