2020 GMC SAVANA air conditioning

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Vehicle Care 259
(6) Service Description:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Light Truck (LT-Metric) Tire
(1) Light Truck (LT-Metric)
Tire
:The United States version
of a metric tire sizing system.
The letters LT as the first two
characters in the tire size mean
a light truck tire engineered to
standards set by the U.S. Tire
and Rim Association. (2) Tire Width
:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item 3 of the light truck
(LT-Metric) tire illustration, it
would mean that the tire's
sidewall is 75 percent as high as
it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Load Range
:Load Range. (7) Service Description
:The
service description indicates the
load index and speed rating of a
tire. If two numbers are given as
in the example, 120/116, then
this represents the load index for
single versus dual wheel usage
(single/dual). The speed rating is
the maximum speed a tire is
certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
windows, power seats, and air
conditioning.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Vehicle Care 289
terminal if the vehicle has one.
Do not let the other end touch
metal. Connect it to the
positive (+) terminal of the good
battery. Use a remote
positive (+) terminal if the
vehicle has one.
7. Now connect the black negative (−) cable to the
negative (−) terminal of the
good battery. Use a remote
negative (−) terminal if the
vehicle has one.
Do not let the other end touch
anything until the next step.
The other end of the
negative (−) cable does not go
to the dead battery. It goes to a
heavy, unpainted metal engine
part or to a remote negative (−)
terminal on the vehicle with the
dead battery. On your van, use
the unpainted radio antenna
bracket as a remote
negative (−) terminal.
8. Connect the other end of thenegative (−) cable to the
negative (−) terminal location
on the vehicle with the dead
battery. On your van, use the
unpainted radio antenna
bracket as a remote
negative (−) terminal.
Caution
The vehicle uses the unpainted
radio antenna bracket as a
remote negative (-) terminal.
Move the antenna coaxial cable
(Continued)
Caution (Continued)
out of the way before clamping
the negative jumper cable to the
fixed antenna bracket. Avoid
touching the negative cable clamp
to the air conditioning line. Failure
to do either of these could
damage the vehicle. The repairs
would not be covered by the
vehicle warranty.
9. Now start the vehicle with the good battery and run the
engine for a while.
10. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
Caution
If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
(Continued)

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
304 Service and Maintenance
Maintenance
Schedule
Owner Checks and Services
Check the engine oil level. See
Engine Oil0221.
Once a Month
. Check the tire inflation
pressures, including the spare.
See Tire Pressure 0262.
. Inspect the tires for wear. See
Tire Inspection 0267.
. Check the windshield washer
fluid level. See Washer Fluid
0 236.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km (600 mi). If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and
filter must be changed at least once
a year and the oil life system must be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km (3,000 mi) since the
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System 0223.
Extended Idle Use
When the vehicle is used in a way
that requires extended idle time,
one hour of use shall be deemed
the same as 53 km (33 mi). See
Driver Information Center (DIC) 099
for hourmeter.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years.
This service requires replacement of
the desiccant to help the longevity
and efficient operation of the air
conditioning system. This service
can be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km
(7,500 mi)
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0267.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0221 and
Engine Oil Life System 0223.
. Check engine coolant level. See
Cooling System 0229.
. Check windshield washer fluid
level. See Washer Fluid 0236.
. Check tire inflation pressures,
including the spare. See Tire
Pressure 0262.
. Inspect tire wear. See Tire
Inspection 0267.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 228.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
306 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Normal12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Lubricate the steering linkage.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Inspect evaporative control system. (1)@ @@
Replace engine air cleaner filter. (2)@@@
Replace spark plugs. Inspect spark plug wires
and/or boots.@
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Replace windshield wiper blades. (6)
@ @ @ @ @ @ @ @ @ @
Replace air conditioning desiccant. (7)

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Service and Maintenance 307
Footnotes—Maintenance
Schedule Additional Required
Services - Normal
(1) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(2) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0228.
(3) Or every five years, whichever
comes first. See Cooling System
0 229. (4)
Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(5) Replace brake fluid every five
years. See Brake Fluid 0238.
(6) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0243.
(7) Replace air conditioning
desiccant every seven years.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
308 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi 180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Lubricate the steering linkage.@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Inspect evaporative control system. (1)@ @@
Replace engine air cleaner filter. (2)@@@
Change automatic transmission fluid and filter.@@@
Replace spark plugs. Inspect spark plug wires
and/or boots.@
Drain and fill engine cooling system. (3)@
Visually inspect accessory drive belts. (4)@
Replace brake fluid. (5)
Replace windshield wiper blades. (6)
@ @ @ @ @ @ @ @ @ @
Replace air conditioning desiccant. (7)
Footnotes—Maintenance
Schedule Additional Required
Services - Severe
(1) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition. (2)
Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0228. (3)
Or every five years, whichever
comes first. See Cooling System
0 229.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Service and Maintenance 309
(4)Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(5) Replace brake fluid every five
years. See Brake Fluid 0238.
(6) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0243.
(7) Replace air conditioning
desiccant every seven years.Special Application
Services
. Vehicles with Dual Wheels:
Check dual wheel nut torque at
160, 1 600, and 10 000 km (100,
1,000, and 6,000 mi) of driving.
Repeat this service whenever a
tire/wheel is serviced or
removed.
. Severe Commercial Use
Vehicles Only: Lubricate chassis
components every oil change.
. Have underbody flushing service
performed. See “Underbody
Maintenance” inExterior Care
0 293.
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required.
It is recommended that your dealer
perform these services —their
trained dealer technicians know
your vehicle best. Your dealer can
also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention.
The following list is intended to
explain the services and conditions
to look for that may indicate
services are required.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Technical Data 317
Vehicle Data
Capacities and Specifications
If the vehicle has a diesel engine, see the Duramax diesel supplement for more information.
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and
Lubricants 0312 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant R134a For the air conditioning system refrigerant charge amount, see the refrigerant label located under thehood. See your dealer for more information.
Engine Cooling System without Rear Heat* 4.3L V6 10.1 L 10.7 qt
6.0L V8 13.1 L 13.8 qt
Engine Cooling System with Rear Heat* 4.3L V6 12.4 L 13.1 qt
6.0L V8 16.1 L 17.0 qt
*Engine cooling system capacity values are based on the entire cooling system and its components.
Engine Oil with Filter 5.7 L 6.0 qt
Fuel Tank Cutaway (Optional Tank)* 215.7 L 57.0 gal