how to fix Honda Civic 10th Generation (2016-2021) remote start not working

Honda Civic 10th Generation (2016-2021)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

573 words

Problem Statement

Learn how to diagnose and fix remote start issues in Honda Civic 10th Generation (2016-2021). Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is turned off and in park before performing any electrical repairs.
•Disconnect the battery if working on wiring or fuses to avoid shorts.

Symptoms

•Remote key fob not unlocking the doors
•No engine start when the remote start button is pressed
•Check engine light illuminated
•Dashboard lights flicker briefly when attempting to start
•No audible confirmation (horn honk) from the vehicle
•Inability to activate remote start feature from the HondaLink app

Diagnostic Steps

1
Inspect the remote key fob battery and replace if weak or dead.
2
Check the vehicle's battery voltage and ensure it is above 12.4 volts.
3
Scan the vehicle's OBD-II system for any error codes related to the engine or immobilizer system.
4
Verify that the vehicle is in a suitable location for remote start (not in gear, hood closed, doors locked).
5
Inspect the vehicle's fuse box for blown fuses related to the remote start system.
6
Confirm that the remote start feature is enabled in the vehicle's settings.

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

•OBD-II scanner
•Multimeter
•Basic hand tools
•Replacement battery for key fob

Parts Required

•CR2032 battery for key fob
•Replacement fuses as needed

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Symptoms

•Remote key fob not unlocking the doors

•No engine start when the remote start button is pressed

•Check engine light illuminated

•Dashboard lights flicker briefly when attempting to start

•No audible confirmation (horn honk) from the vehicle

•Inability to activate remote start feature from the HondaLink app

Diagnostic Steps

1
Inspect the remote key fob battery and replace if weak or dead.
2
Check the vehicle's battery voltage and ensure it is above 12.4 volts.
3
Scan the vehicle's OBD-II system for any error codes related to the engine or immobilizer system.
4
Verify that the vehicle is in a suitable location for remote start (not in gear, hood closed, doors locked).
5
Inspect the vehicle's fuse box for blown fuses related to the remote start system.
6
Confirm that the remote start feature is enabled in the vehicle's settings.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, basic hand tools, replacement battery for key fob.
Ensure the vehicle is parked in a safe and accessible location and that the engine is off.

2. Key Fob Battery Replacement

Open the key fob using a flathead screwdriver or a similar tool.
Remove the old battery and replace it with a new CR2032 battery, ensuring correct polarity.
Reassemble the key fob.

3. Check Vehicle Battery

Use a multimeter to check the voltage at the battery terminals.
If the voltage is below 12.4 volts, charge or replace the vehicle battery.

4. Inspect Fuses

Locate the fuse box under the dashboard or engine bay.
Remove the cover and inspect fuses related to the remote start feature (refer to the owner’s manual for specific fuse locations).
Replace any blown fuses with new ones of the same amperage.

5. OBD-II Code Scanning

Connect the OBD-II scanner to the vehicle's diagnostic port.
Retrieve any stored error codes and address any issues indicated (e.g., immobilizer codes).
Clear the codes and attempt to use the remote start again.

6. Feature Settings Check

Access the vehicle's settings via the infotainment system.
Navigate to the "Vehicle Settings" and ensure the remote start feature is enabled.
If disabled, enable the feature and test the remote start again.