2010 GMC TERRAIN check transmission fluid

Driving and Operating 8-19
.Keep your eyes moving—scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Going down steep or long hills,
shift to a lower gear.
{WARNING
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.
{WARNING
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. The brakes will have
to do all the work of slowing down
and they could get so hot that
(Continued)
WARNING (Continued)
they would not work well. You
would then have poor braking or
even none going down a hill. You
could crash. Always have the
engine running and the vehicle in
gear when going downhill.
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
.Top of hills: Be alert—
something could be in your lane
(stalled car, accident).
.Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.

8-62 Driving and Operating
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer isclear of the chocks.
7. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See this
manual's Maintenance Schedule or
Index for more information. Things
that are especially important in
trailer operation are automatic
transmission fluid, engine oil, axle
lubricant, belts, cooling system and
brake system. Inspect these before
and during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
on page 9‑20.
Trailer Towing
Before pulling a trailer, there are
three important considerations that
have to do with weight:
.The weight of the trailer
.The weight of the trailer tongue
.The total weight on the vehicle's
tires

Vehicle Care 9-1
Vehicle Care
General Information
General Information . . . . . . . . . . . 9-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . . 9-3
California Perchlorate Materials Requirements . . . . . 9-3
Accessories and Modifications . . . . . . . . . . . . . . . . 9-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . 9-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 9-6
Engine Cover . . . . . . . . . . . . . . . . . 9-9
Engine Oil . . . . . . . . . . . . . . . . . . . 9-10
Engine Oil Life System . . . . . . 9-12
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . 9-13 Engine Air Cleaner/Filter . . . . . 9-13
Cooling System . . . . . . . . . . . . . . 9-15
Engine Coolant . . . . . . . . . . . . . . 9-16
Engine Overheating . . . . . . . . . 9-20
Power Steering Fluid
(2.4L L4 Engine) . . . . . . . . . . . 9-21
Power Steering Fluid (3.0L V6 Engine) . . . . . . . . . . . 9-21
Washer Fluid . . . . . . . . . . . . . . . . 9-22
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-23
Brake Fluid . . . . . . . . . . . . . . . . . . 9-24
Battery . . . . . . . . . . . . . . . . . . . . . . . 9-25
All-Wheel Drive . . . . . . . . . . . . . . 9-26
Starter Switch Check . . . . . . . . 9-26
Automatic Transmission Shift Lock Control
System Check . . . . . . . . . . . . . . 9-27
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . 9-27
Park Brake and P (Park) Mechanism Check . . . . . . . . . 9-28
Wiper Blade Replacement . . . 9-28
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 9-30
Bulb Replacement
Bulb Replacement . . . . . . . . . . . 9-32
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . 9-33
Fog Lamps . . . . . . . . . . . . . . . . . . 9-34
Taillamps, Turn Signal,
Sidemarker, Stoplamps,and Back-Up Lamps . . . . . . . 9-34
License Plate Lamp . . . . . . . . . . 9-37
Replacement Bulbs . . . . . . . . . . 9-38
Electrical System
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 9-38
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . 9-39
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . 9-42
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . 9-45
Tire Sidewall Labeling . . . . . . . 9-46
Tire Designations . . . . . . . . . . . . 9-48
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 9-49

Vehicle Care 9-13
What to Do with Used Oil
Used engine oil contains elements
that can be unhealthy for your skin
and could even cause cancer. Do
not let used oil stay on your skin.
Clean your skin and nails with soap
and water, or a good hand cleaner.
Wash or properly dispose of clothing
or rags. See the manufacturer's
warnings about the use and
disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash, pouring it on the ground, into
sewers, or into streams or bodies of
water. Recycle it by taking it to a
place that collects used oil.
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check
the transmission fluid level.
A transmission fluid leak is the
only reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer/retailer service department
and have it repaired as soon as
possible.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, this should be
done at your dealer/retailer service
department. Contact your dealer/
retailer for additional information or
the procedure can be found in the
service manual. To purchase a
service manual, seeService
Publications Ordering Information
on
page 12‑12. Change the fluid and filter at the
intervals listed in
Scheduled
Maintenance
on page 10‑2, and be
sure to use the fluid listed in
Recommended Fluids and
Lubricants on page 10‑7.
Engine Air Cleaner/Filter
See Engine Compartment Overviewon page 9‑6
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the
Maintenance IIintervals and replace
it at the first oil change after each
83 000 km (50,000 mile) interval.
See Scheduled Maintenance
on
page 10‑2

10-4 Service and Maintenance
.Windshield wiper blade
inspection for wear, cracking,
or contamination and windshield
and wiper blade cleaning,
if contaminated. SeeExterior
Care
on page 9‑85. Worn or
damaged wiper blade
replacement. See Wiper Blade
Replacement on page 9‑28.
.Body hinges and latches, key
lock cylinders, folding seat
hardware, and sunroof (if
equipped) lubrication. See
Recommended Fluids and
Lubricants
on page 10‑7. More
frequent lubrication may be
required when vehicle is
exposed to a corrosive
environment. Applying silicone
grease on weatherstrips with a
clean cloth makes them last
longer, seal better, and not stick
or squeak.
.Restraint system component
check. See Safety System
Check on page 2‑23.
.Automatic transmission fluid
level check and adding fluid,
if needed. See Automatic
Transmission Fluid
on
page 9‑13.
.Engine air cleaner filter
inspection. See Engine Air
Cleaner/Filter on page 9‑13.
Additional Required Services
At Each Fuel Stop
.Engine oil level check. See
Engine Oil on page 9‑10.
.Engine coolant level check. See
Engine Coolant on page 9‑16.
.Windshield washer fluid level
check. See Washer Fluidon
page 9‑22.
Once a Month
.Tire inflation check. See Tire
Pressure on page 9‑52.
.Tire wear inspection. See Tire
Inspection on page 9‑58. Once a Year
.See
Starter Switch Checkon
page 9‑26.
.See Automatic Transmission
Shift Lock Control System
Check on page 9‑27.
.See Ignition Transmission Lock
Check on page 9‑27.
.See Park Brake and P (Park)
Mechanism Checkon
page 9‑28.
.Engine cooling system and
pressure cap pressure check.
Radiator and air conditioning
condenser outside cleaning. See
Cooling System on page 9‑15.
.Exhaust system and nearby heat
shields inspection for loose or
damaged components.
.Accelerator pedal check for
damage, high effort, or binding.
Replace if needed.

Service and Maintenance 10-5
First Engine Oil Change After
Every 40 000 km/25,000 Miles
.Fuel system inspection for
damage or leaks.
First Engine Oil Change After
Every 80 000 km/50,000 Miles
.Engine air cleaner filter
replacement. See Engine Air
Cleaner/Filter on page 9‑13.
.Automatic transmission fluid
change (severe service) for
vehicles mainly driven in heavy
city traffic in hot weather, in hilly
or mountainous terrain, when
frequently towing a trailer,
or used for taxi, police,
or delivery service. See
Automatic Transmission Fluid
on
page 9‑13.
.Transfer case fluid change
(severe service) for vehicles
mainly driven in hilly or
mountainous terrain, when
frequently towing a trailer,
or used for taxi, police,
or delivery service.
First Engine Oil Change After
Every 160 000 km/100,000 Miles
.Automatic transmission fluid
change (normal service). See
Automatic Transmission Fluid
on
page 9‑13.
.Transfer case fluid change
(normal service).
.Spark plug replacement. An
Emission Control Service. First Engine Oil Change After
Every 240 000 km/150,000 Miles
.Engine cooling system drain,
flush, and refill, cooling system
and cap pressure check, and
cleaning of outside of radiator
and air conditioning condenser
(or every 5 years, whichever
occurs first). See
Cooling
System
on page 9‑15. An
Emission Control Service.
.Engine accessory drive belt
inspection for fraying, excessive
cracks, or obvious damage and
replacement, if needed. An
Emission Control Service.

10-6 Service and Maintenance
ServiceMaintenanceIMaintenance
II
Change engine oil and filter. Reset oil life system. ••
Engine coolant level check. ••
Windshield washer fluid level check. ••
Tire inflation pressures check. ••
Tire wear inspection. ••
Rotate tires. ••
Fluids visual leak check. ••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). ••
Brake system inspection. ••
Steering and suspension inspection. •
Engine cooling system inspection. •
Windshield wiper blades inspection. •
Body components lubrication. •
Restraint system components check. •
Automatic transmission fluid level check. •
Engine air cleaner filter inspection (vehicles not driven in dusty conditions). •

Technical Data 11-3
ApplicationCapacities
Metric English
Transmission Fluid (Drain and Refill)
2.4L L4 6–Speed Automatic* 8.5 L 9.0 qt
3.0L V6 6–Speed Automatic* 9.0 L 9.5 qt
Wheel Nut Torque 170 Y125 ft lb
*See Automatic Transmission Fluid
on page 9‑13for information on checking fluid level.
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
2.4L L4 WAutomatic 0.9 mm (0.035 in)
3.0L V6 YAutomatic 1.1 mm (0.043 in)