Q: trying to connect new Iphone 6S to bluetooth in rav 4

Hi constancefromlusby,
 

Thanks for contributing to the Apple Support Communities.
 

The way to connect your iPhone 6s to your Rav4 depends on how the car stereo is designed to work with the device. If it uses Bluetooth, try the following from Get help connecting your iPhone, iPad, or iPod touch with your car stereo:
 

If you're using Bluetooth

1. Check your car stereo's user manual for steps about pairing with a Bluetooth device.
    
2. On your iOS device, swipe up to open the Control Center, then taptwice to turn Bluetooth off and back on.
    
3. Restart your iOS device.
    
4. On your iOS device, unpair your car stereo. On your car's display, unpair your iOS device and any other devices. Restart your car and your iOS device, then pair and connect again.
    
5. Update your iOS device.
    
6. Install any firmware updates for your car stereo.
    
7. If you still can't connect, Contact Apple Support.

The link above also has information that can help if your car stereo supports CarPlay or USB Playback. 

Best Regards.