Toyota Highlander Service Manual: Ignition system (2AZ-FE)

Ignition

...

On-vehicle inspection

NOTICE: In this section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold"means approximately -10 C (14 F) to 50 C (122 F). "Hot" means approximately 50 C (122 F) to 100 C ...

More about Toyota Highlander:

Inspection
1. INSPECT DOOR CONTROL TRANSMITTER (a) Check operation of the registration of recognition code (See page 73-1 1). (b) Inspect operation of the transmitter.  Using a screwdriver, remove the cover.  Remove the battery (lithium battery).  Install a new or normal battery (lith ...