You can access the bulb from the trunk area (from behind). Just remove and replace, should be straightforward.
How do you remove taillight cover on a T-100 toyota Truck
take it to the Toyota dealership and ask them to replace it
Pretty sure its the same as the 2000 Toyota echo, see related link.
about $1500 AU
when it breaks
$1500 to $2000
You can replace your 2003 Toyota Echo antenna. Remove the antenna retaining nut. Remove the cable from the bottom of the antenna. Reverse the process to install the new antenna.
go to dealer
how do you replace a taillight on a Honda 2002 Civic?
To replace the rear bulb in a Toyota 4Runner remove the plastic covers located in the trunk. Taking off the plastic covers will reveal the taillight housing and bulbs. Replace the bulbs.