Check engine, traction control, and VSC light on.

[BCKGUY]

Made a Vlog on gas cap issue and check engine, VSC off, and traction control lights. Check it out: https://youtu.be/SGPMo3bRROE
Lights didn't go off immediately. Had to reset battery. Code reader from Autozone said likely culprit was gas cap. We shall see!

 

[Arthur4R]

Made a Vlog on gas cap issue and check engine, VSC off, and traction control lights. Check it out: https://youtu.be/SGPMo3bRROE
Lights didn't go off immediately. Had to reset battery. Code reader from Autozone said likely culprit was gas cap. We shall see!

I had the same issue, Replaced gas cap from Toyota and disconnected the battery for a day. Put everything back and no more lights. Drove over 1000 miles without an issue.

 

[BlackWorksInc]

Next time I would post the DTCs you got as people will erroneously assume that all MIL, VSC, and TRAC warning lamp events are gas cap related (which is not to say they can't be, but it's an erroneous assumption).

Post Note-

Some members have had dodgy luck with non-factory gas caps not sealing correctly and have ended up going back to a factory one.

 

[GoPats]

Post Note-

Some members have had dodgy luck with non-factory gas caps not sealing correctly and have ended up going back to a factory one.

When mine had this problem, I got a new cap at Autozone (Duralast), and it felt really loose. The design of that cap, however, allowed me to make a modification that seems to be working well. Unlike the OE, the seal is "slotted", so I went to the hardware store and got an oring the right size to fit in there. That made it seal much better, and it's been fine since (~1 year).

 

[Old4runnerguy]

Gas cap?

 

[Urbanite]

When this happened to me, a new OEM gas cap resolved the problem. I love the "thump" my new gas cap makes when you remove it. This tells me it's pretty tight and what I'm hearing is pressure release from gas tank.

 

[LarryFahn]

I have an issue now. Crawl Control is blinking, Check Engine and Trac Off are lit up. Anyone deal with this?