I have a 2005 S-Type Jaguar, and I've been experiencing an issue for about 6 months now. When I start the car, the radio and climate control lights don't display until I've been driving for a while. I tried replacing the radio, but the problem persists. Whatever settings were on the radio and climate control when I turned off the car are the ones I have to deal with until the display lights come back on the next day. I could really use some help with this. Thank you!

 

Are those things getting power?
Do you have a meter so you can troubleshoot this?
Do you have the electrical diagrams for your car?

Hard to say without doing some troubleshooting?
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The description you give suggests that your battery is marginal. Yes, the engine starts, but the electronic modules are not receiving sufficient voltage until you have driven far enough/long enough to bring the battery charge up. Battery first, before looking for any other cause.

 

Very good point by Sov211! Battery should be the first stop when troubleshooting these cars.
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