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Service bulletin 23-NA-115

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 id10239123
Published by NHTSA2023-07-14
Manufacturer's number23-NA-115
Manufacturer's date2023-06-28
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR

NHTSA's summary

This service bulletin provides a procedure to verify the noise and align the camshaft caps to correct customer concerns of a Ticking, Tapping or Snapping Noise from Engine.

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

Engine

Vehicles listed
CHEVROLET CORVETTE2023

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

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15-NA-0102025-07-07. Service bulletin. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
25-NA-1002025-06-12. Service bulletin. This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.
23-NA-1152025-06-06. Service bulletin. This service bulletin provides a procedure to verify the noise and align the camshaft caps to correct customer concerns of a Ticking, Tapping or Snapping Noise from Engine.
25-NA-0522025-04-28. Service bulletin. This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.
24-NA-2692025-04-28. Service bulletin. This service bulletin informs the technician that there are multiple drain plugs that need to be removed in order to drain all the oil from the engine.