I was wondering what could be the cause of the "Service Required Light". I plan on calling the Dealership tommorow and dropping by, but I thought I'd come on the forum for some insight. Just yesterday, I changed to my winter tires - yes kind of late, but I had them lying around. So this set does not have the TPMS on them. I expected some sort of notifaction for the fact that I didn't have the TPMS installed at the time. So I leave the garage, get home and no indication - I found this kind of weird, but I'm not complaining. So today after about 40 minutes into driving, the Service Required Light appears. So does anyone have any kind of information in regards to this? Also, if the TPMS was to indicate something, how would that appear. (I don't want to check the manual ) and sharing knowledge is good!

I'm sorry for the crappy picture from my phone.

 

Maybe its Mitsu witch craft, or maybe the turbo sucked in a rabid cat from the street.







Dude who knows, its a big guessing game at this point probably TPMS

 

I'm guessing it is your TPMS flipping out (since your winters don't have TPMS). To get rid of it, try holding down the "INFO" button for a couple seconds, it should go away.

if I'm not mistaken, plenty of X owners that have winter wheels on their cars also didn't put TPMS on (since you'd have to transfer the units from the stock wheels to your winter wheels [the car only allows you to calibrate one set of TPMS at a time...]- big PITA), and holding the info button a couple of seconds after it comes up will get rid of it.

 

It's the TPMS, exactly as the manual says it will be if you change to wheels+tires without TPMS. The service warning icon is even a tire, in case it wasn't obvious.

You really should have bought wheels with TPMS installed on them, instead of settling for a half-baked car where you have to hold down the INFO button all the time to turn off the warning. Not as if TPMS is expensive, but it would definitely be a pain to retrofit at this stage.

If you wanted a car with warning indicators coming on at random all the time, then you should have gone with BMW -- their cars do that kind of thing with the stock wheels (no mods required).

 

So in the case where it's the TPMS. If my tire pressure is low, how does the car indicate this, simply with a "check tire pressure" or something of that sort?

 

Same symbol on your display...tire with a big ! in it. I don't think its a detailed message, just one to tell you to check the pressure in ALL your tires.

 

if the sensors are not in the wheels the light will come on it thinks theres a problem because its not getting the signal from the sensor

 

the thing with that, is it came on the following day, after driving about 40km with the other wheels.

 

There's something about TPMS taking one extra restart of the system to reset properly -- when I first picked up my car from the dealer, the TPMS warning was on, because they had reset the system for the TPMS sensors in my winter rims (I had my second set of alloy wheels put on from the start, since it was virtually winter already when I got the car). There wasn't any real problem, and when I asked him later (at my first oil change), the Mitsubishi mechanic muttered something about it taking a second start for the TPMS system to kick in.

 

Definitely not a detailed message -- which is stupid, because I'd really like to know exactly what the pressure is reading, so that I can distinguish a slow leak from a large gash, and respond accordingly. I guess that ideally, you never see the warning, but having just lived through a very cold winter (huge blizzard here today... the fun just never stops), I know that the warning comes on all the time when the weather is abnormally cold (cold air in the tires means slightly less pressure means the TPMS eventually comes on when it gets really cold).