Telematics Control Unit
The telematics unit connects the car to mobile networks.
What is Telematics Control Unit?
It enables eCall, apps and updates. It has a SIM card. It may have a backup battery. When older mobile networks such as 2G and 3G are switched off, some older cars lose connected services and may need a hardware update. The unit also collects vehicle data that manufacturers use for services and diagnostics, which is described in the privacy policy.
How it works
The unit sends and receives data.
Why it matters for your car
Network shutdowns can affect older units. Privacy settings vary.
Other terms
- AdBlue Crystallisation (Urea Deposits)
- Airbag Replacement After Deployment
- Blow-off Valve (Diverter Valve)
- Car Alarm
- Charging System Test
- Clear Coat Failure (Lacquer Peel)
- Contact Cleaner (Electrical Cleaner)
- European Accident Statement
- Heated Steering Wheel
- Hydraulic Lifter (Hydraulic Tappet)
- Lean Mixture
- Low SAPS Oil (Low-Ash Oil)
- Model Year
- Power Steering Pump
- Side Window
- Smart Charging (Alternator Control)
- Smart Repair (Small Area Repair)
- Solar Charging
- Unit Injector (Pump Injector)
- Wheel Hub