{"vehicle":{"id":"2018_jeep_grand-cherokee","year":2018,"make":"Jeep","model":"Grand Cherokee"},"code":"P0299","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10229751,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-17","date":"2022-12-09","document_id":"S2218000022","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Perceived Low Power/Acceleration Lag, And/Or Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P0299 Turbocharger Underboost And/Or P026D ? Fuel Injection Quantity Higher Than Expected, Set.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229751-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229751-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10229751"},{"nhtsa_id":10221886,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2020-08-26","document_id":"1806720","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. 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:P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. P0299 - Turbocharger Underboost Condition. The following software enhancement is available:Calibration to correct the On-Board Diagnostic (OBD) system?s inability to detect and set DTCP0420 - Catalyst Efficiency (Bank 1)when the Diesel Oxidation Catalyst (DOC) is missing.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10221886-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10221886-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221886"},{"nhtsa_id":10180276,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-28","date":"2020-08-26","document_id":"18-067-20","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. 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:P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. P0299 - Turbocharger Underboost Condition. The following software enhancement is available:Calibration to correct the On-Board Diagnostic (OBD) system?s inability to detect and set DTCP0420 - Catalyst Efficiency (Bank 1)when the Diesel Oxidation Catalyst (DOC) is missing.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180276-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180276-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10180276"}],"url":"https://open.wenmarpro.com/makes/jeep/grand-cherokee/2018/bulletins?code=P0299"},"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/2018/codes/P0299","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."]}