Chevrolet Bolt Euv 2020–2022 — technical service bulletin
Bulletin N242437530-01 · NHTSA communication 10252968 · issued Apr 8, 2024
Technical service bulletin
communication type
Electrical System
component
2020–2022
model years
4
vehicle entries
Official summary
Service Update. Certain vehicles may have a condition in which a diagnostic trouble code (DTC) is set. IMPORTANT: If the vehicle comes in with the DTC U3620-U362E and U3630-U3636, with symptom 17 ALREADY set, go to SI and follow the published SI diagnostic/repair procedures. This field action DOES NOT apply to symptom 09. After above repairs are performed, come back to this field action to get the required warranty claim code and close this field action with labor operation 9107166. If the DTC is not set, proceed with this bulletin. Dealers are to reprogram the Hybrid Powertrain Control Module
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.