# 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.

- Type: Service bulletin
- NHTSA id: 10178273
- Published by NHTSA: 2020\-08\-10
- Manufacturer's number: 20NA116
- Manufacturer's date: 2020\-06\-01
- NHTSA component: VEHICLE SPEED CONTROL

## NHTSA's summary

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

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178273-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178273-9999.pdf)

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

## Components

Throttle and cruise control

## Vehicles listed

- 2019 to 2020 CHEVROLET 4500HD
- 2019 to 2020 CHEVROLET 5500HD
- 2019 to 2020 CHEVROLET SILVERADO 4500

## Other bulletins for the same vehicles and component

- [10\-08\-110\-001L](/bulletins/11014171.md), 2025-02-11, Service bulletin: STRUCTURE:BODY; VEHICLE SPEED CONTROL. This service bulletin provides information on proper use of floor mats.
- [25\-NA\-019](/bulletins/11014138.md), 2025-02-11, Service bulletin: WHEELS; VEHICLE SPEED CONTROL; AIR BAGS; ELECTRICAL SYSTEM; SERVICE BRAKES. This bulletin advises the tech to check other areas that may need repair before replacing the wheel speed sensor.
- [PIT5818](/bulletins/10190424.md), 2021-04-19, Service bulletin: VEHICLE SPEED CONTROL; STEERING. 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 01](/bulletins/10167477.md), 2019-11-12, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. 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.
- [PIT5392D](/bulletins/10167461.md), 2019-11-12, Service bulletin: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. 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.
- [18NA217](/bulletins/10161939.md), 2019-07-01, Service bulletin: ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL:CRUISE CONTROL. This technical bulletin provides a procedure to locate and repair a possible short in the 5294 circuit and correct the customers concern.
- [N192210330](/bulletins/10159566.md), 2019-05-13, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. 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.

JSON: [/v1/bulletins/10178273](/v1/bulletins/10178273)

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