Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
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Unfortunately the only way to turn off the check engine light is with a compatible scan tool that will plug in and communicate with the engine and transmission computer.The scan tool is used to perform the function of clear fault codes.The other option to do this is to operate the vehicle for up to a couple of weeks off and on until the light turns itself off but this will only occur if the fault has been corrected.
The vehicle may operate and drive properly now but there is a chance a Hybrid component is failing which caused the light to come on and message you see as well here.If it were mine I would have this looked into as soon as you can before continuing on the trip to make sure this isnt something that can eventually break down on the road leaving you stranded.Usually a local dealer or shop in your area can read out and diagnose the fault codes to help pinpoint and repair this here.Or at least allow them to read out the fault codes to let you know if it can be driven until it can be repaired.
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Usually this wont cause a fault here as long as the alternator was still charging properly.If it wasnt charging properly usually the engine would have died out or electronics would have turned off.I suspect a sensor or component in the hybrid system is acting up possibly needing replaced.
If you can I wouldnt take the risk traveling to far until you can have this looked into further.
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