Headlight Warning - 2013 Cadillac ATS Long-Term Road Test

2013 Cadillac ATS Long Term Road Test

2013 Cadillac ATS: Headlight Warning

January 13, 2014

2013 Cadillac ATS

The other day our long-term 2013 Cadillac ATS threw up the "dead headlight" warning you see above.

Not one to blindly follow our electronic overlords, I checked out the situation firsthand:

2013 Cadillac ATS

Um...well, on the plus side, at least the headlight works. Not sure the same can be said about its diagnostic system.

Jason Kavanagh, Engineering Editor


  • cobryson cobryson Posts:

    I haven't looked to see what's equipped, but perhaps it could be a failure of any automatic steering/leveling features it has?

  • stovt001_ stovt001_ Posts:

    This feature (if it worked) would be helpful for taillights. When I first started driving and got my first car I drove around for weeks with a a burned out taillight because my friends didn't deem it necessary to inform me.

  • cwalton1 cwalton1 Posts:

    This is the second time this has occurred: http://www.edmunds.com/cadillac/ats/2013/long-term-road-test/2013-cadillac-ats-erroneous-headlamp-fault-code.html ~Chris

  • mercedesfan mercedesfan Posts:

    My wife's old SL500 would do this. You'd be driving along and it would suddenly panic and throw out 2 or 3 faults, usually burned out bulbs. If you restarted the car everything would reset and be just fine again. I'm not so sure it is complimentary to associate the ATS' electrical system with that of an early 2000's MB.

  • oachalon oachalon Posts:

    GM has been sending updates through onstar for this issue. I received this update last month on my ATS. Edmunds needs to take a look at this, as there is a software update that resolves this issue.

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