Service bulletins for the 2019 GMC Sierra
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.
2009 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
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Only bulletins with component: Engine are shown. Show all
| 18NA292 | 2020-01-27. Service bulletin. ENGINE. This technical bulletin provides a procedure to program the ECM if the DTC was set without engine performance issues. |
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| PIE0531A | 2020-01-21. Service bulletin. ENGINE. This engineering informational bulletin is requesting information from technicians to inspect the exhaust for any evidence of contact and/or damage and document by taking pictures before contacting the engineer listed. |
| N192219370 | 2019-12-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Certain 2019 model year Chevrolet Silverado (New Model) and GMC Sierra 1500 (New Model) vehicles, equipped with a 2.7L, 4 cyl. Turbo engine (L3B), may have a condition where the engine wiring harness could wear through in several locations. This may allow the engine harness to short to ground and/or be severed, which may lead to a check engine light, reduced engine power, no start condition or in rare cases a stall. Dealers are to wrap the wiring harness with Nylogard sleeve(s) in areas of concern. |
| PIE0544 | 2019-12-16. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This engineering informational bulletin is requesting information on vehicles with the Service Engine Soon (SES) lamp being illuminated and DTC P1467 set. |
| PIE0536A | 2019-12-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to oil leaking from the oil pan. |
| 19NA212 | 2019-12-16. Service bulletin. ENGINE. This diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away. |
| PIT5689A | 2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. |
| PIP5330D | 2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a coolant loss and/or coolant odor after driving the vehicle. Technician will need to test the cooling system looking for leaks at the outer head bolts. If coolant is found replace the head the concern is present on. |
| PIP5335D | 2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0340 and P0341 setting at times. Technician should use normal published Service Information diagnostics. If normal Service Information diagnostics does not isolate the concern, inspect for corrosion in connector X154 located on the front cover next to the vacuum pump. |
| PIP5686A | 2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates A vehicle may come into the dealer with a rough idle, lean running concern and/or air leak noise from the PCV system. Upon inspection the technician may find the SES lamp is illuminated and/or DTC?s P0171 and/or P0174 may be in active or stored history. This condition may be caused by an incorrectly installed foul air PCV tube or tube may be damaged |
| 100605002H | 2019-11-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set. |
| 010601011K | 2019-11-25. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 18NA361 | 2019-11-25. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part. |
| 16NA372 | 2019-11-25. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions. |
| N192264210 | 2019-11-12. Service bulletin. ENGINE AND ENGINE COOLING. N192264210 - Customer Satisfaction Program - Certain vehicles may have a condition in which the block heater cable function was disabled. Dealers will replace the engine block heater and cord. |
| PIP5370E | 2019-11-12. Service bulletin. ENGINE AND ENGINE COOLING. 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. |
| PIE0536 | 2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to oil leaking from the oil pan. |
| 19NA146 | 2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information for dealers/technicians on Vehicle will not start when ambient temperatures are below 13 F (-25C). |
| 19NA145 | 2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information for dealers/technicians on Vehicle stalls when using remote start when ambient temperatures are below 21 F (-6 C) and possible DTC P037C. |
| 19NA212 | 2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. This diagnostic tip provides information to the tech to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away. |
| 19NA149 | 2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P3075 Set. |
| N192257100 | 2019-10-21. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. N192257100 - EM - General Motors has decided to conduct a voluntary emissions recall involving certain 2019 Chevrolet Silverado, Suburban, Tahoe and GMC Sierra vehicles equipped with a performance air intake system. The required Vehicle Emission Control Information (VECI) label may not have been installed. Since a new label can be easily installed, and to reduce customer inconvenience, the label will be sent directly to customers of record along with the installation instructions. Customers may install the label or, if they desire, they may take the label to their dealer for installation at no charge. |
| PIT5713 | 2019-10-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates an issue with the engine wiring harness shorting at the left front cylinder head causing any of the following issues: - IPC gauges sweeping while driving - Several IPC warning messages and MIL displayed - Any combination of the following DTC's: U0073 U0100 u0101 u0121 u0128 U0129 u0131 U0140 U0146 U0422 U2413 P0107 P0641 C2A07 |
| PIP5407B | 2019-10-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have Diagnostic Trouble Code P06DD or no or low oil pressure. Technician will replace timing chain tensioner guide. If oil pump face is damaged and or worn thru replace oil pump. Inspect bearings for damage wear due to debris from oil pump. |
| PIT5677B | 2019-10-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the following issues and directs dealership to inspect the engine harness for shorting. Some customers may comment on any of the following concerns: - SES MIL - No Start - No Crank - Engine runs rough - Reduced engine power - Erratic speedo - Blown Fuse(s): F46UA, F47UA, F51UA, F78UA, F85UA, F86UA, F87UA, and/or F90UA When checking for DTC's any combination may be found: C15AA P001A P2B00 P2B01 P2B03 P2B96 P001B P003D P0107 P018C P01E5 P01E6 P01E7 P0237 P0340 P0341 P0355 P0365 P037C P03F0 P0521 P0522 P0532 P0616 P077C P07BF P1101 P112F P146D P159F p16A0 p16A2 P2122 P26E5 P2812 P2814 P2B53 P2C05 P2C08 P2C09 P2C0C P2C0D P2C10 P2C12 P2C15 P2C16 P2C19 P305E P3084 P3089 P308E P3093 P3094 P3095 P3098 P30B0 P30B3 P30CF U0073 U0100 U0101 U0140 U0644 U0672 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.