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Service bulletin 20NA116

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 id10178273
Published by NHTSA2020-08-10
Manufacturer's number20NA116
Manufacturer's date2020-06-01
NHTSA componentVEHICLE SPEED CONTROL

NHTSA's summary

This informational bulletin provides information on Available Top Speed Changes and how to reach them.

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

Throttle and cruise control

Vehicles listed
CHEVROLET 4500HD2019, 2020
CHEVROLET 5500HD2019, 2020
CHEVROLET SILVERADO 45002019, 2020 (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
10-08-110-001L2025-02-11. Service bulletin. This service bulletin provides information on proper use of floor mats.
25-NA-0192025-02-11. Service bulletin. This bulletin advises the tech to check other areas that may need repair before replacing the wheel speed sensor.
PIT58182021-04-19. Service bulletin. This Preliminary information communicates an issues will low or poor heater performance on the drivers side. Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.
N192210330 012019-11-12. Service bulletin. N192210330 01 - Service Update (Revised service procedure). Certain vehicles received an instrument panel cluster (IPC) service calibration whick prevents the cruise control indicator and digital speed from displaying. Dealers are to reprogram the IPC.
PIT5392D2019-11-12. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a detent / click with a feel of increased resistance when the accelerator pedal is about ¾ of the way. The new accelerator pedal design has a built-in detent position near the last 1/4 of pedal travel. Dealer should communicate to the customer this is a normal operating characteristic of the vehicle and no repair attempts should be performed.
18NA2172019-07-01. Service bulletin. This technical bulletin provides a procedure to locate and repair a possible short in the 5294 circuit and correct the customers concern.
N1922103302019-05-13. Service bulletin. N192210330 - Service Update. Certain vehicles received an instrument panel cluster (IPC) service calibration whick prevents the cruise control indicator and digital speed from displaying. Dealers are to reprogram the IPC.