Master System Warning Light On

I purchased my 2016 Tacoma TRD OR on November 13. This morning what looks to be the "Master System Warning" Light came on, on my way to work. Haven't called the dealership yet. Any ideas what it could be? Just tripped 4500 miles this morning on the way to work, so maybe something to do with the 5k maintenance?

 

http://dashboardsymbols.com/2010/09/master-warning-light/

 

That's it, just in the amber/yellow color.

 

Yeah, I will have to give them a call. Just thought I would check on here too.

 

http://www.toyota.com/t3Portal/document/om-s/OM04005U/pdf/OM04005U.pdf

Page # 519

 

Just what I needed, I just ran out to check it out. Light went off, I think it may have been related to tire pressure. Said I was running 29 psi in all 4 this morning, it got quite a bit colder here in VA this weekend. I will definitely keep an eye on it.

 

It went on because you are at 4500 miles. Time for first service.

 

I don't think the 4 cylinder has the oil level sensor???

 

OP, at 4500 miles EXACTLY a light will come on the dash telling you that you are 500 miles from your FIRST service. I was on a trip 500 miles from home and I stopped for gas ... pulling out of the gas station, and I noticed the light on and thought something was wrong. I was going to find the closest dealership ... then I thought ... RTM ( Read The Manual)! I found it on page 514.

 

Hope not. Don't see or smell any smoke.

 

Cool, that was my first guess. Thanks guys.

 

Sorry to bump an old post, but I just got the same thing at 4,500 miles. Why am I only seeing the master warning light (exclamation inside of triangle) and not a maintenance required light? There is also no message under the message screen on the multi-function display.

 

Maintenance light. Mine just kicked on a couple days ago too. Bottom of page 527...

 

Thanks. That's got to be it. Just curious why the maintenance message doesn't show up. It says no messages when I go to that display.

 

Ive noticed that as well. A few have come into work complaining about the warning light on with no message. The message comes on when first starting the truck but then goes away but leaves the warning light on and no message in that tab.

 

Clicked on the thread thinking it was about the Sega Master System. I was disappointed.

 

Mine did the same, but you will notice that when you start the truck you will get a short message that flashes up about maintenance being required. You can turn it off by navigating through the settings menus on the main big screen if I recall.

 

If you go past the 5000 mile multiple, the System Messages display will stay lit, and indicate the maintenance is required. Also, the closer to the 5000 mile multiple, the longer the message will display at start of the vehicle.

 

Went out after work to drive home and the light is no longer on. I never had a message on the display even when first starting.