2020 GMC SAVANA check engine

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
310 Service and Maintenance
Battery
The 12-volt battery supplies power
to start the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a
battery with full cranking power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Belts
. Belts may need replacing if they
squeak or show signs of
cracking or splitting.
. Trained dealer technicians have
access to tools and equipment
to inspect the belts and
recommend adjustment or
replacement when necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.
Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants 0312 for GM approved
fluids.
. Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
. Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled. Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.
Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
318 Technical Data
ApplicationCapacities
Metric English
Cutaway (Standard Tank) 124.9 L 33.0 gal
Passenger and Cargo 117.3 L 31.0 gal
* 4 039 mm (159 in) wheelbase or 4 496 mm (177 in) wheelbase only
Wheel Nut Torque 190 Y140 lb ft
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
4.3L V6 (LV1) PAutomatic 0.95–1.10 mm (0.037–
0.043 in)
6.0L V8 (L96) GAutomatic 0.95–1.10 mm (0.037–
0.043 in)
6.0L V8 (LC8) (Capable of
Being Upfit for Gaseous Fuel) B
Automatic 0.95–1.10 mm (0.037–
0.043 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage
the spark plug.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Customer Information 329
original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature
Owner’s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’s manuals, warranty
manuals, infotainment manuals, and
portfolios. Portfolios include an
owner ’s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.
Current and Past Models
Service manuals and customer
literature are available for many
current and past model year GM
vehicles.
To order, call 1-800-551-4123
Monday–Friday, 8:00 a.m.–6:00 p.m.
eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see
Helm, Inc. at: www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds.
Radio Frequency
Statement
This vehicle has systems that
operate on a radio frequency that
complies with Part 15/Part 18 of the
Federal Communications
Commission (FCC) rules and with

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Index 343
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 215
Accessory Power . . . . . . . . . . . . . . . 166
Add-On Electrical Equipment . . . 212
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 336
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 309
Air Cleaner/Filter, Engine . . . . . . . 228
Air Conditioning . . . . . . . . . . . 143, 146
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 148
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 54
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 49
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 48
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 49
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 48
Where Are the Airbags? . . . . . . . . 46
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 54
Light On-Off . . . . . . . . . . . . . . . . . . . . 91
On-Off Light . . . . . . . . . . . . . . . . . . . . 91 Airbags (cont'd)
On-Off Switch . . . . . . . . . . . . . . . . . . 50
Readiness Light . . . . . . . . . . . . . . . . 90
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . 53
System Check . . . . . . . . . . . . . . . . . . 43
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 19
Alert Side Blind Zone (SBZA) . . . . . . 187
All-Season Tires . . . . . . . . . . . . . . . . 255
AM-FM Radio . . . . . . . . . . . . . . . . . . . 122
Antenna Fixed Mast . . . . . . . . . . . . . . . . . . . 125
Multi-band . . . . . . . . . . . . . . . . . . . . 125
Antilock Brake System (ABS) . . . 175
Warning Light . . . . . . . . . . . . . . . . . . . 95
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 293
Interior . . . . . . . . . . . . . . . . . . . . . . . . 297
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . 85
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 324
Audio Theft-Deterrent Feature . . . . . . . .117
Audio Players
CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
344 Index
AutomaticDoor Locks . . . . . . . . . . . . . . . . . . . . . 14
Headlamp System . . . . . . . . . . . . . 111
Transmission . . . . . . . . . . . . . . . . . 170
Transmission Fluid . . . . . . 224, 227
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 173
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 242
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 130
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 125
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 240
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . .115
Load Management . . . . . . . . . . . . .114
Power Protection . . . . . . . . . . . . . .115
Battery - North America . . . . 239, 286
Blade Replacement, Wiper . . . . . 243
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . 136
Brake
System Warning Light . . . . . . . . . . 94
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Brakes (cont'd)
Antilock . . . . . . . . . . . . . . . . . . . . . . . 175
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 176
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Parking . . . . . . . . . . . . . . . . . . . . . . . 176
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 152
Break-In, New Vehicle . . . . . . . . . . 161
Bulb Replacement Center High-MountedStoplamp (CHMSL) . . . . . . . . . 246
Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 244
Halogen Bulbs . . . . . . . . . . . . . . . . 244
Headlamp Aiming . . . . . . . . . . . . . 244
Headlamps . . . . . . . . . . . . . . . . . . . 244
License Plate Lamps . . . . . . . . . 247
Taillamps . . . . . . . . . . . . . . . . . . . . . 245
Buying New Tires . . . . . . . . . . . . . . . 270
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 81
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 215 California
Proposition
65 Warning . . . . . . . . . .214, 239, 286,
Back Cover
Camera Rear Vision (RVC) . . . . . . . . . . . . 183
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 317
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 169
Winter Driving . . . . . . . . . . . . . . . . 155
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 77
Cargo Door Relocking . . . . . . . . . . . 14
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 125
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . . . 246
Chains, Tire . . . . . . . . . . . . . . . . . . . . 274
Charging System Light . . . . . . . . . . 92
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . 92
Ignition Transmission Lock . . . 242
Child Restraints Infants and Young Children . . . . . 57

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
346 Index
Driving (cont'd)Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 195
Defensive . . . . . . . . . . . . . . . . . . . . . 151
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 151
Hill and Mountain Roads . . . . . . 155
If the Vehicle is Stuck . . . . . . . . . 157
Loss of Control . . . . . . . . . . . . . . . 153
Off-Road Recovery . . . . . . . . . . . 153
Vehicle Load Limits . . . . . . . . . . . 157
Wet Roads . . . . . . . . . . . . . . . . . . . 154
Winter . . . . . . . . . . . . . . . . . . . . . . . . 155
Dual Tire Rotation . . . . . . . . . . . . . . . . . . . . . . 269
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 192
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 212
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 252
Fuses and Circuit Breakers . . . 248
Overload . . . . . . . . . . . . . . . . . . . . . 247
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 335 Engine
Air Cleaner/Filter . . . . . . . . . . . . . 228
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . 92
Compartment Overview . . . . . . . 217
Coolant Heater . . . . . . . . . . . . . . . 166
Coolant Temperature Gauge . . . . 89
Cooling System . . . . . . . . . . . . . . . 229
Drive Belt Routing . . . . . . . . . . . . 319
Exhaust . . . . . . . . . . . . . . . . . . . . . . 169
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Oil Life System . . . . . . . . . . . . . . . 223
Oil Pressure Gauge . . . . . . . . . . . . 88
Oil Pressure Light . . . . . . . . . . . . . . 97
Overheating . . . . . . . . . . . . . . . . . . 234
Power Messages . . . . . . . . . . . . . 104
Running While Parked . . . . . . . . 170
Starting . . . . . . . . . . . . . . . . . . . . . . . 164
Enhanced Technology Glass . . . . 24
Entry Lighting . . . . . . . . . . . . . . . . . . . 114
Entry/Exit Lighting . . . . . . . . . . . . . . 114
Equipment, Towing . . . . . . . . . . . . . 207
Event Data Recorders . . . . . . . . . . 332
Exit Lighting . . . . . . . . . . . . . . . . . . . . 114
Extender, Seat Belt . . . . . . . . . . . . . . 42
Exterior Lamp Controls . . . . . . . . . 109
Exterior Lamps Off Reminder . . . 110 Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 115
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 235
Fast Idle System . . . . . . . . . . . . . . . . 165
Filter,
Engine Air Cleaner . . . . . . . . . . . 228
Fixed Mast Antenna . . . . . . . . . . . . 125
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 110
Flashers, Hazard Warning . . . . . . 112
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 275 Changing . . . . . . . . . . . . . . . . . . . . . 276
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 301
Fluid
AutomaticTransmission . . . . . . . . . . . 224, 227
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 238
Power Steering . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 236
Folding Mirrors . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 185
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 329

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Index 347
Front SeatsAdjustment . . . . . . . . . . . . . . . . . . . . . 27
Front Storage . . . . . . . . . . . . . . . . . . . . 76
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 244
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 191
Economy, Driving for Better . . . 150
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 194
Filling the Tank . . . . . . . . . . . . . . . 193
Foreign Countries . . . . . . . . . . . . 191
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Low Fuel Warning Light . . . . . . . . . 98
Prohibited Fuels . . . . . . . . . . . . . . 191
Recommended . . . . . . . . . . . . . . . 191
Top Tier . . . . . . . . . . . . . . . . . . . . . . 190
Full-Size Spare Tire . . . . . . . . . . . . 286
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 252
Fuses and Circuit Breakers . . . 248
G
Gauges Engine Coolant Temperature . . . 89
Engine Oil Pressure . . . . . . . . . . . . 88 Gauges (cont'd)
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Odometer . . . . . . . . . . . . . . . . . . . . . . . 87
Speedometer . . . . . . . . . . . . . . . . . . . 87
Trip Odometer . . . . . . . . . . . . . . . . . . 87
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . 89
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . 85
General Information Service and Maintenance . . . . . 302
Towing . . . . . . . . . . . . . . . . . . . . . . . . 195
Vehicle Care . . . . . . . . . . . . . . . . . . 214
Glass, Enhanced Technology . . . . 24
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 323
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 244
Hazard Warning Flashers . . . . . . . 112
Head Restraints . . . . . . . . . . . . . . . . . 27
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 244
Automatic . . . . . . . . . . . . . . . . . . . . . . 111
Bulb Replacement . . . . . . . . . . . . 244
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . .110
Flash-to-Pass . . . . . . . . . . . . . . . . . .110
High-Beam On Light . . . . . . . . . . . . 98 Headlamps (cont'd)
High/Low Beam Changer . . . . . .110
Heated Mirrors . . . . . . . . . . . . . . . . . . . 22
Heater Engine Coolant . . . . . . . . . . . . . . . 166
Heating . . . . . . . . . . . . . . .143, 145, 146
High-Beam On Light . . . . . . . . . . . . . 98
Hill and Mountain Roads . . . . . . . . 155
Hill Start Assist (HSA) . . . . . . . . . . 176
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 34
HVAC . . . . . . . . . . . . . . . . .143, 145, 146
I
Idle System Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Ignition Positions . . . . . . . . . . . . . . . 162
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 242
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 20
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . . . 96
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 57
Information Publication Ordering . . . . . . . . . . 329