why is my Ram 1500 DT (2019-Present) key fob not working for remote start?

Ram 1500 DT (2019-Present)

Error Codes

30-60 minutes

Time

medium

Difficulty

medium

Severity

3 min read

563 words

Problem Statement

Learn how to diagnose and fix key fob issues for remote start in Ram 1500 DT (2019-present). Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

30-60 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe environment and not running during the process

Symptoms

•Key fob buttons unresponsive
•Remote start feature fails to activate
•Check engine light illuminated
•Battery in key fob is dead or weak
•Other functions of the key fob may still work
•Intermittent operation of remote start feature

Diagnostic Steps

1
Check the key fob battery and replace it if necessary
2
Inspect for physical damage on the key fob
3
Verify vehicle settings to ensure remote start is enabled
4
Check for DTCs using an OBD-II scanner
5
Test key fob range by standing close to the vehicle
6
Resynchronize the key fob following the vehicle's procedure

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

•Small screwdriver
•New battery (typically CR2032)
•OBD-II scanner

Parts Required

•Key fob battery (CR2032)

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Diagnostic Steps

1
Check the key fob battery and replace it if necessary
2
Inspect for physical damage on the key fob
3
Verify vehicle settings to ensure remote start is enabled
4
Check for DTCs using an OBD-II scanner
5
Test key fob range by standing close to the vehicle
6
Resynchronize the key fob following the vehicle's procedure

Solution

1. Preparation

Tools Required: Small screwdriver (for key fob), new battery (typically CR2032), OBD-II scanner.
Safety Warnings: Ensure the vehicle is in a safe environment and not running during the process.

2. Replace Key Fob Battery

Use a small screwdriver to carefully open the key fob casing.
Remove the old battery and replace it with a new battery, ensuring the correct polarity.
Reassemble the key fob and test the remote start function.

3. Inspect and Clean Key Fob

Examine the key fob for any visible damage or wear.
Clean the contacts inside the fob with isopropyl alcohol and a soft cloth to ensure a good connection.
Reassemble the key fob and check if the remote start works.

4. Verify and Adjust Vehicle Settings

Start the vehicle and access the settings via the infotainment system.
Navigate to the remote start settings and ensure the feature is enabled.
Make any necessary adjustments to the settings.

5. Resynchronize the Key Fob

With the key fob and the vehicle nearby, insert the key into the ignition and turn it to the "On" position without starting the engine.
Press the "Start" button on the key fob while the ignition is in the "On" position.
Turn off the ignition and test the remote start function.