Check a VIN

April 22, 2025 Service bulletin

This service bulletin provides diagnostic repair information to correct an oil leak in the engine.

Chevrolet technical service bulletin 21-NA-240 for 2020-2024 Chevrolet Blazer, 2020-2023 GMC Acadia and 2019-2024 Cadillac XT5 and others.

Bulletin number
21-NA-240
Component
Engine
Summary
This service bulletin provides diagnostic repair information to correct an oil leak in the engine.

Owners of these vehicles have filed 339 complaints in the engine category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Chevrolet Blazer?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history