When the multi-information display shows ‘‘KEYLESS REMOTE LOW BATTERY,’’ replace the batteries as soon as possible (see page ). Buy them in a two pack! The battery in Honda Smart keys is a CR2032. I changed the battery and all is good. The high and low beam featured separate bulbs. Just last week I grabbed my back-up key fob which does not get used that often and I received the low battery warning. I keep a spare key fob sans battery sans key in the car. Regarding battery life, I got my HR-V in June of 2015 and have just over 46,000 miles on it. Yesterday, I received the low battery … I can start the vehicle only by pressing the key against the push start button. When you start the car, it will be reset. Truck starts no problem. If I misplace the main key fob, I use the spare key to unlock the door, get the spare key fob, and hold it near the start button to start the car. Ever Ready batteries can be had for $2 range; Honda batteries go for $10 which dealership says is what I need. It has used 3 different types of keys in its 15 year life. Within 5 seconds hold the lock button on your key fob for a few seconds, then release it. BUT, around 50% of the time, the low battery light will alarm when I start the truck. maximum battery life, do not store the remote close to electrical devices such as computers or TVs. When traveling, I bring along a spare key in my backpack, or give it to my companion. Honda CR-V Key Fob Battery Replacement Guide (2005 – 2020) The Honda CR-V was an early entrant in the crossover SUV market. You might hear a light click. The spare key fob inside the car has to be sans battery. I have replaced it couple of times and still the smart key does not work and the warning appears. In my Honda vezel a smart key low battery warning appears in smart key even after replacing my the battery. Look for a four-digit number like 2025. So if you replace one key fob's battery and the other key fob's battery is low/dead and in range, it will turn the dash warning light on. This is a built in reminder for you to check your key fob battery. Bought fresh CR 2032 3V Energizer batteries. Most manufacturers, like Honda, make it fairly easy to find out what kind of battery your key fob uses. Once a battery is inside the key fob, it is "on" and running, even if it's sitting in a drawer. Low key battery came on and battery has been replaced 5 times in last month with 3 different battery brands. Got the low battery light. https://fobbattery.com/vehicles/honda/accord-key-fob-battery-replacement-guide Back in January, it showed battery low, after two years and five momths, I had to replace it. If you drive an older vehicle, the battery type may not be indicated. Then turn the car off. What the key fob battery low warning light means. It was a little tricky as I popped everything (all pieces on fob) off the key fob by acident and it took a long time to put them all back together. The battery number should be embossed on the back side of the remote. Have had my 2017 RTL-E since the first day Honda released them, so about 2.5 years. When the key is in use, the computer monitors the output voltage of the fob’s battery. This doesn't mean your battery is dead.