Toyota Grand Highlander (AS10) 2024 Owners Manual / Vehicle status information and indicators / Gauges and meters (12.3-inch
display)
Toyota Grand Highlander (AS10): Gauges and meters (12.3-inch display)
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Downhill assist control system (AWD vehicles)
The downhill assist control
system helps to prevent
excessive speed on steep
downhill slopes.
The system will operate
when the vehicle is traveling
under 18 mph (30 km/h) with
the accelerator and brake
pedals released.
System operation
Press the downhill assist control
switch.
The downhill assist ...
Fuel information
You must only use unleaded
gasoline.
Select octane rating 87
(Research Octane Number
of 91) or higher. Use of
unleaded gasoline with an
octane rating lower than 87
may result in engine knocking.
Persistent knocking
can lead to engine damage.
At minimum, the gasoline you
use should meet the specifi ...