The "HOLD" light on a 2007 Chevrolet Optra typically indicates that the transmission is in a mode that prevents it from shifting to higher gears. Yep, the first thing I would do is change the switch, yes, they are easy to change. The switch will pop out in most cases, or you will need to remove a trim panel. If you upload images of the switch I can help you, also, we should run the codes to see if any are stored.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
Please upload pictures or videos in your response of any problems so we can see what to help you with.
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Thursday, September 26th, 2024 AT 2:41 PM