my Ram 1500 DT (2019-Present) key fob isn't working, how do I fix it?

Ram 1500 DT (2019-Present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

476 words

Problem Statement

Learn how to diagnose and fix a non-working key fob for 2019 Ram 1500 DT. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is turned off before working on the key fob.

Symptoms

•Key fob buttons unresponsive
•No signal when pressing the key fob
•Warning light on the dashboard indicating key fob issue
•Inability to unlock or start the vehicle remotely
•Low battery warning for the key fob (if applicable)

Diagnostic Steps

1
Inspect the key fob for physical damage or signs of wear.
2
Replace the battery in the key fob with a new one.
3
Check the vehicle’s battery voltage to ensure it is charged.
4
Attempt to reprogram the key fob using the vehicle's onboard settings.
5
Verify if the key fob works within proximity to the vehicle.
6
Use an OBD-II scanner to check for any related error codes.

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

•Flat-head screwdriver
•OBD-II scanner

Parts Required

•Key fob battery (CR2032 or as specified)

Related Faults

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Diagnostic Steps

1
Inspect the key fob for physical damage or signs of wear.
2
Replace the battery in the key fob with a new one.
3
Check the vehicle’s battery voltage to ensure it is charged.
4
Attempt to reprogram the key fob using the vehicle's onboard settings.
5
Verify if the key fob works within proximity to the vehicle.
6
Use an OBD-II scanner to check for any related error codes.

Solution

1. Preparation

Gather necessary tools: a new key fob battery (CR2032 or as specified), a small flat-head screwdriver, and a clean workspace.
Ensure the vehicle is in a safe environment with the ignition off.

2. Replace Key Fob Battery

Step 1: Open the key fob by inserting the small flat-head screwdriver into the seam and gently prying it apart.
Step 2: Remove the old battery and note its orientation.
Step 3: Insert the new battery in the same orientation as the old one.
Step 4: Snap the key fob halves back together until securely closed.

3. Reprogram Key Fob (if necessary)

Step 1: Sit in the driver’s seat and close all doors.
Step 2: Insert the key into the ignition and turn it to the "On" position (do not start the engine) and then back to "Off" five times within 10 seconds.
Step 3: Leave the key in the "On" position on the fifth turn. The dashboard will indicate that the vehicle is in programming mode.
Step 4: Press any button on the key fob for one second. The vehicle will confirm successful programming by locking and unlocking the doors.