Toyota 2012 Highlander Owner's Manual page 535

3.5 L V6 (2GR-FE) engine
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in
the illustration.
STEP 2
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
STEP 3
Vehicles with smart key system:
Open and close any of the doors with the "ENGINE START
STOP" switch OFF.
5-2. Steps to take in an emergency
5
561