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Service bulletins for the 2016 Chevrolet Tahoe

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.

1771 on file from NHTSA, as of 2026-10-19.

About P2635 on the 2016 Chevrolet Tahoe: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2635 are shown. Show all

Bulletins, newest first
PIP5286B2019-07-08. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary Information communication provides information to the technician for a vehicle setting both a P2635 and P018B diagnostic trouble codes. The following steps may help to determine if this is caused by a fuel pressure sensor not reading the low end of the pressure range. Technician is to make sure the engine is cold and install the Multiple Diagnostic Interface along with Global Diagnostic System 2. Navigate to fuel system depressurize and at engine idle depressurize the fuel system. The fuel pressure sensor value should drop to 0 and the engine will stall. If a sensor is causing this concern the suspected sensor will not drop to 0 the engine will stall however the sensor will still read 30 to 40 pounds per square inch.
PIP5427B2019-04-08. 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.
PIP5427A2018-05-21. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES. 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.
PIP5411F2017-11-14. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have hesitation or a stalling condition while in ambient temperatures 100 degrees or higher. Technician may find Diagnostic Trouble Codes P2635 and or P018B set. The dealer is advised to replace the in tank fuel pump module assembly to correct the condition.
PIP5411E2017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that may have hesitation or a stalling condition while in ambient temperatures 100 degrees or higher. Technician may find Diagnostic Trouble Codes P2635 and or P018B set. The dealer is advised to replace the in tank fuel pump module assembly to correct the condition. Dealer directed to follow latest version of PIP5507 if the fuel pump does not correct the concern.
PIP5411C2017-10-15. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. This Preliminary Information communication provides information to the technician about vehicles that may have hesitation or a stalling condition while in ambient temperatures 100 degrees or higher. Technician may find Diagnostic Trouble Codes P2635 and or P018B set. The dealer is advised to replace the in tank fuel pump module assembly to correct the condition.
PIP55072017-10-04. Service bulletin. EQUIPMENT. This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition.Excessively Hot and sustained ambient temperatures over 100F (37.7 C) degrees Mainly in TX, AZ, UT, NV, CA, NM (could be any state) causingVapor buildup in fuel feed line.Customers can be advised to utilize fuels with octane levels greater than 91, Refrain from extended idleing periods if possible, park vehicles in covered garage.Replacing the fuel pump will not repare this concern.
PIP5507B2017-08-15. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition.Excessively Hot and sustained ambient temperatures over 100F (37.7 C) degrees Mainly in TX, AZ, UT, NV, CA, NM (could be any state) causingVapor buildup in fuel feed line.Customers can be advised to utilize fuels with octane levels greater than 91, Refrain from extended idleing periods if possible, park vehicles in covered garage.Replacing the fuel pump will not repare this concern.
PIP5411D2017-08-15. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING. This Preliminary Information communication provides information to the technician about vehicles that may have hesitation or a stalling condition while in ambient temperatures 100 degrees or higher. Technician may find Diagnostic Trouble Codes P2635 and or P018B set. The dealer is advised to replace the in tank fuel pump module assembly to correct the condition. Dealer directed to follow latest version of PIP5507 if the fuel pump does not correct the concern.
PIP5507A2017-08-15. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition.Excessively Hot and sustained ambient temperatures over 100F (37.7 C) degrees Mainly in TX, AZ, UT, NV, CA, NM (could be any state) causingVapor buildup in fuel feed line.Customers can be advised to utilize fuels with octane levels greater than 91, Refrain from extended idleing periods if possible, park vehicles in covered garage.Replacing the fuel pump will not repare this concern.
PIP54272017-05-22. Service bulletin. ENGINE; ELECTRICAL SYSTEM. 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.
PIP5411B2017-05-19. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE HESITATION OR A STALLING CONDITION WHILE IN AMBIENT TEMPERATURES 100 DEGREES OR HIGHER. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES P2635 AND OR P018B SET. THE DEALER IS ADVISED TO REPLACE THE IN TANK FUEL PUMP MODULE ASSEMBLY TO CORRECT THE CONDITION.
PIP5411A2016-10-21. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE HESITATION OR A STALLING CONDITION WHILE IN AMBIENT TEMPERATURES 100 DEGREES OR HIGHER. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES P2635 AND OR P018B SET. DEALER SHOULD COMMUNICATE TO THE CUSTOMER THAT WE APOLOGIZE FOR THIS INCONVENIENCE AND THAT GENERAL MOTORS IS WORKING ON A SOLUTION FOR THIS CONCERN. IF WORKING ON POLICE PURSUIT VEHICLES REGULAR PRODUCTION OPTION CODE PPV OR FLEET VEHICLES REGULAR PRODUCTION OPTION CODE FLT, CONTACT THE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE.

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