WenmarOpen by Wenmar Pro

Service bulletins for the 2019 Chevrolet Sonic

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
000601026M2019-09-23. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
19NA1042019-07-29. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
19NA1012019-07-01. Service bulletin. ENGINE. This technical bulletin provides a procedure to replace the intake manifold if diagnostics has found the Non Return Valve missing.
16NA3832019-07-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
19NA1142019-07-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This informational bulletin provides information to the tech to test the PCV for proper performance before replacing the camshaft cover to correct a MIL On w/DTC P0171.
PIP5495J2019-06-10. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no trouble found (NTF) turbochargers being returned to the WPC by informing the Service Department personnel of what inspections and/or diagnosis to perform, prior to replacing and returning a turbocharger to the WPC.
PIP4670F2019-06-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
19NA0902019-05-28. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin explains to the technician to inspect the pistons for damage and not just replace the engine assembly if the pistons are the only cause of damage.
PIE0503B2019-05-20. Service bulletin. ENGINE. This engineering information PI ends the need for information from the field on reduced engine power, DTC P0299 set.
19NA0442019-04-22. Service bulletin. ENGINE. This informational bulletin provides information on a normal engine operating condition for faster emission warm up time.
PIE0503A2019-03-25. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information PI ends the need for information from the field on reduced engine power, DTC P0299 set.
PIE05032019-03-25. Service bulletin. ENGINE AND ENGINE COOLING. This engineering informational bulletin is requesting information from the field on reduced engine power, DTC P0299 set.
PIC5650F2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
PIP5197L2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have excessive oil consumption, blue smoke from the exhaust, or a Malfunction Indicator Lamp. Technician should inspect the PVC orifice for leaking oil or drawing a vacuum at idle. If the PCV orifice external port is leaking oil or vacuum, replace the camshaft cover assembly. Technician will inspect for a missing intake manifold Non Return Valve that may have damaged the PCV orifice diaphragm. Check for the return valve if it is not visible use a long cotton swab to wipe any excess oil from the valve to validate. If the non return valve is still not visible, then intake manifold removal for inspection is required to validate. When the valve is present reinstall the intake manifold. When the valve is not present replace the intake manifold assembly.
PIP5197K2018-12-17. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have excessive oil consumption, blue smoke from the exhaust, or a Malfunction Indicator Lamp. Technician should inspect the PVC orifice for leaking oil or drawing a vacuum at idle. If the PCV orifice external port is leaking oil or vacuum, replace the camshaft cover assembly. Technician will inspect for a missing intake manifold Non Return Valve that may have damaged the PCV orifice diaphragm. Check for the return valve if it is not visible use a long cotton swab to wipe any excess oil from the valve to validate. If the non return valve is still not visible, then intake manifold removal for inspection is required to validate. When the valve is present reinstall the intake manifold. When the valve is not present replace the intake manifold assembly.
PIP5495H2018-12-17. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. The technician may find Diagnostic Trouble Codes P0299 or P0234 set. The technician is provided with a list of causes of misdiagnosis leading to returned Turbochargers with no trouble found. The purpose of this information is to reduce the number of no trouble found (NTF) turbochargers being returned to the WPC by informing the Service Department personnel of what inspections and/or diagnosis to perform, prior to replacing and returning a turbocharger to the WPC.
PIP5197J2018-11-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have excessive oil consumption, blue smoke from the exhaust, or a Malfunction Indicator Lamp. Technician should inspect the PVC orifice for leaking oil or drawing a vacuum at idle. If the PCV orifice external port is leaking oil or vacuum, replace the camshaft cover assembly. Technician will inspect for a missing intake manifold Non Return Valve that may have damaged the PCV orifice diaphragm. Check for the return valve if it is not visible use a long cotton swab to wipe any excess oil from the valve to validate. If the non return valve is still not visible, then intake manifold removal for inspection is required to validate. When the valve is present reinstall the intake manifold. When the valve is not present replace the intake manifold assembly.

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