I assume you mean the tail (brake) lights. Mine is a 1993 Celica, but I think 1991 is the same.
Open the hatchback. On top of the brake light assembly you will see a small square tab. Pop that tab out with a flathead screwdriver. Under the tab you will see a screw. Remove the screw.
Now for the delicate part. At the front of the brake light assembly (on the side of the car) you will notice that the first panel is not a light, but is instead an air vent. It is clipped in. The front (round) edge has two tongues to hold the piece in. The rear (flat) edge has the clip. VERY CAREFULLY lever the rear (flat edge) out. If you aren't careful you will break one of the vents like I did the first time. Once the clip has popped out you can slide the tongues out and the whole vent comes out. Behind the vent you will find two screws. Remove them. The tail light assembly can now be removed. The bulbs can be removed from the rear with a quarter turn. There you go. Paul.
The description is not helpful for a 91 Celica GT. I don't know what is meant by "vents" or "tongues" in the above. At the front of the brake light assembly on the side of the car are more lights - no vents. The screw on the top mentioned in the beginning of the entry is right, but I don't want to risk breaking light covers if this is not the right way to get to the bulbs..
The fender must be removed so the light will slip out
The lamp in the top brake light of a Toyota Highlander can be replaced by the locating the light housing from the trunk. Find the light cover and remove it to access the lights. Replace the bulbs.
check your owners manual the procedure is there as diy
realign the head lights, check battery termninals
If your 92 Toyota Corolla taillights are out, but the dash light and fuse work fine, the bulbs could have burn out. Replace bulbs on each side.
Depending on the year but most late modles have the bulbs screw in fron the rear. Sometimes you have to remove the light assy .
replace the bulbs
o2 censor
no
changing rear light bulbs on toyota avenis
The engine warning light for emissions might come on in a Toyota Celica if the Oxygen Sensors are bad. It might also come on if the catalytic converter is not working properly or is plugged.
There are plastic interior panels in the rear of the trunk/cargo area. Pop them off and that will reveal the access to the light sockets from behind. From there, pull out the socket assembly (might have to rotate it 90 degrees or so for it to come out), replace the bulb, put the sockets back in and put the panels back on.