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She needs at least 6 months of credit history. At that point a credit score will generate.
The key will be a large down payment. This will offset the risk to the bank. Check with the bank she uses most. Get a pre-approval prior to rate shopping at the dealer.
I was given a 0% loan with new credit. It was a 36 month loan and I put over 30% down.
If $1000 per month is her entire HH income, then she should not be picking up an auto loan at this time. It will hurt her more than help her.