# Service bulletin 20\-NA\-198

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: 10235399
- Published by NHTSA: 2023\-05\-03
- Manufacturer's number: 20\-NA\-198
- Manufacturer's date: 2023\-04\-05
- NHTSA component: ELECTRICAL SYSTEM; EXTERIOR LIGHTING; EQUIPMENT

## NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10235399-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10235399-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, Lighting

## Vehicles listed

- 2019 to 2022 CHEVROLET SILVERADO 1500
- 2020 to 2023 CHEVROLET SILVERADO 2500
- 2020 to 2023 CHEVROLET SILVERADO 3500
- 2019 to 2022 GMC SIERRA 1500
- 2020 to 2023 GMC SIERRA 2500
- 2020 to 2023 GMC SIERRA 3500

## Recalls for the same vehicles and component

- [2024519](/recalls/tc/2024519.md), 2024-09-12: Lights And Instruments
- [2024060](/recalls/tc/2024060.md), 2024-02-01: Lights And Instruments
- [2023472](/recalls/tc/2023472.md), 2023-08-24: Lights And Instruments
- [2022700](/recalls/tc/2022700.md), 2022-12-08: Lights And Instruments
- [22V903000](/recalls/nhtsa/22V903000.md), 2022-12-08: EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
- [2022348](/recalls/tc/2022348.md), 2022-06-30: Lights And Instruments
- [22V463000](/recalls/nhtsa/22V463000.md), 2022-06-30: EXTERIOR LIGHTING:BRAKE LIGHTS
- [2022160](/recalls/tc/2022160.md), 2022-03-31: Accessories
- [21V496000](/recalls/nhtsa/21V496000.md), 2021-07-01: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
- [2020304](/recalls/tc/2020304.md), 2020-07-03: Lights And Instruments

## Other bulletins for the same vehicles and component

- [N252515590](/bulletins/11027795.md), 2026-01-27, Service campaign: ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body\-to\-chassis ground strap may be corroded. Dealers will replace the ground strap.
- [07\-08\-42\-006U](/bulletins/11026022.md), 2025-12-03, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer \(Upfitter\), and/or turn signals flash fast after factory box removed.
- [23\-NA\-170](/bulletins/11024486.md), 2025-10-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
- [23\-NA\-201](/bulletins/11024378.md), 2025-10-21, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM; STEERING. This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp \(MIL\) Illuminated.
- [22\-NA\-161](/bulletins/11023368.md), 2025-09-27, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
- [24\-NA\-078](/bulletins/11020268.md), 2025-07-08, Service bulletin: ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin advises the tech to replace the starter and not the trans if grinding or growling is heard from the transmission area.
- [25\-NA\-101](/bulletins/11019755.md), 2025-06-26, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; SEATS. This service bulletin provides information on the restraint warning lamp being illuminated and the correction to this by replacing the passenger presence module.
- [25\-NA\-099](/bulletins/11019719.md), 2025-06-25, Service bulletin: ELECTRICAL SYSTEM. This bulletin advises the tech to refer to a procedure in SI to aid in diagnosing a possible wiring concern.
- [22\-NA\-242](/bulletins/11019545.md), 2025-06-16, Service bulletin: ELECTRICAL SYSTEM. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
- [21\-NA\-166](/bulletins/11019325.md), 2025-06-06, Service bulletin: EXTERIOR LIGHTING; STEERING. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.

JSON: [/v1/bulletins/10235399](/v1/bulletins/10235399)

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