Toyota Highlander Owners Manual: Before driving

Driving

...

Driving the vehicle

The following procedures should be observed to ensure safe driving: ...

More about Toyota Highlander:

On-vehicle cleaning
1. INSPECT FINS BLOCKAGE If the fins are clogged, wash them with water or a steam cleaner. Dry with compressed air. NOTICE: If the distance between the steam cleaner and the core is too close, the fins may become damaged. Keep the following injection distance. Standard: If the ...