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 Owner's Manual: If the engine overheats

If your temperature gauge indicates overheating, you experience a loss of power, or hear loud pinging or knocking, the engine may be overheating. If this happens, you should: 1. Pull off the road and stop as soon as it is safe to do so. 2. Put the vehicle in P (Park), and set the parking brake...

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Windshield Washers

In the OFF position, pull the lever gently toward you to spray washer fluid on the windshield and to run the wipers 1-3 cycles. The spray and wiper operation will continue until you release the lever. If the washer does not work, you may need to add washer fluid to the washer fluid reservoir...

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.