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

Ram 1500 DT (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

502 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

•Ensure the vehicle is in a well-ventilated area when testing the remote start function.

Symptoms

•Remote start button on key fob does not initiate the engine
•No response from the vehicle when attempting to start remotely
•Dashboard lights or indicators may not illuminate
•Check engine light may be illuminated
•Security system light may flash or stay on

Diagnostic Steps

1
Check the key fob battery: Replace if weak or dead.
2
Ensure the vehicle is in park: Attempting to remote start while in gear may prevent activation.
3
Verify if all doors are closed: Open doors can disable remote start.
4
Scan for error codes using an OBD-II scanner: Identify any stored codes that may affect the remote start system.
5
Inspect the vehicle’s battery voltage: Low voltage can affect electronic systems.
6
Check the remote start system settings in the vehicle's menu: Ensure the feature is enabled.

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 screwdriver

Parts Required

•CR2032 battery

Related Faults

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Diagnostic Steps

1
Check the key fob battery: Replace if weak or dead.
2
Ensure the vehicle is in park: Attempting to remote start while in gear may prevent activation.
3
Verify if all doors are closed: Open doors can disable remote start.
4
Scan for error codes using an OBD-II scanner: Identify any stored codes that may affect the remote start system.
5
Inspect the vehicle’s battery voltage: Low voltage can affect electronic systems.
6
Check the remote start system settings in the vehicle's menu: Ensure the feature is enabled.

Solution

1. Key Fob Inspection

Sub-steps:
1. Remove the battery cover of the key fob using a small screwdriver.
2. Replace the battery with a new CR2032 battery, ensuring correct polarity.
3. Reassemble the key fob and test the remote start function.

2. Vehicle System Check

Sub-steps:
1. Open all vehicle doors and ensure they are securely closed.
2. Place the gear selector in the "Park" position.
3. Attempt to use the remote start feature again.

3. Error Code Retrieval

Sub-steps:
1. Connect the OBD-II scanner to the vehicle’s diagnostic port.
2. Follow the scanner prompts to retrieve stored trouble codes.
3. Note any codes related to the remote start system and address the underlying issues.

4. Battery Voltage Test

Sub-steps:
1. Use a multimeter to check the vehicle's battery voltage; it should be around 12.6 volts.
2. If voltage is low, charge or replace the battery as needed.
3. Retry the remote start function.

5. Remote Start Settings Verification

Sub-steps:
1. Turn on the vehicle and navigate to the settings menu on the dashboard screen.
2. Locate the remote start settings and ensure it is enabled.
3. Save any changes and exit the menu.