The trip computer is a microcomputer- controlled driver information system that displays information related to driving.
Information
Some driving information stored in the trip computer (for example Average Vehicle Speed) resets if the battery is disconnected.
Trip modes


To change the trip mode, press the TRIP button on the steering wheel.

Range (1)
Information
Average Fuel Economy (2)
Instant Fuel Economy (3)
This mode displays the instantaneous fuel economy while driving when the vehicle speed is greater than 6.2 mph (10 km/h).
- Fuel economy range: 0 ~ 50 MPG or 0 ~ 30 L/100km

Tripmeter (1)
Elapsed Time (2)
Information
The elapsed time will continue to be counted while the engine is still running (for example, when the vehicle is in traffic or stopped at a stop light.)
Average Vehicle Speed (3)
Information

If the remaining mileage or time reaches 900 miles (1,500 km) or 30 days, the
service symbol (
) will blink for several
seconds each time you set the ignition switch or Engine Start/Stop button to the
ON position.
Information
To change or deactivate the service interval, consult an authorized HYUNDAI dealer.

If you exceed the specified service interval, the service symbol (
)
will blink each time you turn ON the vehicle.
To reset the service interval, press the RESET button for more than 5 seconds and then when the miles and days blink press the RESET button for more than 1 second.
If the service interval is not set, the service symbol (
)
will not be displayed.

This message shows the speed of the vehicle (in mph).
To turn the digital speedometer ON and OFF press the RESET button for more than 1 second when the digital speedometer is displayed.
Trip ComputerHyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
1. Smart key unit2. Body control module (BCM)3. Interior antenna 14. Interior antenna 25. FOB Key6. Start Stop Button (SSB)7.Door handle & Door antenna8. Bumper antenna9. Trunk antenna10. Trunk lid switch
...
Hyundai Elantra AD (2016-2020) Service Manual: Engine Control Module (ECM) Repair procedures
Removal
•
When replacing the ECM, the vehicle equipped withthe immobilizer must be performed procedure asbelow.
[In the case of installing used ECM]
1) Perform "ECM Neutral mode" procedure with GDS.
(Refer to Body Electrical System - "Immobilizer System")
2) After ...