I agree with everyone that wrote that 1.5 mA is a negligible load on a car battery. Sustained current of one hundred times as much current is the usual threshold for concern.
For reference, a 40 AH battery will lose less than 10% capacity in 24 hours with a 150 mA constant load. The recommended battery for your vehicle is group 124 R and typically they have 60-80 AH capacity depending on the brand, the temperature, and whether it’s getting a full charge.
The 2008 Hyundai Veracruz alternator has an integrated regulator and that’s why it is normal for it to draw a tiny amount of current when idle.
As a side note, I have seen many people that should know better using a clamp on, rather than series connected meter to look for low current loads on vehicles. Clamp on meters are inherently sensitive to magnetic fields and a low current reading can be an artifact that shouldn’t be relied on.
Most modern vehicles have powered devices for up to 15 minutes after shutting off the ignition and closing all the doors. Using the remote door lock, or leaving the key fob within range may have an additional effect.