Module, Radio Receiver: Description
The radio (also known as the radio module) can be identified by sales codes RA2, RA3 or RA4. There is one distinct chassis design for all radios. The base radio (Sales Code RA2) and the premium radio (Sales Codes RA3 or RA4) have the electronics mounted parallel to the face plate in an aluminum chassis.
RA2 - The RA2 radio has a 127 millimeter (5 inch) touchscreen with hard keys on the faceplate. RA2 radios with control knobs have an integrated center stack that allows the HVAC system to be controlled with the touchscreen, or the redundant controls. There is no external hands free module, all hands free functions are integrated into the radio. An optional remote mounted media hub contains access ports for a 3.5 mm auxiliary audio plug, a powered Universal Serial Bus (USB) connector and a Secure Data (SD) card slot.
- 127 mm (5 inch) touchscreen
- AM/FM receiver
- satellite radio receiver (optional)
- Bluetooth™ connectivity for hands-free phone; streaming audio; voice commands
RA3 or RA4 - The RA3 or RA4 radio is identified by a 213.36 mm (8.4 inch) color touch screen display. The RA3 and RA4 offer High Definition (HD) radio reception and can be identified by the HD symbol located on the screen when the radio is in radio mode. If the radio will not power up, the only way to identify the system is through a direct Single VIN inquiry using the TechConnect application on the DealerConnect web site. The only way to tell the difference between the two radios is whether or not there is a NAV button on the main menu. The RA4 is the only radio equipped with NAV.
- 213.36 mm (8.4 inch) color touchscreen display
- AM/FM/Remote Aux/USB/SD receiver
- satellite radio receiver (optional)
- factory installed GPS navigation (RA4 only)
- iPod support via USB
- remote steering wheel mounted controls
- Bluetooth™ connectivity for hands-free phone; streaming audio; voice commands
- climate control integration
- Electronic Vehicle Information Center (EVIC) personalization (optional)
- free form Short Message Service (SMS) dictation (subscription required)
- HD radio receiver
- SOS automated calling
- remote CD player (optional)
- remote services - door lock/unlock, remote start, panic (subscription required)
The radio contains a microcontroller and programming that allows it to communicate with other electronic modules in the vehicle over the Controller Area Network - Interior High Speed (CAN-IHS) data bus. In vehicles equipped with the RA3 or RA4, the radio also uses electronic message communication with other electronic modules in the vehicle over the CAN-C data bus. Refer to COMMUNICATION, DESCRIPTION .
The radio cannot be adjusted or repaired. If an radio is damaged or ineffective, it must be replaced. The external AM/FM antenna and the external combination antenna can be repaired separately from the radio. The radio software is flash programmable through the USB port.