I've a TL Magna and the 3 dials below the radio (air direction, fan and temp control) do not work ever since I took my car to the Mitsubishi dealer to fix another problem.
That initial fault had been the red 'SRS' light that kept coming on. That was fixed, but this other problem is now there. Similarly, the glove box light, demister and air selection switches do not work either.
Could these problems be connected?
Mitsubishi said it's "just a coincidence", but could the mechanic have forgotten or messed something up?

I've a TL Magna and the 3 dials below the radio (air direction, fan and temp control) do not work ever since I took my car to the Mitsubishi dealer to fix another problem.
That initial fault had been the red 'SRS' light that kept coming on. That was fixed, but this other problem is now there. Similarly, the glove box light, demister and air selection switches do not work either.
Could these problems be connected?
Mitsubishi said it's "just a coincidence", but could the mechanic have forgotten or messed something up?

Blown HVAC fuse? Just a guess - and an uneducated one at that - but it probably has its own fuse which may have blown.

I've a TL Magna and the 3 dials below the radio (air direction, fan and temp control) do not work ever since I took my car to the Mitsubishi dealer to fix another problem.
That initial fault had been the red 'SRS' light that kept coming on. That was fixed, but this other problem is now there. Similarly, the glove box light, demister and air selection switches do not work either.
Could these problems be connected?
Mitsubishi said it's "just a coincidence", but could the mechanic have forgotten or messed something up?

could have not plugged the connecters back in

Not sure if they would have taken the centre panel out to diagnose a SRS issue to be honest.

I love it these days when Dealers try the old "shit happens" line. No wonder dealers have such a bad name. I would not have accepted this from the dealer personally but often you are powerless to do anything other than not go there again

First of all check fuses, I doubt is a connection issue as your glove box light is a separate thing but all the same, pop off the facia and have a look to be sure. The glove box light, you most likely know this but you have to have your parkers on for it to work, many do not know this.

Not sure if they would have taken the centre panel out to diagnose a SRS issue to be honest.

Yeah my TL did that when I got it, so I just had a look at all the connectors and sure enough the one under the driver's seat was a bad connection. Easy fix.