Buick Envista Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18181221) - 2025
156 Driving and Operating
switch until the red parking brake status light
i
s off. If either light stays on after release is
attempted, see your dealer.
Caution
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.
Automatic EPB Release
T
he EPB will automatically release if the vehicle
is running, placed into gear, and an attempt is
made to drive away. Avoid rapid acceleration
when the EPB is applied, to preserve parking
brake lining life.
Brake Assist
Brake Assist detects rapid brake pedal
applications due to emergency braking
situations and provides additional braking to
activate the Antilock Brake System (ABS) if
the brake pedal is not pushed hard enough
to activate ABS normally. Minor noise, brake
pedal pulsation, and/or pedal movement
during this time may occur. Continue to
a
pply the brake pedal as the driving situation
dictates. Brake Assist disengages when the
brake pedal is released.
Hill Start Assist (HSA)
This vehicle has aHill Start Assist (HSA)
feature, which may be useful when the vehicle
is stopped on agrade sufficient enough to
activate HSA. This feature is designed to
prevent the vehicle from rolling, either forward
or rearward, during vehicle drive off. After the
driver completely stops and holds the vehicle
in acomplete standstill on agrade, HSA will be
automatically activated. During the transition
period between when the driver releases the
brake pedal and starts to accelerate to drive off
on agrade, HSA holds the braking pressure for
a maximum of two seconds to ensure that there
is no rolling. The brakes will automatically
release when the accelerator pedal is applied
within the two-second window. It will not
activate if the vehicle is in adrive gear and
facing downhill, or if the vehicle is facing uphill
and in R(Reverse).
Ride Control Systems
T
raction Control/Electronic
Stability Control
System Operation
The vehicle may have a Traction Control System
(TCS) and Electronic Stability Control (ESC),
an electronic stability control system. These
systems help limit wheel slip and assist the
driver in maintaining control, especially on
slippery road conditions.
TCS activates if it senses that any of the
drive wheels are spinning or beginning to lose
traction. When this happens, TCS applies the
brakes to the spinning wheels and reduces
engine power to limit wheel spin.
ESC activates when the vehicle senses
a difference between the intended path and the
direction the vehicle is actually traveling. ESC
selectively applies braking pressure to any one
of the vehicle wheel brakes to assist the driver
in keeping the vehicle on the intended path.
If cruise control is being used and traction
control or ESC begins to limit wheel spin, cruise
control will disengage. Cruise control may be
turned back on when road conditions allow.