1966 Pontiac Catalina Dashboard Service Light

Is it in the shape of an indian head under the Speedo? I used to think there was a crack in my speedo, but it was me having my high beams on and not knowing that is was an indian head. Try pushing in the high beam switch under you parking break and see if it turns off. If not we may be able to help you if you tell us what is illuminated.

hello red light either fullbeam....or worse...engine is overheated the overheat light will also come one when you use the starter..its a way to check the function regards stig

If its right in the middle of the speedo, it means your brights are on

I have just bought the complete 66 Pontiac Service manual. I Can help you if you provide more info and tell us exactly where this light is, maybe post a pic.

It's the high beams