Using the physical key blade inside your 2020 Honda’s key fob is the reliable fallback when the fob battery dies. The key blade unlocks the driver's door through a hidden lock cylinder, and you can start the vehicle by using the fob near the Start/Stop button.
In more detail, the mechanical key blade is stored inside the key fob. To access it, remove or slide out the blade with the release mechanism. The driver’s door has a lock cylinder that is typically hidden behind a small plastic cover on the door handle or at the edge of the door. For starting, the car’s push-button start system can usually detect the fob when it is held near the Start/Stop button or placed in the designated area described in the owner’s manual, even if the fob’s battery is weak.
Accessing the mechanical key blade and door lock
Before you use the list, note that exact locations can vary by model. The steps below cover the common approach across 2020 Honda models with smart entry.
- Retrieve the mechanical key blade from the fob by pressing the release tab and sliding the blade out.
- Locate the driver’s door lock cylinder, which is usually hidden behind a small plastic cover on the door handle or at the door edge.
- Carefully pry off or open the cover to expose the keyhole, then insert the mechanical key blade and turn to unlock the door.
- If your model uses a trunk or other lock, repeat this process on that door if you need access from another entry point.
Using the mechanical key blade is a straightforward backup method: it ensures you can access the car even when the fob battery is dead, allowing you to enter and protect your belongings while you arrange a replacement key or battery.
Starting the vehicle when the key fob battery is dead
Again, model variations exist, so follow these general guidelines if your 2020 Honda uses a push-button Start/Stop system.
- Sit in the driver’s seat with the brake pedal pressed (as you would for normal starting).
- Keep the key fob close to the Start/Stop button or to the designated area described in your owner’s manual. Some models require placing the fob on a specific spot on or near the console.
- Press the Start/Stop button to start the engine while continuing to hold the brake pedal. If the system detects the fob, the engine should start normally.
- If the engine does not start, try repositioning the fob and attempting again, or consult roadside assistance as needed.
If you’re unsure of the exact placement for your specific 2020 Honda trim, consult the owner’s manual. Some variants may reference a particular pocket, cup holder area, or a spot on the center console for the fob when starting with a low battery.
Model-specific notes
Civic, CR-V, Accord, Pilot and other 2020 Honda models
In most 2020 Honda models with a smart key, the process is similar: the mechanical key blade is stored inside the fob for unlocking doors via a hidden keyhole, and the key fob can be used near the Start/Stop button to start the engine if the battery is dead. Always verify the exact location of the hidden door lock and the recommended fob placement for starting in your specific model’s manual or in-car quick reference guide.
If you’ve recently acquired a 2020 Honda and can’t locate the hidden door keyhole or the designated Start area, look for a small plastic cover on the door handle (driver’s side) and a label near the Start/Stop button in the cockpit. When in doubt, contact a Honda dealer or consult the official owner’s manual for precise instructions tailored to your trim.
Summary
For a 2020 Honda with a keyless system, the manual key lives inside the fob. Retrieve the mechanical key blade to unlock the driver’s door via a hidden lock cylinder behind a small cover on the door handle or edge. If the fob battery is dead, you can start the car by placing the fob near the Start/Stop button (or in the area specified by your manual) while applying the brake. These backups ensure you can access and operate the vehicle even without a functioning fob battery.