WenmarOpen by Wenmar Pro

Service bulletin PIT5510D

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10137193
Published by NHTSA2018-05-21
Manufacturer's numberPIT5510D
Manufacturer's date2018-03-21
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles that may have fuel gauge that shows empty and the low fuel level indicator is on. Technician will find Diagnostic Trouble Code P2636 will be set in the Engine Control Module. Technician will need to install (Y) Fuel Tank Fill Vent hose. Technician will need to remove the original fuel balance pump line from the pump tube. Technician can now add a new line from the (Y) to the fuel balance pump line and reprogram the ECM with updated calibrations. If the vehicle returns with the same concern and Diagnostic Trouble Code P2636 set in the Engine Control Module. Technician will need to reprogram the Engine Control Module with the latest calibrations.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P2636

Vehicles listed
CHEVROLET SILVERADO 35002016 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002016 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20190552019-02-08. Fuel System
19V0880002019-02-07. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
18-NA-1802025-10-16. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802025-09-26. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
25-NA-0652025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
18-NA-1802025-01-30. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802025-01-08. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802024-12-17. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802024-10-09. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
05-06-04-022V2024-09-05. Service bulletin. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
18-NA-1032024-08-24. Service bulletin. This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
20-NA-0382024-08-15. Service bulletin. This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.