So this happened today. Anyone seen this before?

[joevg3]

Lights are flashing. VCS engine and 4lo. Car runs fine. Never seen this. Thanks - Joe! ***it resolved itself for now - no more lights*** Must have reset the system as I had multiple trips today. Yay!

 

[gasman4u]

check for CEL codes. otherwise, shot in the dark - how old is your battery?

 

[joevg3]

check for CEL codes. otherwise, shot in the dark - how old is your battery? Battery is interstate and about 3 years old.

 

[stonepa]

Loose fuel cap will cause this.

 

[clrussell]

It’s more than likely an evap emissions fault.

 

[saricbell]

That happens on my 2009 (pretty much ever since we bought it in 2013). Give it long enough and it eventually resets itself.

 

[PatrickBateman]

That happens on my 2009 (pretty much ever since we bought it in 2013). Give it long enough and it eventually resets itself.

This is most likely o2 sensor

 

[NikP]

read the codes. Toyota did a poor job with check engine lights and dash messages. There's likely nothing wrong with the VSC system as all these lights tend to come on when a simple check engine light would be more appropriate .

 

[bloc]

read the codes. Toyota did a poor job with check engine lights and dash messages. There's likely nothing wrong with the VSC system as all these lights tend to come on when a simple check engine light would be more appropriate .

This.

The stability control system needs to be able to add throttle in some situations so anything that it thinks is impacting engine power will trigger not only a CEL but VSC and possibly ABS lights.

Either way, all this speculation is pointless when getting real data is as simple as visiting oreilly/autozone or ordering a bluetooth obd adapter from amazon for $30.

Just get the codes.

 

[deltapine1]

o2 sensor or gas cap are likely suspects.

 

[RandyDaytona]

I just had the same lights. But in my case, the truck shuddered slightly at low speeds. Turns out a mouse had chewed through one of the spark plug wires.

 

[RandyDaytona]

I just had the same lights. But in my case, the truck shuddered slightly at low speeds. Turns out a mouse had chewed through one of the spark plug wires.

You probably wouldn’t be laughing about it if it cost you $850 to fix it.

 

[joevg3]

You probably wouldn’t be laughing about it if it cost you $850 to fix it.

That stinks. Sorry to hear that. I laughed because I had to remove a mouse from my heater motor after I heard a weird noise when my fan went on - also saw about 50 pieces of dog food in my engine cabin.

 

[du5tmang]

Had the same lights come on my truck. Took the gas cap off put it back on tight (because of reading this thread) and lights gone! Thank You!

 

[Supra Turbo]

Had similar on my LS. Ended up being O2.