4WD Light Flashing - Safe to drive??

Just fixed my blinking Jimny.
My blink stopped if I turned the car off and back on again.
My 4wd issue was the actuator on the push button case had too little oil to function properly. I could most of the times hear my clicking hubs ok and knew of a leak in the transfer case.
Changed an axle seal and the oil in the case, and after a few minutes of switching and rolling it worked fine again.

Hi Busta, you're a braver man than I if you chuck it into 4wd doing 60mph... I've been going off the first part of the do's and dont's on the BJ website:

www.bigjimny.com/mediawiki/index.php/DO%...%27T%27s_with_Jimnys

This sounds quite possible with what I've seen under mine, thanks for posting this I will pass the information along.

Not sure if I would push the buttons doing 60mph on gravel, snow or ice either
Most likely would keep my eyes on the road and hands on the wheel..

But 60kmh is no problem engaging or disengaging the 4wd.
No practical need for the 4wd above 60kmt in my opinion.

You shouldn't be afraid of selecting 4wd at speed. Whilst all my Jimnys have had manual transfer cases, all have effortlessly shifted in and out of 4wd while moving at any speed. The only time you will ever cause damage by selecting 4wd is when the front and rear axles are turning at different speeds, in which case the hubs will engage with a bang. However that is much more likely to happen at low speeds than high. I do agree with Yakuza that in such a low powered car you never need to use 4wd at high speeds, but that doesn't mean you can't.
The wiki refers to a bang when returning from 4wd to 2wd. This is a different issue, and is caused by the release of tension in the drivetrain. As such the bang itself isn't going to cause any problems. However, whenever this occurs it is a reminder that you were using 4wd when you shouldn't have done, putting unnecessary stress on the drivetrain that, thankfully, has now been released. So I definitely don't agree with the idea of reversing every time you wish to switch back to 2wd. Better to do it while driving normally and if you do hear a bang take it as a lesson that you already did something wrong.

All true Busta.

I also had problems with the 4wd this winter as it would not get in or out of 4x4 when it was more than minus 5 degrees. This could have been the actuator as well and too low oil level.
Or as my first though, coondensation in the vacuum system turning to ice.