GMC 1998 Savana Van Owner's Manual page 271

Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
Battery
If your brake pedal goes down farther than normal, your
rear drum brakes may need adjustment. Adjust them by
backing up and firmly applying the brakes a few times.
Replacing Brake System Parts
The braking system on a modern vehicle is complex.
Its many parts have to be of top quality and work well
together if the vehicle is to have really good braking.
Your vehicle was designed and tested with top-quality
GM brake parts. When you replace parts of your braking
system -- for example, when your brake linings wear
down and you have to have new ones put in
--
be sure
you get new approved GM replacement parts. If you
don't, your brakes may no longer work properly. For
example, if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change -- for the worse. The braking
performance you've come to expect can change in many
other ways if someone puts in the wrong replacement
brake parts.
Every new vehicle has an ACDelco Freedom@ battery.
You never have to add water to one of these. When it's
time for a new battery, we recommend an ACDelco
Freedom battery. Get one that has the replacement
number shown on the original battery's label.
If you have a diesel engine, you have two batteries. The
primary battery is located on the passenger's side of the
engine compartment. The second battery is located on
the driver's side framerail.
Vehicle Storage
If you're not going to drive your vehicle for 25 days
or more, remove the black, negative (-) cable from
the battery. This will help keep your battery from
running down.
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