Lexus LS 500h 2019 Owner's Manual page 546

544 7-2. Steps to take in an emergency
2 Open the hood. Remove the fuse
box cover. (P.476)
Push the tabs in and lift the lid off.
 Left-hand drive vehicles
 Right-hand drive vehicles
5 Connect a positive jumper cable clamp to
clamp on the other end of the positive cable to
LS500h_OM_General_OM50J66E
3 Open the exclusive jump starting
terminal cover.
 Left-hand drive vehicles
 Right-hand drive vehicles
4 Remove the engine cover.
(P.480)
on your vehicle and connect the
A
on the second vehicle. Then,
B