Toyota Highlander Service Manual: Communication system

Window glass (antenna wire)

REPAIR 1. INSPECT WINDOW GLASS (ANTENNA WIRE) NOTICE: When cleaning the glass, use a soft, dry cloth, and wipe the glass in the direction of the wire. Take care not to damage the wires. Do no ...

Horn system

LOCATION INSPECTION 1. INSPECT RELAY (HORN) (a) Remove the HORN relay from the engine room J/B. (b) Measure the HORN relay resistance. Standard: 2. INSPECT HIGH PITCHED HORN ASSY ...

More about Toyota Highlander:

If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your toyota dealer. Warnin ...