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Service bulletin 20-NA-051

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 id10243748
Published by NHTSA2023-10-10
Manufacturer's number20-NA-051
Manufacturer's date2023-09-15
NHTSA componentEQUIPMENT

NHTSA's summary

This informational bulletin provides information on the Low Cab Forward trucks and the Alpine Radio Exchange Program.

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

Equipment and accessories

Vehicles listed
CHEVROLET 35002016
CHEVROLET 35002017 to 2019
CHEVROLET 35002020
CHEVROLET 35002021
CHEVROLET 35002022
CHEVROLET 45002016
CHEVROLET 45002017 to 2019
CHEVROLET 45002020
CHEVROLET 45002022
CHEVROLET 4500HD2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET 4500XD2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET 5500HD2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET 5500XD2018, 2019, 2020, 2021, 2022
CHEVROLET 6500HD2019 to 2023
CHEVROLET C35002018
CHEVROLET LOW CAB FORWARD 35002016 to 2019
CHEVROLET LOW CAB FORWARD 45002016 to 2017
CHEVROLET LOW CAB FORWARD 55002016 to 2017
CHEVROLET LOW CAB FORWARD 65002018

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

Recalls for the same vehicles and component
22V8740002022-11-23. EQUIPMENT

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
23-NA-0642024-05-02. Service bulletin. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
23-NA-1032024-03-29. Service bulletin. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).
11-00-89-005X2024-03-19. Service bulletin. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
07-00-89-037S2024-03-19. Service bulletin. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
24-NA-0402024-03-15. Service bulletin. This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
23-NA-1892024-02-14. Service bulletin. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
23-NA-0552024-02-14. Service bulletin. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.