No CEL unfortunately as that would help pinpoint potential problems. No codes either. I'll check the backup lights.

The taillights work, but now the engine shuts off when shifted to Park! This is the weirdest problem I have seen in a car!

The headlights, dome lights, radio, A/C light all work. Seems to be just the instrument lights. I will check the taillights tomorrow and post the results.

Thanks for the suggestion. I did check that and it is fine. The lights work in every gear except in Park. They shut off for some reason.

Does anyone know what might cause the dash lights to go off when shifted to park? I have replaced the Ignition switch and ignition key cylinder to no effect. It's a base model 2005 Vibe.