WenmarOpen by Wenmar Pro

Service bulletins for the 2012 Chevrolet Volt

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1848 on file from NHTSA, as of 2026-10-19.

About P0300 on the 2012 Chevrolet Volt: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

By topic

Only bulletins with trouble code: P0300 are shown. Show all

Bulletins, newest first
PIP5628G2023-09-18. Service bulletin. ENGINE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP5628F2023-05-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP5628E2023-03-13. Service bulletin. EQUIPMENT:ELECTRICAL:ACCESSORY GENERATOR:OUTLETS/RECEPTACLE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP5628E2022-01-24. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP5628C2020-11-16. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP5628B2020-06-15. Service bulletin. ENGINE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP56282019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIP3333C2018-05-07. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent engine misfire and a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0300, P0301, and/or P0304. Technician will need to follow published Service Information diagnostics first. If the Service Information diagnostics do not isolate a cause for this concern, inspect the inside of the fuel rail and/or fuel tank for fuel contamination. f fuel contamination is present, refer to the "Fuel System Cleaning" procedure in Service Information. Dealer will need to advise the customer to only use fuel from high quality high volume Top Tier fuel stations.
PIP5201B2018-03-12. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles that may have misfires or rough running on cold start up. Technician may find a Diagnostic Trouble Code P0300. Technician will need to use a scan tool and observe Crankshaft Position Re-sync Counter parameter. The Re-sync Counter parameter should remain at 0 during all operating conditions, and while manipulating the related harnesses and connectors between the crankshaft position sensor and the Engine Control Module. Technician will need to inspect for water intrusion in related connectors, terminals, and components. Tech will need to bring the vehicle up to engine coolant temperature that was stored when Diagnostic Trouble Code P0300 was set. After the engine coolant temperature is up to temperature technician will need to perform compression and cylinder leakage and record the readings. Technician should also verify correct fuel system pressure, inspect the heated oxygen sensors for contamination from fuel, silicon, or the incorrect use of room temperature vulcanization silicone sealant, and inspect the spark plugs for incorrect heat range, coolant or oil fouling, carbon tracking, cracks or insulator fractures at the tip. Technician should also Test for coolant contamination into the cylinders.
PIP5201A2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that may have misfires or rough running on cold start up. Technician may find a Diagnostic Trouble Code P0300. Technician will need to use a scan tool and observe Crankshaft Position Re-sync Counter parameter. The Re-sync Counter parameter should remain at 0 during all operating conditions, and while manipulating the related harnesses and connectors between the crankshaft position sensor and the Engine Control Module. Technician will need to inspect for water intrusion in related connectors, terminals, and components. Tech will need to bring the vehicle up to engine coolant temperature that was stored when Diagnostic Trouble Code P0300 was set. After the engine coolant temperature is up to temperature technician will need to perform compression and cylinder leakage and record the readings. Technician should also verify correct fuel system pressure, inspect the heated oxygen sensors for contamination from fuel, silicon, or the incorrect use of room temperature vulcanization silicone sealant, and inspect the spark plugs for incorrect heat range, coolant or oil fouling, carbon tracking, cracks or insulator fractures at the tip. Technician should also Test for coolant contamination into the cylinders.
PIP52012017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This Preliminary Information communication provides information to the technician about vehicles that may have misfires or rough running on cold start up. Technician may find a Diagnostic Trouble Code P0300. Technician will need to use a scan tool and observe Crankshaft Position Re-sync Counter parameter. The Re-sync Counter parameter should remain at 0 during all operating conditions, and while manipulating the related harnesses and connectors between the crankshaft position sensor and the Engine Control Module. Technician will need to inspect for water intrusion in related connectors, terminals, and components. Tech will need to bring the vehicle up to engine coolant temperature that was stored when Diagnostic Trouble Code P0300 was set. After the engine coolant temperature is up to temperature technician will need to perform compression and cylinder leakage and record the readings. Technician should also verify correct fuel system pressure, inspect the heated oxygen sensors for contamination from fuel, silicon, or the incorrect use of room temperature vulcanization silicone sealant, and inspect the spark plugs for incorrect heat range, coolant or oil fouling, carbon tracking, cracks or insulator fractures at the tip. Technician should also Test for coolant contamination into the cylinders.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.