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Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1184
Experience:  Senior Technician
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I have just been alerted of a code84 which according to the

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JA: Hi. What is your issue regarding?
Customer: I have just been alerted of a code84 which according to the manual indicates reduced engine power and the nearest dealer is 337km away. What is the appropriate thing to do
JA: How many miles are on the car? Is it an automatic or a manual transmission?
Customer: It's a manual transmission and just returned from its 135000 km service 3weeks ago
JA: What is the model/year of your Chevy?
Customer: 2012Cruze
JA: What year is your Chevy?
Customer: 2012
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: No...I have always taken it to the dealer
JA: Anything else you want the mechanic to know before I connect you?
Customer: has previously had 2incidents of a bursted steering wheel fluid pump. All replaced by the dealer and finally something to do with changing the steering wheel unit. The car slightly still pulls to the right even after these repairs

Welcome! My name is ***** ***** I will do my best to assist you with this problem.Ask me about added features such as phone contact anytime if you wish !

who told you the code number ?

is it a B0084 code ? or a P0084 ?

Customer: replied 1 year ago.
It's just code 84

but i need to know what system is setting the 84

P or B or C

who told you it had a code ?

Customer: replied 1 year ago.
It's just there displayed on the dashboard. CODE 84. I tried to start it again and it failed. I went to the manual and there were a numerous code numbers each with a definition

Hello there,

New tech here, also Gary.

I know Cruze well.

Was there any other symptoms prior to the code 84 appearing on the cluster?

It is not starting now correct?

No cranking, or cranking no fire?

Only a Chev dealer will fix this for you, so you need to get the vehicle to your dealer.

Sorry for bad news.


Customer: replied 1 year ago.
It was fine in the morning when I went to work. Parked it and got this fault around lunch. There's no cranking
Thank you Garys! :-)

I would say it has developed the battery negative terminal fault, or possibly a BCM/key fault issue.

The dealer will sort it for you, I have done many.

Wish you all the best.


Hello again,

Have you had any success with your problem?

I hope my advice has been of assistance to you.

Kind regards


Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1184
Experience: Senior Technician
Gary and 3 other Chevy Specialists are ready to help you