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How to Remove the "Code 84" Message from a Chevrolet Cruze

Model: Chevrolet Cruze MK 1, J300 - Years 2009-2015
Part: Warning light – error code

The "Code 84" message displayed on the Chevrolet Cruze indicates that engine power has been reduced. The reasons could vary from complex issues like injector replacement to needing a full service of the vehicle. Therefore, it is important to visit a workshop for a diagnosis. To reset the light, you need to disconnect the battery cable and the connector located on the car's floor, as shown in the video. Also, disconnect the throttle body in the engine compartment and repair the loose connection that it creates. To do this, simply reposition the throttle body connector correctly.

Updated on 28 August 2026 by ScegliAuto

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