how to fix the remote start not working on my Volvo XC90 Second Generation (2015-2024)?

Volvo XC90 Second Generation (2015-2024)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

531 words

Problem Statement

Learn how to diagnose and fix the remote start issue in your Volvo XC90 (2015-2024). Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure the vehicle is in a secure location and cannot roll away during diagnostics or repairs.

Symptoms

•Remote start button not responding
•"Remote Start Disabled" message on the dashboard
•Key fob battery appears to be functional (lights up)
•Engine does not start when remote start is attempted
•Vehicle starts normally using the key fob or ignition

Diagnostic Steps

1
Check the key fob battery for proper voltage using a multimeter.
2
Inspect the vehicle's battery voltage; ensure it is above 12.4 volts.
3
Verify if the vehicle is in a suitable environment for remote start (e.g., not in gear, doors closed).
4
Use an OBD-II scanner to check for any trouble codes related to the remote start system.
5
Ensure that the security system is not activated or malfunctioning.
6
Check the vehicle’s settings to ensure remote start is enabled in the infotainment system.

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
•Screwdriver set

Parts Required

•Key fob battery (CR2032 or as specified)

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Diagnostic Steps

1
Check the key fob battery for proper voltage using a multimeter.
2
Inspect the vehicle's battery voltage; ensure it is above 12.4 volts.
3
Verify if the vehicle is in a suitable environment for remote start (e.g., not in gear, doors closed).
4
Use an OBD-II scanner to check for any trouble codes related to the remote start system.
5
Ensure that the security system is not activated or malfunctioning.
6
Check the vehicle’s settings to ensure remote start is enabled in the infotainment system.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, screwdriver set, and a new key fob battery if needed.
Ensure the vehicle is parked safely with the engine off and the key fob within range.

2. Replace Key Fob Battery

Open the key fob using a small flathead screwdriver.
Remove the old battery carefully and note its orientation.
Insert the new battery (CR2032 or as specified) in the same orientation.
Reassemble the key fob and test the remote start functionality.

3. Check and Charge Vehicle Battery

Inspect the vehicle battery terminals for corrosion and clean if needed.
Use a multimeter to measure the battery voltage. If below 12.4 volts, charge the battery using a battery charger.
Recheck the voltage after charging to ensure it holds above 12.4 volts.

4. Reset Remote Start System

Sit inside the vehicle with the key fob.
Turn the ignition to the "ON" position without starting the engine.
Wait for approximately 10 seconds, then turn the ignition off.
Repeat this process three times; on the third time, leave the key in the "ON" position. This will reset the remote start system.

5. Reprogram Key Fob (if necessary)

Access the vehicle's settings through the infotainment system.
Navigate to "Key Fob Settings" and follow the prompts to reprogram the key fob.
Test the remote start function after reprogramming.