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Service bulletins for the 2012 Chevrolet Express

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.

1796 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
146532017-01-31. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. 14653 - SPECIAL COVERAGE. SOME 2010-2014 MODEL YEAR CHEVROLET EXPRESS, 2011-2014 MODEL YEAR CHEVROLET SILVERADO HD, 2010-2014 MODEL YEAR GMC SAVANA AND 2011-2014 MODEL YEAR GMC SIERRA HD VEHICLES EQUIPPED WITH A 6.6L ENGINE (RPO LML OR LGH), MAY HAVE A CONDITION WHERE THE INDIRECT FUEL INJECTOR CAN BECOME STUCK IN THE CLOSED POSITION OR CAN HAVE LOW FLOW. THIS CONDITION COULD RESULT IN THE ILLUMINATION OF THE MALFUNCTION INDICATOR LIGHT (MIL). DEALERS ARE TO REPLACE THE INDIRECT FUEL INJECTOR AS NECESSARY WITH AN IMPROVED SERVICE PART.
15823 LETTER2017-01-23. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK. 15823 - CUSTOMER ADVISORY LETTER. THIS COMMUNICATION WAS TO INFORM DEALERS THAT A CUSTOMER MAILING WAS TAKING PLACE. THE LETTER INFORMS THE CUSTOMERS TO INSPECT FOR LEAKS OR DAMAGE TO THE FUEL FILLER NECK LINE AND/OR THE CARGO TANK HIGH PRESSURE FLEX LINES. TO ADDRESS THIS POTENTIAL CONDITION, CUSTOMERS ARE INSTRUCTED TO HAVE A CERTIFIED CNG TECHNICIAN INSPECT THE FUEL FILLER NECK LINE AND THE CARGO TANK HIGH PRESSURE FLEX LINE IN ACCORDANCE WITH GM SERVICE INFORMATION PROCEDURES. IN ADDITION, TO BE SURE THE CUSTOMER’S VEHICLE DOES NOT HAVE THIS CONDITION, CUSTOMERS ARE ALSO INSTRUCTED TO CONTINUE INSPECTIONS ANNUALLY AS PART OF ROUTINE MAINTENANCE. GM HAS UPDATED THE MAINTENANCE SCHEDULE IN THE CNG VEHICLES OWNER’S MANUAL SUPPLEMENT TO INCLUDE AN ANNUAL INSPECTION OF ALL CNG FLEX LINES.
16-NA-1532016-10-07. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; EQUIPMENT ADAPTIVE/MOBILITY. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON COMPRESSED NATURAL GAS (CNG) FUEL LINE INSPECTION AND REPLACEMENT PART IDENTIFICATION.
16-NA-1022016-10-03. Service bulletin. FUEL SYSTEM, GASOLINE. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT AND REPLACE NECESSARY FUEL COMPONENTS TO CORRECT A CUSTOMER CONCERN OF HARD START OR A NO START AND DTCS P0087, P0088, P0191 OR P128E SET CAUSED BY THE FUEL SYSTEM BEING CONTAMINATED WITH DEBRIS.
SB-16NA-1312016-08-10. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, OTHER; FUEL SYSTEM, GASOLINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON VEHICLES DESIGNED TO OPERATE ON GASEOUS FUELS.
PI08022016-06-13. Service bulletin. FUEL SYSTEM, OTHER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
131392016-06-09. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
14-06-04-0022016-05-19. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP51332016-04-26. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP51512016-04-26. Service bulletin. FUEL SYSTEM, OTHER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-0000190294-A2016-03-31. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-131392016-03-16. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SC-146532015-11-07. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. GMC/CHEVROLET: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. SOME TRUCKS WILL EXPERIENCE ILLUMINATION OF MALFUNCTION INDICATOR LIGHT (MIL) DUE TO INDIRECT FUEL INJECTOR WILL HAVE LOW FLOW OR BE STUCK IN CLOSED POSITION. MODEL 2010-14 EXPRESS, SAVANA, 2011-14 SIERRA HD, SILVERADO HD. *PE
SC-146522015-11-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, DIESEL. CHEVROLET/GMC: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. SOME TRUCKS WILL EXPERIENCE AN INCREASED HEATER RESISTANCE OR REDUCTANT SYSTEM PERFORMANCE DUE TO AN OFFSET IN TEMPERATURE SENSOR OF DIESEL EMISSION REDUCTION FLUID TANK RESERVOIR, CAUSING THE MALFUNCTION INDICATOR LAMP TO ILLUMINATE. MODEL 2010-12 EXPRESS, SAVANA, 2011-12 SILVERADO HD, SIERRA HD. *PE
SC-146342015-06-17. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. GMC/CHEVROLET: TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. THE FUEL PUMP HAS AN OPEN CIRCUIT AND/OR OVERHEATING CONDITION, IN SOME VEHICLES, WHEREBY ITS INOPERATIVE BECAUSE OF FUEL PUMP MODULE BATTERY TERMINAL. MODEL 2010-14 EXPRESS, SAVANA. *PE UPDATED 10/7/15 *CN
PIP5133C2015-06-12. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. GENERAL MOTORS: CHEVROLET EXPRESS 2010-2015 SILVERADO ,SAVANA SIERRA EQUIPPED WITH 6.6L DURAMAX DIESEL ENGINE RPO CODES LGH. DURAMAX FUEL INJECTION PUMP PART RESTRICTION. *LJ
14-06-04-002A2015-03-24. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. GM: 2012-2015 CHEVROLET EXPRESS, SAVANA CUSTOMERS ARE EXPERIENCING VEHICLES NOT ABLE TO START UP DUE TO LPG FUEL PUMP INOPERATING. *LJ
PIP-4942-B2014-10-16. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. GMC/CHEVROLET: AT BOTTOM OF FLYWHEEL HOUSING, A LEAK IS FOUND, CAUSING A FUEL ODOR, DUE TO HIGH PRESSURE PUMP TO HIGH PRESSURE LINE FITTING OR FUEL RAIL CONNECTION. 2010-2015 EXPRESS, SIERRA, SAVANA, SILVERADO. *PE
SB-14-06-04-0022014-03-18. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. CHEVROLET/GMC: DUE TO AN INOPERATIVE LPG FUEL PUMP, AN INTERMITTENT CONDITION OF NO START IS CAUSED. MODEL 2012-2014, EXPRESS, SAVANNA. *PE
PI-08022012-11-19. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. CHEVROLET/GMC: MALFUNCTION INDICATOR LAMP REGARDING FUEL GAUGE REGISTERING EMPTY OR INOPERATIVE AFTER HALF A TANK OF FUEL AND WILL BE CORRECTED WITH NEW COMPRESS NATURAL GAS (CNG) MODULE. MODEL 2012 EXPRESS, SAVANA. *PE
PIP-4949-B2012-05-24. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. GM: DURAMAX DIESEL HARD START, NO START, OR DTC P0087 INJECTION PUMP REPLACEMENT. NORMAL SI DIAGNOSTICS MAY BE INCONCLUSIVE OR LEAD TO A FUEL INJECTION PUMP REPLACEMENT. *JS UPDATED 11/12/14. PE
PIP-49422011-10-03. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. CHEVROLET/GMC: AT HIGH PRESSURE PUMP TO HIGH PRESSURE FUEL LINES THERE ARE SIGNS OF FUEL LEAKAGE AND/OR FUEL ODOR. *PE UPDATED ON 5/2/2012. *KB

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