Did you try the switch in the glove box? If so and nothing happens then you can remove the back seat and have someone small climb into the trunk and pull the emergency release cord, or a locksmith might be able to help.
my switch is on the driver door.. maybe yours is too as the sistership car camaro= ats
How to open locked trunk
2013 Cadillac ATS 3.6L Performance AWD
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General
I have a 2014 Cadillac ATS that has no rear seat pass through to the truck my truck is locked and the battery is dead. How do I get the trunk open
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Maintenance & Repair
I unplugged battery. Ended up closing the trunk! My rear seats do not fold down. Help!
2013 Cadillac ATS 2.0T RWD
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Maintenance & Repair
Can I listen to the drive in movie on my radio with push button start?
2014 Cadillac ATS 2.0T Luxury AWD
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General
I cannot reach the inside trunk opener. how to open trunk with dead battery?
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