Hyundai Elantra: Smart Key System / Specifications

Hyundai Elantra (CN7) 2021-2025 Service Manual / Body Electrical System / Smart Key System / Specifications

Specifications

Smart Key Unit

Items	Specification
Rated voltage	DC 12V
Operating voltage	DC 9 - 16V
Operating temperature	-22°F to 167°F (-30°C to 75°C)
Load	Max. 4mA (When welcome light function off)

RF Receiver

Items	Specification
Frequency	433.92 Mhz
Antenna type	FSK (Frequency Shift Keying)

Smart Key Fob

Items

Specification

Battery

Lithium battery 3V 1EA

Distance

30m from vehicle, RF : 30m, Passive(LF) : 0.7m

Battery life

More than 2 years (10 times / a day)

•	An inappropriately disposed battery can be harmful to the environment and human health.

•	Dispose the battery according to your local law(s) or regulation.

Push buttons

3 (Door lock / unlock, Trunk)

Frequency(Rx)

125 kHz

Frequency(Tx)

433.92 MHz

Numbers

2EA

Antenna

Items	Specification
Rated voltage	DC 12V
Operating voltage	DC 9 - 16V
Operating temperature	-22°F to 167°F (-30°C to 75°C)
Frequency	125kHz
Numbers	Interior(2EA), Door(2EA), Bumper(1EA), Trunk(1EA)

Components and components location

Component Location (1)1. Smart key unit (IBU)2. Interior antenna 23. Door outside handle4. Interior antenna 15. BuzzerComponent Location (2)1. Trunk open switch2...

Smart Key

Repair procedures Smart KeySmart Key Code Saving1.Connect the DLC cable of Diagnostic tool to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on Diagnostic tool...

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Troubleshooting

TroubleshootingIgnition System Symptom Suspect Area Remedy Engine will not start or is hard to start (Cranks OK)Ignition lock switchInspect ignition lock switch, or replace as requiredIgnition coilInspect ignition coil, or replace as requiredSpark plugsInspect spark plugs, or replace as requiredIgnition wiring disconne..

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Defogging logic

To help reduce the probability of fogging up the inside of the windshield, the air intake or air conditioning are controlled automatically according to certain conditions such as or position. To cancel or return the defogging logic, do the following Manual climate control system 1. Turn the ignition switch to the ON position. 2. Select defroster mode (). 3. Press the air intake control bu..

Steering wheel audio control

The steering wheel audio control switches are installed for your convenience.

NOTICE

Do not operate audio remote control buttons simultaneously.

VOLUME (VOL + / VOL -) (1)

Move the VOLUME toggle switch up to increase volume. Move the VOLUME toggle switch down to decrease volume.