Service bulletins for the 2018 Chevrolet Silverado
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.
1747 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
| PIT5350A | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This Preliminary Information communication advises the technician that there have been some reports that the current engine hours are not correct and display 0.0. Technician will need to program the Instrument Panel Cluster using Service Programming System. |
|---|---|
| PIP5151D | 2019-04-08. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. After the fuel system is cleaned out test the fuel using the latest version of PIT3173. |
| PIP5481A | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Code P026A. The owner's manual advises not to drive above 45 MPH with a snowplow installed. However, GM Engineering is aware of the concern and is investigating. |
| PIP5487A | 2019-04-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. This Preliminary Information communication advises the technician on the steps to diagnosing the concern and the repair. Customer has Warning Lamps and/Or coolant leaks present. |
| PIP5370B | 2019-04-08. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This Preliminary Information communication provides information to the technician that some vehicle may have an “ Exhaust Fluid Quality Poor ” on the Driver Information Center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination. Technician should use Service Information for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tool J26568 or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing. |
| 17309 | 2019-04-08. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. 17309 - Service Update. On certain vehicles equipped with a Duramax diesel engine (RPO L5P), DTC P2002 may be disabled causing a cracked or inoperative diesel particulate filter to go undetected. The customer may see black smoke exiting the tail pipe.Dealers are to reprogram the engine control module. |
| PIP5541A | 2019-04-08. Service bulletin. POWER TRAIN; EQUIPMENT; ENGINE. This Preliminary information communicates to the dealer technician using the PICO scope will aid in determining if the if the engine or transmission is root cause of a vibration or shudder concern. |
| PIP5427B | 2019-04-08. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES; ENGINE. This Preliminary Information communication provides information to the technician about vehicle that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P2635, U0074 and or U18A2. Technician will need to follow published diagnostics for Diagnostic Trouble Codes U0074 would take priority over U18A2 if both set before addressing DTC P2635. |
| PIP3119P | 2019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. |
| 18NA334 | 2019-04-08. Service bulletin. ENGINE. This informational bulletin provides information on Perceived Longer Crank, Misfire, Hesitation Feel and/or Surge conditions of the new L5P 6.6L Diesel Engine. |
| 18NA334 | 2019-04-01. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on Perceived Longer Crank, Misfire, Hesitation Feel and/or Surge conditions of the new L5P 6.6L Diesel Engine. |
| 18NA334 | 2019-03-25. Service bulletin. ENGINE. This informational bulletin provides information on characteristics of the new engine versus the old engine. |
| PIE0478A | 2019-03-25. Service bulletin. ENGINE AND ENGINE COOLING. This engineering informational bulletin is requesting information for a picture of debris on the bore of a throttle body. |
| 17NA051 | 2019-03-18. Service bulletin. ENGINE. This informational bulletin provides information on High Oil Pressure during Initial Start of Vehicle is considered a normal characteristic and no repairs should be completed for this condition. |
| 19NA011 | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to program the ECM if found to be the cause of the customers concern. |
| PIC5650F | 2019-03-18. 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. |
| PIP5212B | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Technician should replace the head gasket if they are found installed backwards. |
| PIP5503A | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates to the dealer additional information on checking for the engne crankcase being overfull on oil causing an engine vibration concern. The technician is advised to inspect for contaminnants and adjust the engine oil level as needed. |
| PIP5540B | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance. |
| PIP5565B | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This Preliminary information communicates to dealer technicians to refer to service update bulletin N182179090 for 2018 model vehicles and to use labor operation 4029959 Emissions - Customer Concern Not Duplicated (CCND) for 2017 model year vehicles with DTC P140B setting. |
| PIP5572B | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This Preliminary information communicates to dealer technicians to refer to service update bulletin N182179090 for 2018 model vehicles and to use labor operation 4029959 Emissions - Customer Concern Not Duplicated (CCND) for 2017 model year vehicles with DTC P140B setting. |
| PIP4925B | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools. |
| PIP5540D | 2019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance. |
| PIP5628 | 2019-03-11. 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 |
| PIT5391E | 2019-03-11. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that have a no crank or a start and then immediate stall, Service Engine Soon Malfunction Indicator lamp may not be on when the ignition is in the run position. Technician may find Diagnostic Trouble Codes P0513 and or P262B may also be set. Technician will pulled the driver sill plate and inspect the wiring for damaged or corroded circuits. Technician will repair any damaged or corroded circuits. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.