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my Ram 1500 DT (2019-Present) won't unlock with the key fob, what should I do? - Ram 1500
Home/Cars/Ram/1500/DT (2019-Present)/my Ram 1500 DT (2019-Present) won't unlock with the key fob, what should I do?

my Ram 1500 DT (2019-Present) won't unlock with the key fob, what should I do?

Ram 1500 DT (2019-Present)

Error Codes
1-2 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
497 words

Problem Statement

Learn how to diagnose and fix key fob issues for Ram 1500 DT (2019-Present). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Electrical
Estimated Time
1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Ensure the vehicle is off when working on electrical components.
  • •Handle the key fob carefully to avoid damaging internal components.

Symptoms

  • •Key fob buttons do not respond when pressed
  • •Vehicle does not respond to key fob signal
  • •Key fob LED indicator does not illuminate
  • •Manual unlock via the key cylinder is possible
  • •Other electronic functions (like remote start) may not work

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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

  • •Replacement key fob battery (typically CR2032)

Additional Information

Affected Component
Electrical
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
3 items
Parts Required
1 item

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Solution
1. Preparation
  • Gather necessary tools: OBD-II scanner, multimeter, replacement battery (typically CR2032), small flathead screwdriver.
  • Ensure the vehicle is parked safely and the ignition is off.
2. Battery Replacement in Key Fob
  1. Use a small flathead screwdriver to gently pry open the key fob casing.
  2. Remove the old battery and replace it with a new one, ensuring the correct polarity (+ and -) aligns with the markings inside the fob.
  3. Reassemble the key fob casing securely.
3. Reprogram the Key Fob
  1. Insert the key into the ignition and turn it to the "On" position without starting the engine.
  2. Press the "Unlock" button on the key fob for about 10 seconds.
  3. Turn the ignition off and remove the key.
  4. Test the key fob to see if it now unlocks the vehicle.
4. BCM Inspection (if necessary)
  1. Connect the OBD-II scanner to the diagnostic port under the dashboard.
  2. Turn the ignition to the "On" position and scan for any error codes in the BCM.
  3. Address any codes found, which may indicate a faulty BCM or related components.
5. Fuse Check
  1. Locate the fuse box, typically found under the dashboard or in the engine bay.
  2. Inspect the fuses related to the keyless entry system; replace any that are blown.