The quickest way is usually with the key fob’s trunk button or the interior trunk release. If your Sonata has a power liftgate, you can also open it automatically by using the remote or a liftgate button. If the battery is dead or a mechanical key is needed, you can still access the trunk using the emergency release or the vehicle’s manual key.
Remote trunk release using the key fob
This method uses the trunk button on the Hyundai Sonata’s key fob to unlatch and (in some trims) raise the trunk.
- Press and hold the trunk icon button on the key fob for about 1–2 seconds to release the latch.
- If the doors are locked or the battery is low, first unlock the car with the fob’s unlock button or use the mechanical key blade to unlock the driver’s door, then try the trunk button again.
- On models with a power liftgate, releasing the latch may cause the trunk to lift automatically; on non-power liftgates you’ll need to lift manually.
Notes: If the battery is completely dead, remote operation may not work. In that case, use another method described below or the mechanical key to gain access and then open the trunk from inside the car.
Interior trunk release from the cabin
You can open the trunk from inside the vehicle if you’re near or inside the driver’s area and the car is unlocked.
- Locate the interior trunk release switch on the lower left side of the dashboard or near the driver’s left kick panel (it often has a trunk icon).
- Press the switch to unlatch the trunk; if the trunk doesn’t release, ensure the doors are unlocked first with the remote or key.
- If your model has a power liftgate, the trunk may begin to open or lift once released.
This interior switch is handy when you’re at the car and the exterior trunk release isn’t convenient or isn’t working.
Emergency release and manual access from inside the trunk
Most Sonatas include an emergency trunk release inside the cargo area for safety. Use this if other methods fail or if you’re already at the trunk from the inside.
- Open the trunk as far as you can from the outside or interior release, then locate the glow‑in‑the‑dark emergency release handle or lever on the inside edge of the trunk lid or side wall.
- Pull or lift the emergency release to disengage the latch and open the trunk fully.
- Once opened, plan how to operate future openings (e.g., ensure the battery is charged or keep the mechanical key accessible).
Note: The emergency release is designed for safety and may differ in placement by year and trim. If you can’t find it, consult your owner’s manual for your exact model year.
Power liftgate and other electrical features
Some Hyundai Sonata trims include a power liftgate or enhanced electrical controls for opening the trunk. Here are common ways to use them.
Trunk lid button on the liftgate
Many power liftgate systems provide a dedicated button on the edge/inside of the trunk lid or near the trim for opening or closing the hatch.
- Press the trunk button briefly to release the latch or hold it to trigger automatic opening if equipped.
- Ensure the vehicle is unlocked and the battery is sufficient; a dead battery may prevent automatic operation.
If the liftgate doesn’t respond, try the other methods (fob or interior release) and check the battery or consult the manual for your exact trim.
Key fob operation for power liftgate
On trims with a power liftgate, the key fob may open the hatch by pressing and holding the trunk button or a dedicated liftgate button, depending on the model year and trim.
- With doors unlocked, press and hold the trunk button on the fob for 1–2 seconds to trigger the liftgate release (or follow your trim’s specific instructions).
- Walk up to the trunk and wait for it to begin opening, keeping hands clear of the latch path.
Tip: If the fob battery is low, remote operation may not work. In that case, use the interior trunk release or the mechanical key to access the trunk, then operate the liftgate from the inside if possible.
Model-year notes and safety tips
Trunk release features can vary by year, trim level, and market. Always check your owner’s manual for the exact button placements and procedures for your specific Hyundai Sonata. If you encounter resistance or unusual noises when opening the trunk, stop and inspect for obstructions or damage to the latch and hydraulic supports.
Summary
To pop the trunk on a Hyundai Sonata, use the key fob trunk button, the interior trunk release from the cabin, or the emergency release inside the trunk. If your Sonata has a power liftgate, you may also open it with a liftgate button or by holding the fob’s trunk button. For a dead battery or a locked system, rely on the mechanical key, inside releases, or the trunk’s emergency release to gain access and then address power or battery concerns. Always refer to your model year’s manual for precise instructions.