Gmc 2009 Acadia Bedienungsanleitung PDF herunterladen (Seite 95)

Automatic Engine Grade

Braking

Automatic Engine Grade Braking

assists when driving on a downhill

grade. It maintains vehicle speed

by automatically implementing

a shift schedule that uses the

engine and the transmission to

slow the vehicle. The system will

automatically command downshifts

to reduce vehicle speed, until

the brake pedal is no longer being

pressed.

While in the Electronic Range

Select (ERS) mode, grade braking

is deactivated, allowing the driver

to select a range and limiting

the highest gear available. Grade

braking is available for normal

driving and in Tow/Haul mode.

See Automatic Transmission

Operation on page 2-24.

Parking Brake

To set the parking brake, hold the

regular brake pedal down, then push

the parking brake pedal down.

If the ignition is on, the brake

system warning light will come on.

See Brake System Warning Light

on page 3-38.

Notice: Driving with the parking

brake on can overheat the

brake system and cause

premature wear or damage to

brake system parts. Make

sure that the parking brake is

fully released and the brake

warning light is off before driving.

To release the parking brake,

hold the regular brake pedal down,

then push down momentarily on

the parking brake pedal until

you feel the pedal release.

Slowly pull your foot up off the

park brake pedal. If the parking

brake is not released when you

begin to drive, the brake system

warning light will be on and a chime

will sound warning you that the

parking brake is still on.

If you are towing a trailer and are

parking on a hill, see Towing a

Trailer on page 4-24.

Features and Controls 2-27

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