Support Document

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The IOX-KEYBOX allows remote access to a vehicle without requiring an embedded key or digital OEM support. The device supports multiple markets including corporate car sharing, consumer car sharing, and traditional car rental services.

Top Features:

  • Easy to install in any vehicle without permanent modifications.
  • Allows the vehicle fob to be removed without damage.
  • Allows for flexible use cases depending on the customer.

IOX Hardware Technical Specifications



164 x 139 x 61 mm


0.6 kg (Excludes FOB weight)

Keyfob Compatibility

IOX-KEYBOX Keyfob Catalog

Temperature Range

-15 C to +60 C (FOB dependent for ranges from -15 C to -30 C)

Protection Class



Voltage Range

9 V - 16 V (24 V not supported)

Current (Avg)

2.5 mA (150 ms BLE scan every 3 s)

Bluetooth Module

BLE 5.1




Male Mini-USB Type-B connector: Daisy chain power and CAN in

Female Mini-USB Type-B connector: Daisy chain power and CAN out

Harness Length

5 m


  • Compliance (Pending Approval): CE, FCC, ISED, RoHS, REACH, WEEE, UKCA, E-Mark


North America

  • Canada
  • United States of America

Europe (Schengen Area)

  • Austria
  • Belgium
  • Czech Republic
  • Croatia
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Greece
  • Hungary
  • Iceland
  • Italy
  • Latvia
  • Liechtenstein
  • Lithuania
  • Luxembourg
  • Malta
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Slovakia
  • Slovenia
  • Spain
  • Sweden
  • Switzerland

British Isles

  • Great Britain
  • Ireland

*Certification is pending full approval in the EU & British Isles.

IOX Installation Instructions

‼ WARNING: Prior to IOX-KEYBOX installation, read and follow GO device installation instructions (/ to both verify any existing GO device installation is correct and that you are qualified to complete this IOX-KEYBOX installation. Incorrect installation of either the GO device, and/or IOX-KEYLESS can result in loss of vehicle control and serious injury.

‼ WARNING: Prior to IOX-KEYBOX installation, read and follow Important Safety Information and Limitations of Use, located at the end of the document. Always read and follow all safety information to prevent loss of vehicle control and serious injury.

✱ NOTE: It is recommended that the GO device and the IOX-KEYBOX are installed in a vehicle with an appropriate T-harness to install the devices away from the OBD port (to reduce the risk of accidental unplug). The T-harness is also used to install another device into the OBD port without having to remove the GO9 device. The most common harness is the HRN-GS16K2 - harness installation depends on the vehicle. Please refer to the appropriate installation instructions for install.

Installing the IOX-KEYBOX


Unplug the GO device from the vehicle and remove the GO device’s IOX expansion port cover.

Also take note of the GO device’s serial number, as this will be required later to verify the installation.


Plug the 90° USB connector from the IOX into the GO device. Secure the USB connector using a cable tie. Please note that over-tightening the cable tie may damage the USB connector.

NOTE: Insert the USB connector in the orientation displayed in the image.


Choose an appropriate location to mount and conceal the IOX as described in the IOX-KEYBOX Reference Guide . The IOX can only be mounted in select locations to ensure vehicle operator safety. For a more detailed overview of the installation options, refer to the IOX-KEYBOX Reference Guide.

NOTE: Choose a location where the IOX-KEYBOX does not interfere with the safe operation of the vehicle, and cannot become a hazard in the event of an accident. Keep the routing of the IOX wire in mind when selecting a location for the IOX casing.

WARNING! If the IOX-KEYBOX is installed inside the cabin area or cargo area of a vehicle, it must be contained or otherwise secured to the vehicle to prevent it from becoming a projectile in the event of a collision. Failure to properly secure the IOX-KEYBOX could result in serious personal injury and/or vehicle damage.


Once you connect the IOX-KEYBOX to the GO device, plug in the GO device and immediately start the vehicle. The GO device will enter debug mode.


Once the device is connected and receives power, the LEDs on the front of the device start blinking then turn solid when completing the actions below:

Red LED — Device configuration

Green LED — Cellular network connectivity

Blue LED — GPS network connectivity

The device will emit two quick beeps every 60 seconds during setup. Initial startup may take several minutes to complete.


Navigate to to verify that the device is communicating.

  • In the Installer information section, enter the installer’s name and company name. Select the next section.
  • In the Device serial number section, enter the 12-digit alphanumeric serial number, located on the bottom of the device, then click Validate. Select the next section.
  • In the Device status section, review the status of the device. The PASS status indicates the device communicated with the network in the last 24 hours. The FAIL status indicates the device has not communicated with the network in the last 24 hours. Select the next section.
  • In the Vehicle section, enter the vehicle-related information.

NOTE: If the device is not communicating, please ensure the device is installed correctly and try again.

Termination Shunt

The IOX comes with a termination shunt installed in the expansion port. If you plan to install more than one IOX in a daisy chain, you must remove the shunt from each device in the line, except for the last IOX connected. The shunt must remain in the last IOX and secured with a zip tie.

The shunt in the last IOX device ensures the GO device detects and configures the IOX as effectively as possible.

NOTE: Failure to install the shunt in the last IOX may affect IOX communication. To ensure the IOX communicates, please secure the shunt with a zip tie.

Figure 1: Termination shunt installed

Figure 2: Termination shunt not installed

Important Safety Information and Limitations of Use

For the latest version of Limitations of Use, please visit:

WARNING! Do not attempt to install, configure or remove any product from any vehicle while the vehicle is in motion or otherwise in operation. All installation, configuration or removal must be done only in stationary vehicles which are securely parked. Attempting to service units while being operated could result in malfunctions or accidents, leading to death or serious personal injury.

WARNING! All in-vehicle devices and related cabling must be securely fastened and kept clear of all vehicle controls, including accelerator, brake and clutch pedals. You must inspect devices and cabling on a regular basis to ensure all devices and cabling continue to be securely attached. Loose cabling or devices may impede the use of vehicle controls, resulting in unanticipated acceleration, braking or other loss of vehicle control, which could lead to death or serious personal injury. Improperly fastened in-vehicle devices may detach and impact operators upon sudden acceleration or deceleration, which may cause injury.

WARNING! If at any point after an in-vehicle device is installed a warning light illuminates on the vehicle dash or the vehicle stalls or has a marked drop in performance, shut off the engine, remove the device, and contact your Reseller. Continuing to operate a vehicle with these symptoms can cause loss of vehicle control, and serious injury.

WARNING! Your in-vehicle devices must be kept clear of debris, water and other environmental contaminants. Failure to do so may result in units malfunctioning or short-circuiting that can lead to a fire hazard or vehicle damage or serious injury.

WARNING! Do not attempt to remove the devices from the vehicle in which they are originally installed for installation in another vehicle. Not all vehicles share compatibility, and doing so may result in unexpected interactions with your vehicle, including sudden loss of power or shutdown of the vehicle’s engine while in operation or cause your vehicle to operate poorly or erratically and cause death or serious injury and/or vehicle damage.

NOTICE — This product does not contain any user-serviceable parts. Configuration, servicing, and repairs must only be made by an authorized reseller or installer. Unauthorized servicing of these products will void your product warranty.

Regulatory Statements

Warning: RF Exposure Compliance

The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Users and installers must be provided with antenna installation instruction and transmitter operating conditions for satisfying RF exposure compliance.

L'antenne ou les antennes utilisées pour cet émetteur doivent être installées pour fournir une distance de séparation d'au moins 20 cm de toutes les personnes et ne doivent pas être co-localisées ou fonctionner en conjonction avec une autre antenne ou émetteur. Les utilisateurs et les installateurs doivent recevoir des instructions d'installation de l'antenne et les conditions de fonctionnement de l'émetteur pour satisfaire la conformité à l'exposition aux RF.


CAN ICES-003 (B) / NMB-003 (B)

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:

  1. This device may not cause interference.
  2. This device must accept any interference, including interference that may cause undesired operation of the device.

L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :

  1. L’appareil ne doit pas produire de brouillage;
  2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.


This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by Geotab could void the user’s authority to operate the equipment.


Product Wireless Information 13.56 MHz: Max -6.52 dBuA/m H-Field strength

2400-2483.5 MHz: Max 0.3 dBm EIRP


Wir besitzen keine Versand- und Lagerfläche in Deutschland und sind nicht von der Rücknahmepflicht nach § 17 ElektroG betroffen.

IOX-KEYBOX is manufactured by WITTE:digital, A Business Unit of WITTE Automotive GmbH, Hoeferstr. 3-15, D-42551 Velbert, Germany