Technical data

Black plate (4,1)
Chevrolet/GMC Duramax Diesel Supplement (GMNA Localizing-U.S./Canada-
7132827) - 2015 - CRC - 10/21/14
11-4 Service and Maintenance
.
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See “Exterior Care” in the
owner manual. Lubricate the
suspension and steering
components at least every other
oil change (If equipped with
grease fittings).
.
Check restraint system
components. See “Safety
System Check” in the owner
manual.
.
Visually inspect fuel system for
damage or leaks.
.
Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
.
Lubricate body components. See
“Exterior Care” in the owner
manual.
.
Check starter switch. See
“Starter Switch Check” in the
owner manual.
.
Check automatic transmission
shift lock control function. See
“Automatic Transmission Shift
Lock Control Function Check” in
the owner manual.
.
Check ignition transmission lock.
See “Ignition Transmission Lock
Check” in the owner manual.
.
Check parking brake and
automatic transmission park
mechanism. See “Park Brake
and P (Park) Mechanism Check”
in the owner manual.
.
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.
Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
.
Pickup models: Inspect sunroof
track and seal, if equipped. See
“Sunroof” in the owner manual.
.
Pickup models: Verify spare tire
key lock operation and lubricate
as needed. See “Tire Changing”
in the owner manual.