# Service bulletin 17067

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.

- Type: Service bulletin
- NHTSA id: 10143408
- Published by NHTSA: 2018\-08\-06
- Manufacturer's number: 17067
- Manufacturer's date: 2018\-05\-01
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, DIESEL

## NHTSA's summary

17067 \- Product Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall on certain vehicles equipped with a 6.6L diesel \(LML\) engine and dual fuel tanks \(N2N\). Under certain driving conditions, fuel may not be transferred from the rear fuel tank to the front fuel tank at a sufficient rate. If this occurs, the diagnostic trouble code \(DTC\) P2636 will set, the malfunction indicator lamp will illuminate, the fuel gauge will display empty, and the transfer pump will be disabled until serviced. If the vehicle continues to be driven, it will run out of fuel in the front tank and stall. Dealers are to replace fuel line connections to allow the rear tank, in addition to the front tank, to directly supply fuel to the engine. The engine control module \(ECM\) will also be reprogrammed with calibrations necessary to support this new connection.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143408-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143408-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Exhaust and emissions, Fuel system, Fuel tank, Software

## Trouble codes named

P2636

## Vehicles listed

- 2015 to 2016 CHEVROLET SILVERADO 2500
- 2015 to 2016 GMC SIERRA 3500

## Recalls for the same vehicles and component

- [19V088000](/recalls/nhtsa/19V088000.md), 2019-02-07: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
- [16V084000](/recalls/nhtsa/16V084000.md), 2016-02-11: ELECTRICAL SYSTEM:SOFTWARE
- [14V301000](/recalls/nhtsa/14V301000.md), 2014-06-06: ELECTRICAL SYSTEM:SOFTWARE; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

## Other bulletins for the same vehicles and component

- [20\-NA\-132](/bulletins/10252774.md), 2024-04-05, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [PIT5350](/bulletins/10252160.md), 2024-04-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Programming IPC Engine Hours Into A Replacement IPC.
- [14743B](/bulletins/10247235.md), 2023-12-18, Service bulletin: POWER TRAIN; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM. Loss of Electric Power Steering \(EPS\) Assist
- [130089004H](/bulletins/10246623.md), 2023-12-11, Service bulletin: VISIBILITY:WINDSHIELD; UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:LIGHTING CONTROL MODULE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; VEHICLE SPEED CONTROL:THROTTLE:THROTTLE POSITION SENSOR \(TPS\). Car and Truck Fix it Right the First Time Issues
- [PIP5632G](/bulletins/10230683.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
- [PIP4902Q](/bulletins/10230682.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
- [29400\-01](/bulletins/10191129.md), 2021-04-30, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. Condition On certain 2013\-2015 model year Chevrolet Express, Chevrolet Silverado HD, GMC Savana, GMC Sierra HD, and 2014\-2015 model year Chevrolet Cruze vehicles that are equipped with a diesel engine \(RPO LML/LGH/LUZ\), a malfunction\-indicator light \(MIL\) may illuminate due to an offset in the temperature sensor in the diesel\-emission\-reduction fluid \(DEF\) tank reservoir or increased DEF tank\-heater resistance. Special Coverage Adjustment This special coverage covers the condition described above for a period of 10 years or 120,000 miles \(193,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 17, 2016, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 17, 2016, must be submitted to the Service Contract provider. Correction Dealers are to replace the DEF tank reservoir. The repairs will be made at no charge to the customer
- [15\-NA\-083](/bulletins/10190387.md), 2021-04-20, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Recovery Process from a Controller Reprogramming Interruption During service reprogramming of the T87 TCM, some technicians may notice the TCM may fail during the reprogramming event and become unresponsive to the Service Programming System \(SPS\), unresponsive to the GDS2 tool. This bulletin addresses corrective actions to attempt to recover the module before declaring the TCM as a bad part and replacing. During reprogramming, an interruption can cause the module to lock up. A module reset may recover the TCM
- [21NA010](/bulletins/10187773.md), 2021-03-01, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to reset the DTCs and take the vehicle for a test drive to verify the codes do not return.
- [16NA019](/bulletins/10186058.md), 2021-02-01, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

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