Chevrolet Bolt EV 2017–2019 — technical service bulletin
Bulletin 20NA173 · NHTSA communication 10181702 · issued Sep 3, 2020
Technical service bulletin
communication type
Electrical System
component
2017–2019
model years
3
vehicle entries
Official summary
This Technical bulletin provides a Service Procedure to correct a customer concern of a Service Vehicle Soon Light Illuminated, DTC P0534 Set.
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.