Nissan Repair Questions? Ask a Mechanic for Answers ASAP
If she can't even use the remote to unlock the door, then this is a battery issue. It is possible there is a problem with the alternator, but we have to start by jump starting the car. Leave the donor car on it for about 15 minutes, then try to start it. If once it's started the battery and brake light are lit on the dash, then it's an alternator issue. If not, then the battery should be tested. It's possible it can't hold a charge anymore.
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just thought I would check on you and see how you made out or if you needed further assistance with this?