[fitgirl2016]

I need replacement mirror but dont know if it was heated or not

 

[Submariner409]

If you have no mirror heat switch on either the door ? or dash mirror controls then maybe no heated mirrors. Somewhere in the cargo or spare tire area there's a "service parts ID" sticker - the RPO (Regular Production Option) codes for what's built into THAT vehicle. Find it and decipher the codes using a correct model year Google search for " XXXX cadillac gm rpo code definitions".

Heated mirrors are further discussed in the owner's manual .............

Typical RPO sticker -

 

[The Mothership]

Yes a wealth of information to be found in the owner's manual!

However I think this may be standard on all vehicles, because anything optional in the owner's manual always starts with "If the vehicle".

 

[WILLY92]

Drivers side mirror is heated on all but the base model. Premium and Performance have both sides heated. They operate when the rear defogger switch is used.

 

[Steelhmr]

Pull the mirror off. It’s easy. If there are wires connected to it, it’s heated.

 

[atfdmike]

Drivers side mirror is heated on all but the base model. Premium and Performance have both sides heated. They operate when the rear defogger switch is used.

I think some also have a dimmer that has wiring to it as well.

 

[CadillacNumber56]

In general, if you have a heated rear window defogger, you have heated mirrors. Both sides. There is no separate switch.

I am pretty sure all SRX of this generation have power mirrors on both sides which means they all have wires.