Haven't looked at your vehicle specifically but many vehicles use what looks like a piece of fishing line hooked to the shifter lever that pulls on the spring-loaded indicator. The ones I have seen are usually spring-loaded to go to "park" and the string pulls it down to drive so when that string breaks or becomes disconnected, the pointer stays on "park". You can identify that type by the fact the pointer is always pointing straight up as it slides left and right.
The older style was a metal rod, similar to coat hanger wire, that was slipped into a slot on the shift lever and anchored with a set screw. That type of pointer turned as you moved it, similar to how the hand on a clock turns. If you still have that style, look underneath for a loose set screw.
If you have the string type, be careful with the hook it attaches to. On older Caravans, for example, that hook could be bent to adjust how far the pointer moved from end to end. On newer models that was all built in to the assembly and that assembly had a small adjusting screw. The older pointers were on a slide. Pulling it way down to "low" caused the pointer to slide on the moving bracket to self-adjust. Friction held the pointer in adjustment after that.