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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 id11000151
Published by NHTSA2024-05-15
Manufacturer's number21-NA-054
Manufacturer's date2024-04-22
NHTSA componentELECTRICAL 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

Trouble codes named

U0155

Vehicles listed
BUICK ENCLAVE2022, 2023, 2024
CHEVROLET BLAZER2021
CHEVROLET BLAZER2023, 2024
CHEVROLET CAMARO2021
CHEVROLET CAMARO2023, 2024
CHEVROLET MALIBU2021
CHEVROLET MALIBU2023, 2024
CHEVROLET TRAVERSE2022, 2023, 2024
GMC ACADIA2021
GMC ACADIA2023, 2024
GMC TERRAIN2022, 2023, 2024
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.

Recalls for the same vehicles and component
24V3200002024-05-09. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM:WIRING

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
N242468490-022026-05-28. Service campaign. Certain vehicles may have missing cavity plugs from the rear chassis harness electrical connector. Dealers are to inspect the rear chassis harness and replace missing harness plugs as necessary.
24-NA-2722025-12-03. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Park Assist False Alerts on Z71 Traverse.
24-NA-1662025-12-02. Service bulletin. This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire Pressure Monitor Sensor Unable to Relearn Ethernet Cable Overlay for TCP OnStar Module.
25-NA-1192025-10-27. Service bulletin. This service bulletin provides information on the Service Safety Restraint Message displayed on the DIC Airbag malfunction indicator illuminated.
25-NA-0442025-10-27. Service bulletin. This service bulletin provides information for dealers/technicians on SPS2 Hybrid/EV Battery Data Retrieval for Service High Voltage DTCs.
24-NA-2022025-10-27. Service bulletin. This service bulletin provides dealers with Warranty Administration information on North American Charging Standard (NACS) DC Adapter Warranty Claim Information.
23-NA-1702025-10-25. Service bulletin. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
25-NA-0742025-10-16. Service bulletin. Some customers may comment on rear body structure stop lamp or rear closure signal lamp may be totally inoperative or staying illuminated.
23-NA-1192025-10-16. Service bulletin. This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.
18-NA-1802025-10-16. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.