fuse CHEVROLET TAHOE 2021 User Guide

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
336 Vehicle Care
FusesUsage
1 –
2 –
3 –
4 –
6 ELM 7 7 ELM 4
8 –
9 ELM 5
10 ELM 6 11 Spare
12 –
13 Washer front
14 Washer rear 15 Rec 2
16 Power sounder 17 Spare
19 DC/AC inverter
20 IECR 2 21 –
22 IECL 2 Fuses
Usage
24 EBCM 25 REC 1
26 Camera wash 27 Horn
28 Headlamp RT
29 Headlamp LT
30 ELM 3 31 ELM 1
32 –
33 Not R/C
34 –
37 OBD body
38 MISC body
39 Upfitter
40 MISC IP 41 Trailer parking lamps
42 Right taillamp
44 Trailer tow 45 Secondary axle motor
46 ECM ignition Fuses
Usage
47 OBD engine
48 –
49 TCM 50 A/C clutch 51 TCCM
52 Front wiper
53 –
54 Left taillamps 55 Trailer back up lamp
56 SADS 57 Spare
58 Starter motor
60 AFM 1 61 ALC main
62 ICCM/CVS/DEF
63 Trailer brake
65 AUX UEC
66 Left cool fan motor 67 AFM2
68 ALC motor

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
Vehicle Care 337
FusesUsage
69 Starter pinion 71 Cool fan motor lower
72 Right cool fan motor/ Lower
73 Left trailer stop turn lamp
74 TIM 2 75 DEFC
76 ELEC RNG BDS
78 ECM
79 –
80 Cabin cool pump 17W 81 Right trailer stop turn lamp
82 TIM 1
83 FTZM
84 Trailer battery 85 Engine
86 ECM 87 Injector B even
88 02 B sensor Fuses
Usage
89 02 A sensor
90 Injector A odd 91 ECM throttle control
92 Cool fan clutch AERO shutter
Relays Usage
5 –
18 DC/AC inverter
23 –
35 Park lamp
36 Run/Crank
43 Secondary axle motor
59 A/C clutch
64 Starter motor 70 Starter pinion 77 PowertrainInstrument Panel Fuse Block
The right instrument panel fuse block access
door is on the passenger side edge of the
instrument panel.
Pull off the cover to access the fuse block.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
338 Vehicle Care
There are relays on the back of the fuse
block. To access, press the tabs and remove
the fuse block.The vehicle may not be equipped with all of
the fuses, relays, and features shown. Fuses Usage
F1 Right door
F2 Left door
F3 UGDO/OHC/camera
F4 BCM 2 F5 Displays
F6 Front blower
F8 Left door panel
F10 Tilt/column lock F11 USB/DLC
F12 CGM/onstar
F14 Right door panel F17 Steering wheel control
F18 AVM 1
F19 –
F20 –
F21 –
F22 Heated wheel
F23 –
F24 –
F25 SEO/UPFITTER

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
Vehicle Care 339
FusesUsage
F26 USB/SEO RAP F27 APO/RAP
F28 Spare
F30 SDM AOS F31 BCM 3
F32 CSM/USB
F33 BCM 4
F34 Out of park
F40 –
F41 –
F42 Electric park brake switch
F43 RSE
F44 AVM 2 F45 Radio module
F46 BCM 1A F47 –
F48 TCM
F49 BCM 1 F50 DMS F51 – Fuses
Usage
F52 –
F53 –
F54 Sunroof F55 APO 3
F56 DC/DC CNV BATT 1 F57 DC/DC CNV BATT 2
F58 Spare
F59 –
Circuit
Breakers Usage
CBO1 APO1
CBO2 APO2
Relays Usage
K1 –
K2 RAP/ACCY 1
K4 RAP/ACCY 2 K5 –Rear Compartment Fuse Block
The rear compartment fuse block is behind
the access panel on the left side of the
compartment.
Pull the panel out by grabbing the finger
access slot at the rear edge.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
340 Vehicle Care
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
F01 RFA
F02 WCM
F03 Heated seat module row 1 (Battery 1)
F04 MSM driver F05 –
F06 –
F07 Amp aux 2
F08 –
F09 SEO UPFTR 2 F10 Motor seatbelt passenger F11 Power folding seat row 2
F12 GBS
F13 –
F14 –
F15 Heated seat module row 1 (Battery 2)
F16 RH CINCH latch F17 Memory seat module passenger
F18 Rear wiper Fuses Usage
F19 Motor seatbelt driver
F20 Rear defogger F21 –
F22 Rear HVAC display control
F23 EOCM
F24 Amp aux 3 F25 OBS DET
F26 RDCM F27 Amp aux 1
F28 VPM
F29 –
F30 –
F31 Amp
F32 –
F33 ICCM
F34 Heated seat module row 2 F35 HFCR
F36 ELM F37 –
F38 Power slide console

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
Vehicle Care 341
FusesUsage
F39 –
F40 –
F41 –
F42 –
F43 UPA
F44 –
F45 AFL AHL
F46 Rear HVAC blower motor F47 LH CINCH latch
F48 Power seat recline module
F49 Lift glass F50 Driver power seat F51 Power liftgate module
F52 Passenger power seat
K53 –
K54 –
K55 L/GLASSWheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits 0222.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
(Continued)
Warning (Continued)
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact —such as when
hitting a pothole. Keep tires at the
recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only the dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
(Continued)

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13690484) - 2021 - crc - 8/17/20
Index 423
Driving (cont'd)Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Hill and Mountain Roads . . . . . . . . . . . . . . 220
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 221
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 216
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 215
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 222
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Dual Automatic Climate Control
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Dynamic Fuel Management . . . . . . . . . . . . . . . 231
E
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . . . 240
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . 240
Electric Parking Brake Light . . . . . . . . . . . . . . . 112
Electrical Equipment, Add-On . . . . . . . . . . . . 306
Electrical System Engine Compartment Fuse Block . . . . . . . 333
Fuses and Circuit Breakers . . . . . . . . . . . . . 333
Instrument Panel Fuse Block . . . . . . . . . . . 337
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Rear Compartment Fuse Block . . . . . . . . . 339
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 318
Check Light (Malfunction Indicator) . . . . 110
Compartment Overview . . . . . . . . . . . . . . . . 312
Coolant Temperature Gauge . . . . . . . . . . . 107
Coolant Temperature Warning Light . . . . 115
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 319
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . 400
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 316
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . 106
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 117
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 124
Running While Parked . . . . . . . . . . . . . . . . . 232
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Engine Air Filter Life System . . . . . . . . . . . . . .318
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 287
Event Data Recorders . . . . . . . . . . . . . . . . . . . . . 411
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . . 231
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . 133
Exterior Lamps Off Reminder . . . . . . . . . . . . . 135 Exterior Lighting Battery Saver . . . . . . . . . . 140
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 318
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 136
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Floor Console Storage . . . . . . . . . . . . . . . . . . . . . .91
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Fluid
Automatic Transmission . . . . . . . . . . . . . . . . 317
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Four-Wheel Drive Transfer Case . . . . . . . . 236
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Forward Collision Alert (FCA) System . . . . 267
Four Corner Air Suspension Light . . . . . . . . . 116
Four Corner Air Suspension System . . . . . . 248
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . .236, 327
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . . 113
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13690484) - 2021 - crc - 8/17/20
424 Index
Front Pedestrian Braking (FPB)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Front Seats Heated and Ventilated . . . . . . . . . . . . . . . . . . 43
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Dynamic Management . . . . . . . . . . . . . . . . . 231
Economy, Driving for Better . . . . . . . . . . . 213
Filling a Portable Fuel Container . . . . . . . 279
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 278
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 278
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Low Fuel Warning Light . . . . . . . . . . . . . . . . 117
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 277
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 277
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 368
Fuses Engine Compartment Fuse Block . . . . . . . 333
Fuses and Circuit Breakers . . . . . . . . . . . . . 333
Instrument Panel Fuse Block . . . . . . . . . . . 337
Rear Compartment Fuse Block . . . . . . . . . 339
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . 129Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 Gauges
Engine Coolant Temperature . . . . . . . . . . . 107
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 106
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 105
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Warning Lights and Indicators . . . . . . . . . 101
General Information
Service and Maintenance . . . . . . . . . . . . . . 385
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Glass Replacement . . . . . . . . . . . . . . . . . . . . . . . 330
Global Positioning System (GPS) . . . . . . . . . .174
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404
Guidance Problems with the Route . . . . . . . . . . . . . . . 175
H
Hazard Warning Flashers . . . . . . . . . . . . . . . . 136
HD Radio Technology . . . . . . . . . . . . . . . . . . . . 149
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Head-up Display . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 331
Daytime Running Lamps (DRL) . . . . . . . . . 135
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 118
High/Low Beam Changer . . . . . . . . . . . . . . 135
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 118
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 94
Heated and Ventilated Front Seats . . . . . . . 43
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204, 207
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 118
High-Speed Operation . . . . . . . . . . . . . . . . . . . 347
Hill and Mountain Roads . . . . . . . . . . . . . . . . 220
Hill Descent Control (HDC) . . . . . . . . . . . . . . . 244
Hill Descent Control Light . . . . . . . . . . . . . . . . . 113
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 242
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
How to Wear Seat Belts Properly . . . . . . . . . .53
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204, 207