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What does the Cruze code 84 mean?

2 Answers

LeFelicity

09/08/25 7:32am

Cruze code 84 indicates insufficient power. Below are specific details about the Cruze: Background: The Cruze is a compact sedan produced by Chevrolet in 2009. It integrates advanced technology, featuring a bold and dynamic exterior design and a youthful, stylish interior. With relatively low fuel consumption and leading performance in the A-segment, it achieved strong sales after its launch. Currently, it is available in two engine displacements, 1.6L and 1.8L, with a total of six models. The Cruze is a compact sedan developed by General Motors using a global design platform and cutting-edge technology, making its global debut at the Paris Motor Show in October 2009. Configuration: The Cruze is equipped with 1.6L and 1.8L engines paired with a 6-speed automatic transmission.

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KaydenLee

09/20/25 6:01am

The Code 84 on the Cruze is quite common in Chevrolet vehicles, indicating an issue with the anti-theft system. The Passlock anti-theft system is designed to prevent theft, but if it malfunctions, the car may fail to start, or the security light may keep flashing. Having driven a Cruze for several years, I've encountered this issue a few times and found several typical causes: the transponder chip in the key might not be recognized, possibly due to a depleted key battery or a damaged chip; or there could be a problem with the Body Control Module (BCM); even loose wiring connections can be the culprit. I remember one time when my car's engine wouldn't crank at all during startup, and switching to a spare key fixed the issue. If that doesn't work, try disconnecting the negative battery terminal for about ten minutes before reconnecting it. Don't delay addressing this—prolonged ignition failure can cause more trouble. It's safest and most convenient to visit a repair shop for a diagnostic scan.

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