Hyundai Elantra: Smart Key / Battery replacement
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If the Smart Key is not working properly, try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Remove the mechanical key.
2. Use a slim tool to pry open the rear cover of the smart key.
3. Remove the old battery and insert the new battery. Make sure the battery position is correct.
4. Reinstall the rear cover of the smart key.
If you suspect your smart key might have sustained some damage, or you feel your smart key is not working correctly, contact an authorized HYUNDAI dealer.
Information
An inappropriately disposed battery can be harmful to the environment and human health. Dispose of the battery according to your local law(s) or regulation.
Loss of a smart key & Smart key precautions
Loss of a smart key
A maximum of two Smart Keys can be
registered to a single vehicle. If you
happen to lose your smart key, you
should immediately take the vehicle
and remaining keys to your authorized
HYUNDAI dealer or tow the vehicle, if
necessary...
Immobilizer System
The immobilizer system protects your
vehicle from theft. If an improperly
coded key (or other device) is used, the
engine’s fuel system is disabled...
Other information:
Hyundai Elantra (CN7) 2021-2025 Service Manual: Troubleshooting
TroubleshootingProblem Symptoms TableUse the table below to help you find the cause of the problem. The numbers indicate the priority of the like cause of the problem. Check each part in order.If necessary, replace these parts. Symptom Suspect Area Reference Lower pedal or spongy pedal1...
Hyundai Elantra (CN7) 2021-2025 Service Manual: Mode Control Actuator
Description and operation DescriptionThe mode control actuator is located at the heater unit.It adjusts the position of the mode door by operating the mode control actuator based on the signal of the A/C control unit. Pressing the mode select switch makes the mode control actuator shift in order of Vent → Bi-Level → Floor → Mix...
Categories
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- 7th Gen Hyundai Elantra Owners Manual
- 7nd Gen Hyundai Elantra Service Manual
- Engine Oil
- Integrated Thermal Management Module (ITM)
- Dimensions, Engine specification, Bulb Wattage
- Body Electrical System
- Vehicle Information
Tire Rotation
To equalize tread wear, HYUNDAI recommends that the tires be rotated according to the maintenance schedule or sooner if irregular wear develops.
During rotation, check the tires for correct balance.
When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire pressure, improper wheel alignment, out-ofbalance wheels, severe braking or severe cornering. Look for bumps or bulges in the tread or side of the tire. Replace the tire if you find any of these conditions. Replace the tire if fabric or cord is visible. After rotation, be sure to bring the front and rear tire pressures to specification and check lug nut tightness (proper torque is 79~94 lbf·ft [11~13 kgf·m]).
