With both of my keys, both with new batteries, the key warning light comes on. Also, for a few minutes after starting up my right hand gauge (fuel, mileage, etc) is blank and then show gibberish and finally, after 3-4 m inutes shows the correct information. Anyone know what the trouble is?

 

Welcome. The display winking out is a common issue for GK5. We have a thread here:

https://www.fitfreak.net/forums/3rd-...y-failure.html

 

The key warning light is a problem with the anti-theft immobilizer system. Is this a new-to-you car? Model year and trim?