how to troubleshoot a key fob that won't work with my Genesis G70 IG (2017-2023)?

Genesis G70 IG (2017-2023)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

533 words

Problem Statement

Learn how to troubleshoot and fix key fob issues for Genesis G70 (2017-2023). Step-by-step guide with diagnostic steps and solutions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Be cautious when using tools to avoid injury or damaging the key fob.

Symptoms

•Key fob not responding when buttons are pressed
•Vehicle not recognizing the key fob within the proximity
•"Key not detected" warning displayed on the dashboard
•Indicators or lights on the key fob not illuminating
•Difficulty unlocking or locking the doors remotely
•Battery low warning from the vehicle's system

Diagnostic Steps

1
Check the key fob battery for corrosion or replace it with a new one.
2
Inspect key fob buttons for physical damage or stuck buttons.
3
Ensure you are within the appropriate range of the vehicle and see if the fob works when close to the start button or door handle.
4
Use an OBD-II scanner to check for any diagnostic trouble codes related to the keyless entry system.
5
Check the vehicle’s main battery voltage to ensure it is fully charged.
6
Attempt to reprogram the key fob according to the manufacturer’s instructions.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Small flathead screwdriver
•OBD-II scanner

Parts Required

•CR2032 or equivalent key fob battery

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Key fob not responding when buttons are pressed

•Vehicle not recognizing the key fob within the proximity

•"Key not detected" warning displayed on the dashboard

•Indicators or lights on the key fob not illuminating

•Difficulty unlocking or locking the doors remotely

•Battery low warning from the vehicle's system

Diagnostic Steps

1
Check the key fob battery for corrosion or replace it with a new one.
2
Inspect key fob buttons for physical damage or stuck buttons.
3
Ensure you are within the appropriate range of the vehicle and see if the fob works when close to the start button or door handle.
4
Use an OBD-II scanner to check for any diagnostic trouble codes related to the keyless entry system.
5
Check the vehicle’s main battery voltage to ensure it is fully charged.
6
Attempt to reprogram the key fob according to the manufacturer’s instructions.

Solution

1. Battery Replacement

Preparation: Gather tools (small flathead screwdriver, new CR2032 or equivalent battery).
Open the Key Fob:
- Use the flathead screwdriver to gently pry apart the key fob casing.
- Take care not to damage the plastic clips.
Replace the Battery:
- Remove the old battery and dispose of it properly.
- Insert the new battery in the correct orientation (+ side facing up).
Reassemble the Key Fob:
- Snap the casing back together until it clicks securely.

2. Key Fob Reprogramming

Enter Vehicle: Sit inside the vehicle with all doors closed.
Turn the Ignition On: Insert the key fob into the slot or press the start button while pressing the brake pedal.
Press the Lock Button: Within 10 seconds, press the lock button on the key fob three times.
Wait for Confirmation: Observe the vehicle’s locks; if they cycle, the key fob is successfully reprogrammed.

3. Key Fob Testing

Test Remote Functions: Once reprogrammed, test the lock, unlock, and trunk release functions.
Test Proximity: Approach the vehicle with the key fob and check if the vehicle recognizes it for entry.