Nissan Key Fob Dead? How to Start Your Car in 30 Seconds

If your Nissan key fob is dead, you can still start your car. Use the metal key hidden inside the fob to unlock the driver’s door. Then press the brake, touch the fob to the push-button start, and press the button when you hear a chime.

That’s it. The fob contains a chip that the car can read at very close range, even with no battery power. Below, the Walser Nissan Wayzata team breaks down each step and shows which method your model uses.

Getting Into Your Nissan When the Fob Won’t Unlock It

The buttons and door handle sensor won’t respond to a dead fob, so you’ll go old school.

1. Release the hidden key. Slide or press the small latch on the fob and pull the metal key out.
2. Find the keyhole. It’s on the driver’s door handle. Many recent Nissans hide it under a small cap at the rear of the handle.
3. Remove the cap if needed. Use the key’s tip in the small slot under the cap and gently lift it off. Don’t force it.
4. Unlock and open the door.

Expect the alarm to sound. It stops as soon as you start the car with the fob, so don’t worry about the neighbors.

Starting the Engine with a Dead Fob

Once you’re in the driver’s seat, here’s what to do and what to expect:

1. Press and hold the brake. You may see a “Key Battery Low” or “No Key Detected” message. That’s normal.
2. Touch the fob to the start button. Hold the Nissan logo side flat against the push-button ignition.
3. Listen for the chime. The car beeps once it reads the fob’s chip.
4. Press the start button. Do it within about 10 seconds of the chime, keeping your foot on the brake.

Your Nissan will start and drive normally. Once it’s running, the engine won’t shut off because of the dead fob, but replace the battery before your next trip.

Which Backup Method Does Your Nissan Use?

Most Nissans on the road today use the push-button method above, but older models work a little differently.

Not sure which you have? Check the “Intelligent Key” section of your owner’s manual, or give our team a call.

How to Keep Your Fob from Dying Again

• Replace the battery every two to three years. Most Nissan fobs take a CR2032 coin battery, and the swap takes about five minutes.
• Act on early warnings. Shorter range or a “Key Battery Low” message means it’s time.
• Do it before winter. Cold weather saps weak batteries, so fall is the best time for a fresh one.
• Keep a spare battery in your glove box. Then a dead fob is a five-minute fix anywhere.
• Ask at your next service visit. Our team can check or replace your fob battery while your Nissan is in the shop.

Dead Nissan Key Fob FAQ

Will my Nissan turn off if the key fob dies while I’m driving?

No. A running engine keeps running. You’ll just need the backup method to start it next time.

Why won’t my Nissan start even when I hold the fob to the button?

Make sure your foot is firmly on the brake and the car is in Park. If the dash lights are dim or you hear clicking, the car’s 12-volt battery may be the real problem.

Can I lock my Nissan with a dead key fob?

Yes. Use the hidden mechanical key in the driver’s door lock.

Does a dead fob mean I need a new one?

Usually not. A new battery fixes most dead fobs, and the fob keeps its programming.

How long does it take to start a Nissan with a dead fob?

Only about 30 seconds!

Nissan Key Fob Help at Walser Nissan Wayzata   

Need a new fob battery, a spare Intelligent Key, or help with a fob that still won’t cooperate? The team at Walser Nissan Wayzata can take care of it. We serve Nissan drivers in Wayzata, Minnetonka, Plymouth, Orono, Long Lake, Excelsior and across the west metro.

Schedule your Nissan service appointment or stop by our parts department for a genuine Nissan fob battery.