Cadillac Escalade Esv 2019–2021 — technical service bulletin
Bulletin PIE0609A · NHTSA communication 10200156 · issued Jun 16, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
11
vehicle entries
Official summary
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a noise heard from the engine compartment, loss of charging and/or reduced alternator output.
Vehicles covered
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.