I have a 2013 GS 350 and it seems to idle very high when it's cold outside. It's been 35 degrees and lower and my car idles between 1000 and 2000 rpm's for close to 10 minutes. When it's warm it then idles normally. I've never had a car do this. Does anyone know if this is noel for a 2013 GS 350?

 

100% normal for a Lexus

 

Yup. Mine does the same thing at a cold start, even at 95 degrees.

 

I appreciate the replies!

 

Are you just leave the car idling for 10min for the car to "warm up". You don't have a carburetor, you don't need to do this.
Once the car is safe to drive, you should get on with it and go (but at a reasonable pace).

For those sticking with the obsolete advice to let the car warm up until rpms drop: here's the argument. What does the car want to do? It is reving higher to warm up faster. Help it achieve what it wants to do.

 

While this is true, I hate how damn lazy the car is when cold!

 

Alternatively, the OP can move from MI to San Diego and avoid the high idle

 

It happens when I'm driving for the first 10 minutes when I come to a stop. It seems to only happen when it's pretty cold outside. I just bought this car and it's my first Lexus in over ten years. Just wanted to make sure there is not an issue with the ECM or anything else.

 

Mine does that too. I usually let it warm up for like 30 seconds to a minute while I get the heater and stuff set how I want it and then drive it slowly until it warms up. It's not good for the car to be driven hard while the engine and transmission are cold and the fluids are cold.

 

When the temperature drops below 40F, I wait at least 5 - 10 minutes before I start driving.

 

Mine does it, but drops the idle quickly after shifting into drive. If that is a means to make the engine heat up faster and get warmer air going more quickly by design, seems like more more smart implementation of an idea by the engineers.

 

this is what happens with mine...

 

Mine is the opposite. Since the cold air is higher density, and the car is wanting to idle high to warm up, you can punch it and it will go. Feels like the Sport mode is on when it's not. I don't advocate driving a cold engine hard but I have done it once or twice for a few seconds.

 

While Canadians in Victoria and Vancouver BC and in Halfax NS don't experience frigid temperatures, for many of us it is part of a Canadian winter. Here is a post from Natural Resources Canada (the CAA reference this), -18 Celsius is 0 Fahrenheit.

http://oee.nrcan.gc.ca/transportation/idling/14743