I don't think that applies because you're still on the title to the vehicle.
Thus, it is your property - - with a lienholder maintaining its lien.
This is especially true if your chapter 13 agreed to pay this debt. In that case (which I assume is the case), you were not discharged of this debt and your ownership interest is still intact until the lender sues for possession of the property or to collect the outstanding balance.
At that point, you could ask the court to order the creditor to sell the vehicle and place the money received from the sale on your balance.
Had you filed chapter 7 bankruptcy, I would agree that you could claim the property as abandoned by the creditor, etc. But, that would only apply if you were discharged of owing the debt and surrendered any claim or ownership in the vehicle to the lender. But, if you filed a chapter 13, that's not likely what you did.
However, I do not think you can send an abandoned property notice to the lender - - because it is your property.