How to change the key fob battery in a Hyundai Palisade
Slide the mechanical key out of the Palisade fob and pry the fob open at its seam. Swap in the new battery with the plus and minus sides matching the old one, then snap the two halves shut.
Keep reading below, then schedule a test drive in Houston. Bringing your own numbers to the lot settles this faster than any spec sheet.
What do you need to change a Palisade key fob battery?
The 2026 Hyundai Palisade smart key takes a CR2450 battery. The 2026 Hyundai Palisade owner’s manual gives this four-step procedure for the swap:
1. Insert a slim tool into the slot on the smart key and gently open the rear cover.
2. Remove the old battery.
3. Insert a new CR2450 battery, making sure it is positioned correctly.
4. Reinstall the rear cover of the smart key.
The same manual warns that an improperly positioned battery may discharge and cause smart key failure. It also warns that a button battery can cause severe or fatal injuries if swallowed, so keep it away from children. Changing the battery in a Hyundai Palisade key fob is pretty easy and usually takes about 2 to 5 minutes.
How do you handle a Palisade key fob battery safely?
Keep both the old and the new button batteries away from children. Swallowing one is a medical emergency. Set the old battery aside somewhere a child cannot reach before you close the fob.
FAQ
Where can you buy a replacement Palisade key fob battery?
Walmart, Target, CVS, Walgreens, and grocery stores carry replacement fob batteries. Bring the CR2450 type with you so you buy the right size.
How long does it take to change a Palisade key fob battery?
The job is pretty easy and usually takes about 2 to 5 minutes. Most of that time goes to opening the fob and seating the new battery correctly.
Do you need to reprogram a Palisade key fob after changing the battery?
The owner’s manual’s battery steps end with reinstalling the rear cover, and they list no re-registration step:
1. Insert a slim tool into the slot and gently open the rear cover.
2. Remove the old battery and insert a new battery. Make sure the battery position is correct. An improperly positioned battery may discharge the battery, causing smart key failure.
3. Reinstall the rear cover of the smart key.
The manual adds that if you suspect the smart key has sustained damage or is not working correctly, you should contact an authorized Hyundai dealer. It also says a lithium button battery can cause severe or fatal injuries within 2 hours if swallowed, so keep batteries out of reach of children and seek immediate medical attention if one may have been swallowed.
How do you open a key fob without scratching it?
Use the metal key or a small flathead screwdriver in the small opening or notch. Gently twist to separate the two halves. Go slowly so the fob does not slip and mark the case.
How do you get a replacement Palisade key fob in southwest Houston?
For a replacement fob, head to Group 1 Hyundai Southwest Houston, located on the Southwest Freeway in Houston.
Book Palisade key fob service at Group 1 Hyundai Southwest Houston
Group 1 Hyundai Southwest Houston is at 10301 Southwest Freeway, Houston, TX 77074. On Google, the dealership holds 4.3 stars from 6,022 reviews, and 77 in 100 of those reviews give five stars (Google, 2026).
Customers describe the care they get from our people. In a July 2026 Google review, David W. wrote: “Cedric the service advisor was very friendly and professional. I especially like the text with the video showing the tech doing the multi point inspection.”
Start with a trade, a pre-approval, or a look at the inventory. Value a trade and get a fast online pre-approval, browse the new and used Hyundai inventory, then finish in store at Group 1 Hyundai Southwest Houston.
Group 1 Hyundai Southwest Houston answers this question against the specific vehicle in front of you rather than the model in general. Value your trade and get pre-approved online, then see us at our Houston showroom, or call (713) 981-4400.
Disclaimer: Vehicle features, specifications, pricing, options, and availability may vary based on production timelines and dealership inventory; images are for illustrative purposes only. Starting MSRP figures are national and exclude destination freight charges, tax, title, license, and dealer fees. Standard and available equipment varies by trim, configuration, and model year; confirm the specification of the individual vehicle before purchase. Maximum towing and payload ratings depend on cab, bed, drivetrain, and equipment configuration; see the vehicle’s Owner’s Manual and trailering guide for limits. Electric range and charging times vary with battery, configuration, temperature, terrain, load, and driving habits. Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Financing and pre-approval are subject to credit approval. Contact Group 1 Hyundai Southwest Houston for complete details regarding current vehicle inventory, pricing, and equipment.
