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Service bulletin 16-NA-346

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 id10137633
Published by NHTSA2018-05-21
Manufacturer's number16-NA-346
Manufacturer's date2017-05-04
NHTSA componentELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY; ENGINE

NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of no crank / no start.

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

Electrical system, Engine, Starter

Vehicles listed
CHEVROLET EXPRESS2016, 2017
CHEVROLET SILVERADO2017
CHEVROLET SILVERADO 25002016 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2016, 2017
GMC SIERRA2017
GMC SIERRA 25002016 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2016 (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.

Other bulletins for the same vehicles and component
18NA0122018-06-04. Service bulletin. This technical bulletin provides a procedure to replace the trans control solenoid assembly if found the cause of the vehicle unable to crank the engine over.
17NA4022018-06-04. Service bulletin. This technical bulletin provides a procedure to replace relays that may be sticking in cold regions.
PIP4112Q2018-01-22. Service bulletin. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
08-07-30-026C2017-08-15. Service bulletin. This informational bulletin provides information on vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak and that this is considered a normal conditon and no repairs are necessary