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U3636 on the 2021 Chevrolet Bolt EV

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name U3636
N2324212612025-02-24. Service campaign. Certain 2020 – 2022 model year Chevrolet Bolt EV and 2022 model year Chevrolet Bolt EUV vehicles may have a condition in which a false diagnostic trouble code (DTC), U3636 symptom 09, is triggered. This false DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), a Reduced Propulsion message, and a charging limited to 30% State of Charge. Since this is a false DTC, it can lead to unnecessary battery pack replacements. Dealers are to reprogram the Hybrid Powertrain Control Module 2 and provide the customer with a free NACS Adapter.
N2324212612025-02-06. Service campaign. Certain 2020 – 2022 model year Chevrolet Bolt EV and 2022 model year Chevrolet Bolt EUV vehicles may have a condition in which a false diagnostic trouble code (DTC), U3636 symptom 09, is triggered. This false DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), a Reduced Propulsion message, and a charging limited to 30% State of Charge. Since this is a false DTC, it can lead to unnecessary battery pack replacements. Dealers are to reprogram the Hybrid Powertrain Control Module 2 and provide the customer with a free NACS Adapter.
N242437530-012024-04-08. Service bulletin. 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 2.
N2424375302024-04-03. Service bulletin. Service Update - Certain vehicles may have a condition in which a diagnostic trouble code (DTC), U3620-U362E or U3630-U3636, symptom 17, is triggered. This DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), Reduced Propulsion with corresponding DIC message, and a charging limited to 30% State of Charge. IMPORTANT: If the vehicle comes in with the DTC U3620-U362E or U3630-U3636, symptom 17 set, go to SI and follow the published SI diagnostic/repair procedures. 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 2.
N232421260-012023-11-14. Service bulletin. Service Update - Certain vehicles may have a condition in which a false diagnostic trouble code (DTC), U3636 symptom 09, is triggered. This false DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), a Reduced Propulsion message, and a charging limited to 30% State of Charge. Since this is a false DTC, it can lead to unnecessary battery pack replacements. Dealers are to reprogram the Hybrid Powertrain Control Module 2.
N2324212602023-11-02. Service bulletin. Service Update - Certain vehicles may have a condition in which a false diagnostic trouble code (DTC), U3636 symptom 09, is triggered. This false DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), a Reduced Propulsion message, and a charging limited to 30% State of Charge. Since this is a false DTC, it can lead to unnecessary battery pack replacements. Dealers are to reprogram the Hybrid Powertrain Control Module 2.

6 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.