First of all the bulb is actually clear. The cluster overlay is what's red.
That dealer is full of sh*t. Take the cluster out yourself, pull the bulb and take it with you to any Oreilly's. I've bought them there before. Just stare and compare to make sure you have the correct one. Should run you between $3-$8 per bulb. Check the other bulbs while you have it out as there are multiple ones back there. Heck, it could just be loose for that matter.
Just be careful of the printed circuit board on the back of the cluster where the bulbs twist and lock in as it can be easily damaged.
Or you can bring it to me and I'll do the whole job for $225
