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Service bulletin 21-NA-054

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 id10232072
Published by NHTSA2023-02-23
Manufacturer's number21-NA-054
Manufacturer's date2023-02-06
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM

NHTSA's summary

This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.

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, Equipment and accessories, Instrument cluster

Trouble codes named

U0155

Vehicles listed
BUICK ENCLAVE2022, 2023
CHEVROLET BLAZER2021, 2022, 2023
CHEVROLET CAMARO2021, 2022, 2023
CHEVROLET MALIBU2021, 2022, 2023
CHEVROLET TRAVERSE2022, 2023
GMC ACADIA2021, 2022, 2023
GMC TERRAIN2022, 2023
GMC TERRAIN NA2022 (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
21-NA-0542024-03-29. Service bulletin. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.
22-NA-0232023-07-25. Service bulletin. This service bulletin provides repair information to correct a customer concern of Instrument Cluster DIC Displays Programming in Progress Message and Progress Bar.
22-NA-0232023-04-14. Service bulletin. This service bulletin provides repair information to correct a customer concern of Instrument Cluster DIC Displays Programming in Progress Message and Progress Bar.
22-NA-0232023-03-03. Service bulletin. This service bulletin provides repair information to correct a customer concern of Instrument Cluster DIC Displays Programming in Progress Message and Progress Bar.
21-NA-0542022-11-03. Service bulletin. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.
22NA0402022-07-18. Service bulletin. 2022 Enhanced Driver Information Center 8?? (UHS) Digital Display Off Center.
22NA0232022-06-21. Service bulletin. This service bulletin provides repair information to correct a customer concern of Instrument Cluster DIC Displays Programming in Progress Message and Progress Bar.
PIT5195G2022-06-13. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
21-NA-1272022-06-06. Service bulletin. This service bulletin provides repair information to correct a customer concern of Head Up Display (HUD) Blank, Non-Responsive to Brightness, Aim, or Page Controls, DTC U1518 Set.
21NA0542021-12-27. Service bulletin. This service bulletin provides repair information to correct a customer concern of Instrument Cluster Resets, Center Display Goes Blank, or Gauges Inoperative.