How to Start a Honda or Acura with a Dead Key Fob
Starting Your Honda or Acura
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There are several methods for starting a Honda or Acura vehicle. To start a Honda and the newest Acura models lacking a slot, touch the “H” in the Honda logo or the “A” in the Acura logo on the remote control to the Start / Stop button until the small indicator light in the button begins to flash. For the next 30 seconds, the vehicle can be started using the Start / Stop button normally. You can also simply press the Start / Stop button with the remote control itself, while stepping on the brake of course.
Note that the Honda Insight and Clarity have a Power button instead of a Start/Stop, but the process is 
exactly the same.
The Acura ZDX EV and Honda Prologue EV marks a rather large shift in engineering. The back up start process uses a cup holder. Place the key fob in the rear cupholder in the Acura or the left cupholder in the Honda with the buttons facing down (right). Then with the vehicle in Park or Neutral, press the brake pedal and the Start/Stop button, which like the Insight and Clarity is a Power button.
In earlier Acura models (newest models are above), there is a slot for the remote control (key fob) to the left and below the Start / Stop button. Insert the remote and use the Start / Stop button to start the vehicle as normal.
Note that in these later models, there is a keyless access remote system main switch that may be turned off. The vehicle will start with the remote in its slot as described.
In the oldest keyless start Acura models, there is a cover on the ignition switch that must be removed. This will allow the use of the mechanical key built into the key fob. To remove the ignition switch cover, slip the built-in key into the parallel slot underneath the cover. Push the key in while pull it towards you at the same time and the cover will come off. Once the cover is removed, the mechanical key can be inserted and turned to start the vehicle.
Note: If you have made an attempt to start the vehicle without success, there may be residual pressure in the brake system and a new warning light may appear (left) or text message to Step on the Brake. Press the brake pedal very, very hard when trying to start the vehicle again to be sure that the release switch behind the pedal is engaged. Or wait a few minutes and try again.
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Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.
These posts are for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.
Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.
The author has 25 years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s College, ME: MS, Rensselaer Polytechnic Institute, NY
Two methods exist in Nissan and Infinity vehicles. Some models use method 1. In this case, insert the Intelligent Key in the port provided. It will be found to the left of the steering column. It might be horizontal (first image) or vertical (second image).
port or with the buttons facing the door in the vertical port. Make sure the key ring side is out.
If a port does not exist, method 2 comes into play. Simply touch the ignition switch with the Intelligent Key (a chime will sound). Push the ignition Start / Stop button while depressing the brake pedal within 10 seconds after the chime sounds to start the engine.
And finally, in the Infiniti QX30, the Start / Stop button appears to ‘float’ above the dashboard. Pull it away exposing the ignition switch. If necessary the tip of the mechanical key can be used as a pry bar.
Some BMW and Mini models already require that the key fob be inserted into the dashboard next to the Start/Stop button. If the key fob battery is dead, the vehicle will recognize the fob when inserted. In “Comfort Access” models, the slot is only needed if the fob’s battery dies, or if electrical interference interrupts the fob’s signal. Insert the fob into the slot and use the Start/Stop button as normal.
For other BMW or Mini models, hold the remote control against the marked area on the steering column and press the Start/Stop button within 10 seconds while depressing the brake.
The smart phone recharge pads also act as new start points. A properly connected key card or a smart phone holding the proper BMW app touched to the pads will allow the car to start. The pad is found in front of the cup holders in the i4 (first image) and on the lower level of the iX console (second image).
The car features a wireless cell phone charging station inside the center console. There is also a bulge into which the Display Key can be slipped, with the lock button up and out. The Key is charged with a micro USB cable, a micro USB port on the Key (see the arrow on the Display Key) and the USB port at the back of the console.
note the button to push on the back side in the center (top arrow).
Starting the car is a simple process. Touch the “nose” of the key fob to the Start / Stop button. Push the button with the fob itself while stepping on the brake as you normally would. The car will recognize the key fob and start even though the fob’s internal battery is dead.
The latest models from all three manufacturers — with two exceptions — have a much simplified process. Staring with vehicle updates in the 2013 model year, simply press the Start / Stop ignition button with the Smart Key while depressing the brake to start the vehicle. We originally named this the back up start Method 6. If this does not work in your model, continue on below for a method that will.
The exceptions noted are first, an EV button (far left) in Kia EVs. It is pushed just like the Start / Stop button. The second exception is the 2021 Genesis G80, which is now a Seventh Method. This method has moved to the 2022 GV60 EV as well, and may yet be placed in other models. If the vehicle does not recognize the key fob or Smart Key, slip the Smart Key into the space behind the shifter dial and cup holders and in front of the leather of the console. See the second image to the left. Then, step on the brake and push the Start / Stop ignition button to start the vehicle as normal.
We must also add an Eighth Method, which is digital. In the new GV60, G70, GV70, G80 and G90, a registered smart phone or a pre-registered card key can be placed on the vehicle’s wireless charging pad. It is found in front of the center console storage area (left). Once in place, the vehicle can be started as normal.
The Kia Forte, Sportage, and Sorento and Hyundai Sonata (prior to 2014) use Method 1. Insert the Smart Key in the Smart Key holder, which is a slot inside the center console, then press the Start / Stop ignition button while depressing the brake. To remove the Key, press it, then pull. Check out the video below.
The Kia Magentis also uses a slot in the center console in Method 2. Insert the Key and then press the Start / Stop ignition button while depressing the brake. To remove, press the Smart Key inward past the detent and then pull it outward.
The Hyundai Genesis, built before 2014, uses Method 3, which is a slot located behind a door above the shifter. Insert the Key and then press the Start / Stop ignition button while depressing the brake. To remove the Key, press it and then pull it out.
The Kia Optima (prior to 2014) and Soul and Hyundai Equus use Method 4, which is a slot in the glove box. The slot is a little higher in the Equus. Insert the Key and then press the Start / Stop ignition button while depressing the brake. To remove the Key, press it and then pull it out.
The Kia Borrego uses the Method 5 slot, which is in the dash just below the Start /Stop ignition button. It should be readily visible. Insert the Smart Key and then press the Start / Stop button while depressing the brake. To remove the Key, release it by pressing and then pull it out.
message to Step on the Brake. Press the brake pedal very, very hard when trying to start the vehicle again to be sure that the release switch behind the pedal is engaged. Or wait a few minutes and try again.
‘clickers), each of which holds a mechanical key. The rectangular shape Style 1 has a release catch (1) on the mechanical key (2) itself, very near the key ring hole, as shown. Slide the catch towards the hole while pulling on the key to remove it from the Access Key.
The Style 2 Access Key has an oval shape. The release for the mechanical key (2) is a simple push-button (1) on the back of the Access Key, as shown (for the record, it looks like it will slide — it won’t). Pull out the mechanical key while pressing the release button at the same time.
which is also a more rectangular shape. Here, the mechanical key release (1) is on the side of the Access Key, as shown. Pull out the mechanical key (2) while pressing the release button at the same time.
buttons facing out towards you, as shown. The vehicle and the Access Key will talk to each other for a few moments, after which a chime or ‘ding’ will be heard.
For the Karma model, press the button on the reverse of the key fob (remote control or ‘clicker’) and slide the emergency key blade or mechanical key free (right image).
which could make getting to the next step very difficult while an alarm is blaring.
Place the Fisker logo on the back of the fob against the light colored strip in the center of the driver’s door handle roughly where the arrow is pointing (right). It may need to be moved a half inch one way or the other. The handle will detect the key fob and will extend to the open position.