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  1. Join Date
    May 2011
    Hi guys, I just changed my Tucson ix35 car battery today from the stock to Motolite 2SM Excel.
    Now Im not sure if its related or coincidence but it only lit up after I changed my car's battery.
    Should I be worried? Should I send it off to hyundai for checkup?

  2. Join Date
    Apr 2006
    Try to reset your ecu. Usually after batteries are changed, the ecu should be reset. Turn your key to on position for 10-15 seconds then back to off postion. do this 3 times then remove key then start car. If this doesn't do the trick then have an OBD check.

Malfunction Indicator lighting up after battery change?