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Service bulletin PIT5989A

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 id10251725
Published by NHTSA2024-03-18
Manufacturer's numberPIT5989A
Manufacturer's date2024-02-29
NHTSA componentEXTERIOR LIGHTING; ELECTRICAL SYSTEM

NHTSA's summary

This Preliminary information communicates a issue where the Can bus 1 data line is being corrupted by a aftermarket lighting module or poor connection installed by a Police Upfitter.

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, Lighting

Vehicles listed
CHEVROLET TAHOE2021, 2022, 2023, 2024

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

Recalls for the same vehicles and component
20245192024-09-12. Lights And Instruments
20240602024-02-01. Lights And Instruments
20234722023-08-24. Lights And Instruments
20227002022-12-08. Lights And Instruments
22V9030002022-12-08. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
20226342022-11-03. Lights And Instruments
22V8270002022-11-03. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
21V4210002021-06-10. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE

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
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.
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-1012025-06-26. Service bulletin. This service bulletin provides information on the restraint warning lamp being illuminated and the correction to this by replacing the passenger presence module.
22-NA-2422025-06-16. Service bulletin. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
25-NA-0952025-06-11. Service bulletin. This bulletin provides information of possible fuel injector harness electrical connector terminal having low tension creating the customers concern of a MIL Illuminated with Multiple Circuit DTCs set.
21-NA-1662025-06-06. Service bulletin. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
25-NA-0932025-06-06. Service bulletin. This technical service bulletin provides information on the SES light illuminated due to software anomalies and the correction to reprogram the engine control module.
24-NA-2292025-06-03. Service bulletin. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
25-NA-0872025-05-02. Service bulletin. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
25-NA-0772025-04-29. Service bulletin. Some customers may comment that they do not see any apps on their rear seat infotainment system.