Q: How do I replace the battery in my key?

asked by on December 14, 2015

How do I replace the battery in my key?

Your key is electronic. That’s what allows the remote to communicate with the various systems on the car. Like all batteries, it will eventually die and need to be replaced. It should last for several years between replacements, though. Here’s what to do if your remote isn’t working anymore:

  • Make sure you have a replacement battery. For a standard key and remote, you’ll need a CR2016. For a smart key system, you’ll need a CR1632.

Battery Replacement for a Standard Key

  1. Use a flathead screwdriver and pry the two halves of the key/remote apart.

  2. Flip the key over and locate the module. Remove it.

  3. Remove the old battery.

  4. Replace the new battery (make sure to have the + sign facing upwards).

  5. Close the battery and make sure the remote works.

Battery Replacement for a Smart Key

  1. Remove the mechanical key insert from the remote.

  2. Use a flathead screwdriver to pry apart the cover.

  3. Locate the battery. Remove it.

  4. Replace it with the new battery. Make sure the + sign is up.

  5. Close the remote.

  6. Make sure the remote works.

Tips

You may need to replace the remote battery if the remote stops working, or if you notice the range is reduced.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

ABS, CEL lights on

If the ABS light is not illuminated, then it's likely operating correctly as it generally illuminate when a fault is present. The leaking of the battery is a cause of concern. It signifies one of two issues: a damaged...

2012 Chevy Cruze won’t start crank but won’t start jumped the started and it started right up

Hi Dominic. Thanks for contacting us tonight. Since your ignition switch was damaged, you should probably replace this first, as not only is this the likely source of your problem, but it represents an electrical safety issue and maybe a...

Car will not accelerate while driving

Hi, is there any more information you can give us about the acceleration issue? These cars are known to have a slight hesitation when starting from a stop so it may be normal. Since the car is under 5 years...

Related articles

Understanding Electric Car Batteries
Know how your electric vehicle's battery works to maximize its life and efficiency — and whether replacement is covered by manufacturer warranty.
What Is Key-Off Battery Drain?
Many Many things in your car continue to work even after your vehicle is turned off – radio presets, security alarms, emissions computers and clocks are just a few. They continue to draw power from your car battery, and the...
A Buyer’s Guide to the 2012 Hyundai Azera
The The Azera offers an overall good value for the class and price point. The sleek styling is hard to overlook – for a large sedan it’s about as eye-catching as they get. This Hyundai also boasts respectable power that’s...