my Ram 1500 DT (2019-Present) remote start not working what should I check

Ram 1500 DT (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

467 words

Problem Statement

Learn how to diagnose and fix remote start issues in 2019-Present Ram 1500 DT. 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

•Disconnect the battery before working on electrical systems to prevent short circuits.

Symptoms

•Remote start button unresponsive
•Check engine light illuminated
•Vehicle does not start when remote start is activated
•Key fob battery low or dead
•Security system warning light activated
•Engine cranks but does not start

Diagnostic Steps

1
Check the battery level of the key fob and replace it if necessary.
2
Verify that the vehicle is in a location where remote start is allowed (not in a garage, etc.).
3
Scan for error codes using an OBD-II scanner to identify any potential issues.
4
Inspect the vehicle's security system functionality, ensuring it is not preventing remote start.
5
Confirm that all doors are closed and locked, as some systems require this for remote start.
6
Test the remote start system with a different key fob, if available.

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
•Small flathead screwdriver

Parts Required

•Key fob battery (CR2032 or equivalent)

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Diagnostic Steps

1
Check the battery level of the key fob and replace it if necessary.
2
Verify that the vehicle is in a location where remote start is allowed (not in a garage, etc.).
3
Scan for error codes using an OBD-II scanner to identify any potential issues.
4
Inspect the vehicle's security system functionality, ensuring it is not preventing remote start.
5
Confirm that all doors are closed and locked, as some systems require this for remote start.
6
Test the remote start system with a different key fob, if available.

Solution

1. Preparation

Gather tools and ensure the vehicle is parked safely with the ignition off.
Tools required: OBD-II scanner, multimeter, and a new key fob battery (if needed).

2. Key Fob Battery Replacement

Remove the key fob cover using a small flathead screwdriver to pry it open.
Replace the old battery with a new one, ensuring the correct polarity (+/-).
Reassemble the key fob cover securely.

3. Security System Reset

Locate the vehicle's battery and disconnect the negative terminal to reset the security system.
Wait for at least 10 minutes before reconnecting the negative terminal.
Reconnect the battery, ensuring a secure connection.

4. Check Remote Start Settings

Use the vehicle's infotainment system to navigate to the settings menu.
Locate the "Remote Start" option and ensure it is enabled.
Save any changes and exit the settings menu.

5. Test Remote Start Function

Ensure all doors are closed and locked.
Press the remote start button on the key fob to initiate the remote start.
Observe if the engine starts successfully; if not, repeat the diagnostic steps.