Page 373 of 539

Black plate (6,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
10-6 Vehicle Care
1. Positive (+) Terminal. SeeJump
Starting on page 10-88.
2. Battery on page 10-30.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System on page 10-19.
4. Engine Air Cleaner/Filter on
page 10-17.
5. Automatic Transmission Dipstick (If Equipped). See “How to
Check Automatic Transmission
Fluid” under Automatic
Transmission Fluid on
page 10-14.
6. Remote Negative (–) Location. See Jump Starting on
page 10-88.
7. Engine Cooling Fans (Out of View). See Cooling System on
page 10-19.
8. Engine Oil Fill Cap. See “When
to Add Engine Oil” underEngine
Oil on page 10-10. 9. Engine Oil Dipstick. See
“Checking Engine Oil” under
Engine Oil on page 10-10.
10. Brake Fluid Reservoir. See Brake Fluid on page 10-29.
11. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-27.
12. Clutch Fluid Reservoir (If Equipped).
13. Engine Compartment Fuse
Block on page 10-42.
Page 375 of 539

Black plate (8,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
10-8 Vehicle Care
1. Positive (+) Terminal. SeeJump
Starting on page 10-88.
2. Battery on page 10-30.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System on page 10-19.
4. Engine Air Cleaner/Filter on
page 10-17.
5. Automatic Transmission Dipstick. See “How to Check
Automatic Transmission Fluid”
under Automatic Transmission
Fluid on page 10-14.
6. Remote Negative (–) Location (Out of View). See Jump Starting
on page 10-88.
7. Engine Cooling Fans (Out of View). See Cooling System on
page 10-19.
8. Engine Oil Fill Cap. See “When
to Add Engine Oil” underEngine
Oil on page 10-10.
9. Engine Oil Dipstick. See “Checking Engine Oil” under
Engine Oil on page 10-10. 10. Windshield Washer Fluid
Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-27.
11. Brake Fluid Reservoir. See Brake Fluid on page 10-29.
12. Engine Compartment Fuse
Block on page 10-42.
Page 377 of 539

Black plate (10,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
10-10 Vehicle Care
1. Positive (+) Terminal. SeeJump
Starting on page 10-88.
2. Battery on page 10-30.
3. Coolant Surge Tank and Pressure Cap. See Cooling
System on page 10-19.
4. Engine Air Cleaner/Filter on
page 10-17.
5. Automatic Transmission Dipstick. See “How to Check
Automatic Transmission Fluid”
under Automatic Transmission
Fluid on page 10-14.
6. Engine Oil Dipstick. See “Checking Engine Oil” under
Engine Oil on page 10-10.
7. Engine Oil Fill Cap. See “When
to Add Engine Oil” underEngine
Oil on page 10-10.
8. Engine Cooling Fan (Out of View). See Cooling System on
page 10-19.
9. Remote Negative (–) Location. See Jump Starting on
page 10-88. 10. Power Steering Fluid
Reservoir. See Power Steering
Fluid (1500 Series) on
page 10-26 orPower Steering
Fluid (2500/3500 Series) on
page 10-26.
11. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10-27.
12. Brake Fluid Reservoir. See Brake Fluid on page 10-29.
13. Auxiliary Battery (If Equipped). SeeBattery on page 10-30.
14. Engine Compartment Fuse
Block on page 10-42.
If the vehicle has a diesel engine
and/or an Allison Transmission, see
the Duramax diesel supplement.Engine Oil
For diesel engine vehicles, see
“Engine Oil” in the Duramax diesel
supplement.
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10-13.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Page 394 of 539

Black plate (27,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Vehicle Care 10-27
5. Remove the cap again and lookat the fluid level on the dipstick.
The level should be between the
ADD and FULL marks. If necessary,
add only enough fluid to bring the
level up to the hashed area between
the ADD and FULL marks.
What to Use
To determine what kind of fluid to
use, see Recommended Fluids and
Lubricants on page 11-12. Always
use the proper fluid.
{Caution
Use of the incorrect fluid may
damage the vehicle and the
damages may not be covered by
the vehicle warranty. Always use
the correct fluid listed in
Recommended Fluids and
Lubricants on page 11-12.
Washer Fluid
What to Use
When windshield washer fluid needs
to be added, be sure to read the
manufacturer's instructions before
use. Use a fluid that has sufficient
protection against freezing in an
area where the temperature may fall
below freezing.
Adding Washer Fluid
The vehicle has a low washer fluid
message on the DIC that comes on
when the washer fluid is low. The
message is displayed for
15 seconds at the start of each
ignition cycle. When the WASHER
FLUID LOW ADD FLUID message
displays, washer fluid will need to
be added to the windshield washer
fluid reservoir.
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See Engine
Compartment Overview on
page 10-5 for reservoir location.
{Caution
.Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
.Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
to freeze and damage the
washer fluid tank and other
parts of the washer system.
(Continued)