how to fix a Honda CR-V Fifth Generation (2017-2022) that won't unlock with the key fob

Solution

1. Preparation

• Gather necessary tools: flathead screwdriver, multimeter, replacement battery (CR2032), and a small towel.
• Ensure the vehicle is parked securely and the ignition is off.

2. Inspect and Replace Key Fob Battery

1. Open the Key Fob:

   • Use a flathead screwdriver to gently pry open the key fob casing.
   • Take care not to damage the plastic casing.

2. Remove Old Battery:

   • Note the orientation of the battery.
   • Remove the old battery using the flathead screwdriver or fingers.

3. Insert New Battery:

   • Place the new CR2032 battery in the same orientation as the old one.
   • Ensure it is seated properly.

4. Reassemble the Key Fob:

   • Snap the key fob casing back together securely.
   • Test the key fob to see if it unlocks the vehicle.

3. Test Key Fob Functionality

1. Check Range:

   • Stand near the vehicle and press the unlock button.
   • Move further away and test if the fob works at a distance.

2. Reprogram the Key Fob (if necessary):

   • Insert the key into the ignition and turn to the "ON" position without starting the engine.
   • Press the unlock button on the key fob for 2 seconds within 10 seconds.
   • Turn the key to "OFF" and then back to "ON" to complete the reprogramming.

4. Inspect Vehicle's Locking Mechanism

1. Check Door Lock Actuators:

   • Remove the door panel (if necessary) to access the actuator.
   • Inspect for any physical damage or disconnections.
   • Test the actuator with a multimeter for continuity.

2. Replace Actuator (if faulty):

   • Disconnect the wiring harness from the actuator.
   • Remove any screws or clips securing the actuator.
   • Install the new actuator in reverse order.