4 wheel drive indicator lights

[pashka]

Hi
I have read the posts and replies regarding the green lights indicating wheel drives as my bottom right light is off and I didn`t know how to change the globe I will use the info given by Redvers, thanks, I have another problem as well. The centre light (orange) starts to flash after I have driven on the highway for about 30 mins. After I stop for a while it is fine until I drive for another few minutes. As I am going on a long trip through the Kruger Park can anyone tell me what the problem is , can I drive the car and how to fix it. I did suspect that it was the tyres and the sensors getting hot but but thats only from me and I know nothing.
Any help or advice will be much appreciated

[4ePikanini]

your vacuum solenoids are starting to pack up or you have a vacuum leak.

If you don't have time to fix it, then just leave it in 4H - the light won't come on in 4H.

[pashka]

Thanks for your quick reply, much appreciated.
Is it still ok to drive on the highway as I probably can`t get it fixed before I leave. It only comes on when I am drivimg long distance and never round town