Lexus 2004 GX470 Owner's Manual page 601

BODY
Synthetic Leather Areas
(Part of door panels)
The synthetic leather areas may be easily cleaned with a
mild soap or detergent and water.
NOTICE
Do not use solvent, thinner, gasoline or window cleaner
on the interior.
586
First vacuum over the upholstery to remove loose dirt. Then,
using a sponge or soft cloth, apply the soap solution to the
synthetic leather. After allowing it to soak in for a few minutes
to loosen the dirt, remove the dirt and wipe off the soap with a
clean damp cloth. If all the dirt does not come off, repeat the
procedure. Commercial foaming-type cleaners are also
available which work well. Follow the manufacturer's
instructions.