{"vehicle":{"id":"2022_jeep_grand-cherokee","year":2022,"make":"Jeep","model":"Grand Cherokee"},"code":"P0AA1","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":5,"bulletins":[{"nhtsa_id":11028875,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-19","date":"2026-02-12","document_id":"08-065-26","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0607-00 - ECU Internal Performance. ● P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. ● P0CA6-00 - Hybrid/EV Battery Charging Current High.** ● P0B24-00 - Hybrid/EV Battery \"A\" Voltage Unstable. ● P1C5E-00 - Hybrid/EV Battery State Of Health Failed. ● P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. ● P0DAB-00 - Hybrid/EV Cell Balancing Performance. ● P0D0F-00 - Hybrid/ EV Battery Negative Contactor “A” Stuck Closed. ● P0AA1-00 - Hybrid/EV Battery Positive Contactor “A” Stuck Closed. ● P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. Customers may also experience one or more of the following: ● **Vehicle does not start.** NOTE: **The no start condition is accompanied with one or more of the following DTCs: P0DAB-00, P0607-00, P0AA1-00, P0AA4-00, P0C78-00, P0CA6-00, P0B24-00, P1C5E-00 and/or P0BBE-00. P0BBE-00 and P0B28-00 will result in a MIL for 49 days. After 49 days of the MIL, the vehicle will no longer be allowed to start.** ● Low 12V battery causing vehicle not to start. This bulletin involves updating the BPCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028875-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028875-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028875"},{"nhtsa_id":11013159,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-01-28","date":"2025-01-25","document_id":"08-018-25","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"\"Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● **P0B24-00 - Hybrid/EV Battery \"\"A\"\" Voltage Unstable. ● P1C5E-00 - Hybrid/EV Battery State Of Health Failed. ● P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. ● P0DAB-00 - Hybrid/EV Cell Balancing Performance.** ● P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. ● P0AA1-00 - Hybrid/EV Battery Positive Contactor “A” Stuck Closed. Customers may also experience the following: ● Vehicle does not start. \"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11013159-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11013159-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11013159"},{"nhtsa_id":11013152,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-01-28","date":"2025-01-15","document_id":"08-006-25","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"\"Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0B24-00 - Hybrid/EV Battery \"\"A\"\" Voltage Unstable. ● P1C5E-00 - Hybrid/EV Battery State Of Health Failed. ● P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. ● P0DAB-00 - Hybrid/EV Cell Balancing Performance. ● P0D0F-00 - Hybrid/ EV Battery Negative Contactor “A” Stuck Closed. ● P0AA1-00 - Hybrid/EV Battery Positive Contactor “A” Stuck Closed. ● P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. Customers may also experience the following: ● Low 12V battery causing vehicle not to star This bulletin involves updating the BPCM with the latest available software\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11013152-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11013152-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11013152"},{"nhtsa_id":11013008,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-01-21","date":"2025-01-14","document_id":"08-006-25","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"\"Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P0B24-00 - Hybrid/EV Battery \"\"A\"\" Voltage Unstable. ● P1C5E-00 - Hybrid/EV Battery State Of Health Failed. ● P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. ● P0DAB-00 - Hybrid/EV Cell Balancing Performance.** ● P0D0F-00 - Hybrid/ EV Battery Negative Contactor “A” Stuck Closed. ● P0AA1-00 - Hybrid/EV Battery Positive Contactor “A” Stuck Closed. ● P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. Customers may also experience the following: ● Low 12V battery causing vehicle not to start.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11013008-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11013008-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11013008"},{"nhtsa_id":10251833,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-03-18","date":"2024-01-09","document_id":"0801224","mfr_campaign":null,"component":"EXTERIOR LIGHTING; EQUIPMENT:ELECTRICAL","summary":"Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. ? P0AA1-00 - Hybrid/EV Battery Positive Contactor ?A? Stuck Closed. Customers may also experience the following: ? The vehicle will not start. This bulletin involves updating the BPCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10251833-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10251833-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10251833"}],"url":"https://open.wenmarpro.com/makes/jeep/grand-cherokee/2022/bulletins?code=P0AA1"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/jeep/grand-cherokee/2022/codes/P0AA1","note":"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.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}