If it's like a 1998, use your key. The keyhole is hidden in the "8" of the XK8 logo on the right rear side of the trunk.
Using the key will not work since the release is electronic. Just open the hood and on the passenger side there is a positive terminal to hook up a jump. Just use this long enough to open the trunk so you can change/charge the battery.
Actually, the key will work even with a dead battery. There is a mechanical connection between the lock and the latch. However, it's not unheard of for that mechanical connection to break. If it does, you need to use the electrical connection under the hood method.
How do you open the trunk in a 2010 toyota Pirus if dead battry
Surely there is a place to insert and use a key to open the trunk.
Use the key
With the key?
Use you key.
use the key
With your key.
Remove the rear seat.
Replace the battery or jump the battery.
Put your key in the trunk lock and turn.
1. you can pry it open (but that can get costly). 2. you could jump start the battery. 3.use your key.
call a lock smith