how to fix the key fob not working in 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

545 words

Problem Statement

Learn how to diagnose and fix a non-working key fob for Genesis G70 (2017-2023). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Handle batteries with care to avoid short-circuiting.
•Ensure that the vehicle is turned off while replacing the battery to prevent accidental activation of systems.

Symptoms

•Key fob not responding when buttons are pressed
•Vehicle does not unlock or start
•Warning light on the dashboard indicating key fob issue
•Proximity sensor not detecting key fob when inside the vehicle
•Battery in the key fob appears intact but still not working

Diagnostic Steps

1
Check the battery in the key fob using a multimeter to ensure it has sufficient voltage.
2
Inspect the key fob for physical damage or wear, particularly around the buttons and housing.
3
Attempt to reprogram the key fob using the vehicle's onboard diagnostic system.
4
Test another key fob (if available) to determine if the issue is specific to one fob or affects both.
5
Verify that the vehicle's keyless entry system is functioning properly by checking the door sensors and wiring.

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

•Flat-head screwdriver
•Tweezers
•Multimeter
•Owner's manual for reprogramming instructions

Parts Required

•CR2032 battery

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob using a multimeter to ensure it has sufficient voltage.
2
Inspect the key fob for physical damage or wear, particularly around the buttons and housing.
3
Attempt to reprogram the key fob using the vehicle's onboard diagnostic system.
4
Test another key fob (if available) to determine if the issue is specific to one fob or affects both.
5
Verify that the vehicle's keyless entry system is functioning properly by checking the door sensors and wiring.

Solution

1. Battery Replacement

Open the Key Fob
- Use a flat-head screwdriver or a key fob opening tool.
- Carefully pry open the key fob casing without damaging it.
Remove Old Battery
- Note the orientation of the battery (positive and negative sides).
- Carefully remove the old battery using tweezers if necessary.
Install New Battery
- Insert a new CR2032 battery (or the specified type) in the same orientation as the old one.
Reassemble Key Fob
- Snap the key fob casing back together securely.

2. Key Fob Reprogramming

Enter Vehicle
- Ensure that the vehicle is in a secure location and close all doors.
Turn On Ignition
- Insert the key fob into the ignition slot (if applicable) or press the start button without pressing the brake pedal.
Reprogram Key Fob
- Follow the vehicle owner's manual instructions for reprogramming the key fob. This typically involves turning the ignition on and off in a specific sequence while pressing the key fob buttons.

3. Inspect and Repair Keyless Entry System

Visual Inspection
- Check for any loose wiring or damaged connectors at the keyless entry module.
Test Door Sensors
- Ensure all door sensors are functioning properly by pressing the lock and unlock buttons while observing the response.
Repair or Replace Components
- If any sensors or wiring are damaged, repair or replace them as necessary.