Supplemental Brake Assist System
If your vehicle has vacuum assist power brakes, it is also
equipped with a supplemental brake assist system
that supplies additional vacuum to the vacuum brake
booster if engine vacuum is reduced. Under certain
conditions, the supplemental brake assist system may
run briefly after starting your vehicle or when you
apply and release the brake pedal and it may continue
to run even after you have removed your foot from
the brake pedal. When the supplemental brake assist
system is operating, you may hear a motor running
or feel a slight vibration in the steering wheel or brake
pedal. This indicates that the supplemental brake
assist system is working to supply additional vacuum for
your vacuum assist power brakes. This is a normal
operation of your brake system and does not require that
the brake system be serviced.
Each time you start your vehicle and accelerate to
10 mph, the supplemental brake assist system
will perform a self-diagnostic check of the system and
you may hear or feel the supplemental brake assist
motor run briefly. While you are driving your vehicle, the
supplemental brake assist system monitors itself to
ensure that it is operating properly. If there is a problem
with the supplemental brake assist system, the
SERVICE BRAKE BOOSTER message will be displayed
on the Driver Information Center. See
DIC Warnings
and Messages on page 3-65.
If your supplemental brake assist system runs every
time you apply and release the brake pedal or you notice
that the brake pedal has suddenly become much
harder to push and the vehicle takes longer to stop, you
should have your vehicle serviced as soon as possible.
4-9
Содержание Silverado 2003
Страница 5: ...These are some examples of vehicle symbols you may find on your vehicle v ...
Страница 18: ...Put someone on it Get it up to speed Then stop the vehicle The rider doesn t stop 1 12 ...
Страница 78: ...United States without Passenger Sensing System Canada with Passenger Sensing System 1 72 ...
Страница 156: ... NOTES 2 68 ...
Страница 159: ... NOTES 3 3 ...
Страница 160: ...Instrument Panel Overview 3 4 ...
Страница 194: ...Canada with Passenger Sensing System Canada without Passenger Sensing System 3 38 ...
Страница 282: ... NOTES 3 126 ...
Страница 380: ... NOTES 4 98 ...
Страница 390: ...Engine Compartment Overview When you lift up the hood on the VORTEC 4300 V6 engine you ll see the following 5 10 ...
Страница 394: ...When you lift up the hood on the VORTEC 8100 V8 engine you will see the following 5 14 ...
Страница 461: ...Removing the Spare Tire and Tools Regular Cab and Crew Cab Extended Cab 5 81 ...
Страница 494: ...5 114 ...
Страница 525: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 23 ...
Страница 526: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 24 ...
Страница 556: ... NOTES 20 ...