Toyota Lexusc Owner's Handbook Manual page 60

If the back door opener does not operate
If the back door opener does not operate, you can open the
back door from the inside.
To open the back door from the inside, do the following.
1. Remove the cover with a key.
2. Push the lever and open the back door.
Have your vehicle checked/repaired by your Lexus dealer if the
back door opener does not operate.
KEYS AND DOORS
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