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Owner’s manual specs

2020 Chevrolet Suburban Specs: Oil Capacity, Fluids, Maintenance Schedule & Fuse Box

Figures for the 2020 Chevrolet Suburban, copied from Chevrolet’s own owner’s manual. Every one links to the manual page it came from.

From the manufacturer’s manuals. Every figure here is copied from the manufacturer's own manual, with a link to the page it came from. Where a manual is unclear or contradicts itself, we leave the figure out.

Engines in this manual: 5.3L, 6.2L. Figures that differ by engine say which engine they are for.

Fluids & capacities

All engines

5.3L

6.2L

Maintenance schedule

Normal service schedule

Use this for ordinary driving.

ServiceWhen
Replace engine air cleaner filter. (3)

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 385

Every 45,000 mi(72,000 km)
Replace passenger compartment air filter. (1)

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 385

Every 22,500 mi(36,000 km)
Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 385

Every 7,500 mi(12,000 km)

Severe service schedule

Use this if you tow, idle a lot, drive short trips in the cold, or run in dust.

ServiceWhen
Change automatic transmission fluid and filter.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 387

Every 45,000 mi(72,000 km)
Replace engine air cleaner filter. (3)

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 387

Every 45,000 mi(72,000 km)
Replace passenger compartment air filter. (1)

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 387

Every 22,500 mi(36,000 km)
Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 387

Every 7,500 mi(12,000 km)

Oil life & reset procedures

Engine oil life system reset

Before you start

  • Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change.

Steps

  1. Display the OIL LIFE REMAINING on the DIC. If the vehicle does not have DIC buttons, the vehicle must be in P (Park) to access this display. See Driver Information Center (DIC) (Base Level) 0 145 or Driver Information Center (DIC) (Uplevel) 0 147.
  2. Press and hold V, or the trip odometer reset stem if the vehicle does not have DIC buttons, for several seconds. The oil life will change to 100%.
  3. Display the OIL LIFE REMAINING on the DIC. If the display shows 100%, the system is reset.
  4. Allow the engine to idle (500- 800 rpm) for at least one minute. Slowly release the brake pedal.
  5. Keep the engine running and check the transmission fluid temperature on the Driver Information Center (DIC). See Driver Information Center (DIC) (Base Level) 0 145 or Driver Information Center (DIC) (Uplevel) 0 147.
  6. Using the transmission fluid temperature reading, determine and perform the appropriate check procedure. If the transmission fluid temperature reading is not within the required temperature ranges, allow the vehicle to cool, or operate the vehicle until the appropriate transmission fluid temperature is reached.

You’ll know it worked: The oil life will change to 100%.

Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may not be covered by the vehicle warranty.

Too much or too little fluid can damage the transmission.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 296

Fuse box locations & fuse chart

Engine Compartment Fuse Block

Where to find it

Engine Compartment Fuse Block The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.

Lift the cover to access the fuse block.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 320

What each fuse protects

FuseAmpsProtectsSource
1—Power Assist Stepsp.322
2—Antilock brake system pumpp.322
3—Interior BEC LT1p.322
4—Passenger motorized seat beltp.322
5—Suspension leveling compressorp.322
6—4WD transfer case electronic controlp.322
9—Fuel pumpp.324
10—Electric parking brake/-p.322
13—Interior BEC LT2p.322
14—Rear BEC 1p.322
17—Driver motorized seat beltp.322
21—Automatic headlamp leveling/ Exhaust solenoidp.322
22—Fuel pumpp.322
23—Integrated chassis control modulep.322
24—Real time dampeningp.322
25—Fuel pump power modulep.322
26—Active hydraulic assist/Battery regulated voltage controlp.322
28—Upfitter 2p.322
29—Upfitter 2p.324
31—Trailer interface modulep.322
34—Reverse lampsp.322
35—Antilock brake system valvep.322
36—Trailer brakesp.322
37—Upfitter 3p.324
39—Right trailer stoplamp/Turn signal lampp.322
40—Left trailer stoplamp/turn signal lampp.322
41—Trailer parking lampsp.322
42—Right parking lampsp.322
43—Left parking lampsp.322
44—Upfitter 3p.322
45—Automatic level control/Run/Crankp.323
47—Upfitter 4p.323
48—Upfitter 4p.324
49—Reverse lampsp.323
51—Parking lampp.324
59—Euro trailerp.323
60—Air conditioning controlp.323
63—Upfitter 1p.323
64—Secondary fuel pumpp.324
67—Trailer batteryp.323
68—Secondary fuel pumpp.323
69—RC upfitter 3 and 4p.323
70—VBAT upfitter 3 and 4p.323
72—Upfitter 1p.324
74—Engine control module/Ignitionp.323
75—Miscellaneous/ Ignition/-p.323
76—Transmission/ Ignitionp.323
77—RC upfitter 1 and 2p.323
78—VBAT upfitter 1 and 2p.323
83—Euro trailer/RCp.323
84—Run/Crankp.324
87—MAF/IAT/Humidity/ TIAP sensorp.323
88—Injector A - oddp.323
89—Injector B - evenp.323
90—O2 sensor Bp.323
91—Throttle controlp.323
92—Engine control modulep.324
93—Hornp.323
94—Fog lampsp.323
95—High-beam headlampsp.323
100—O2 sensor Ap.323
102—Engine control module/ Transmission control modulep.324
103—Auxiliary interior heaterp.324
104—Starterp.324
107—Aeroshutterp.324
109—Police upfitterp.324
112—Starterp.324
114—Front windshield washerp.324
115—Rear window washerp.324
116—Left cooling fanp.324
121—Right HID headlampp.324
122—Left HID headlampp.324
123—Right cooling fanp.324

Instrument Panel Fuse Block (Left)

Where to find it

Instrument Panel Fuse Block (Left) The left instrument panel fuse block access door is on the driver side edge of the instrument panel.

Pull off the cover to access the fuse block.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 324

What each fuse protects

FuseAmpsProtectsSource
4—Accessory power outlet 1p.325
5—Accessory power outlet from retained accessory powerp.325
6—Accessory power outlet from battery powerp.325
7—Universal garage door opener/SEO Roof beacon switchp.325
8—SEO/Retained accessory powerp.325
10—Body control module 3p.325
11—Body control module 5p.325
12—Steering wheel control backlightingp.325
16—Discrete logic ignition sensorp.326
17—Video processing module/Virtual key modulep.326
18—Mirror window modulep.326
19—Body control module 1p.326
20—Front bolsterp.326
24—HVAC ignition/AUX HVAC ignitionp.326
25—Instrument cluster/ Ignition sensing diagnostic module ignitionp.326
26—Tilt column/Tilt column lock 1/SEO 1/SEO 2p.326
27—Data link connector/ Driver seat modulep.326
28—Passive entry, Passive start/HVAC battery/CGMp.326
29—Content theft deterrentp.326
33—SEO automatic level control/Left heated seatp.326
34—Park enable/Electric adjustable pedalp.326
36—Miscellaneous/Run crankp.326
37—Heated steering wheelp.326
38—Steering column lock 2p.326
42—Euro trailerp.326
43—Left doorsp.326
44—Driver power seatp.326
46—Right heated, cooled, or ventilated seatp.326
47—Left heated, cooled, or ventilated seatp.326
50—Accessory power outlet 2p.326
52—Retained accessory powerp.326

Instrument Panel Fuse Block (Right)

Where to find it

Instrument Panel Fuse Block (Right) 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.

Source: 2020 Chevrolet Tahoe / Suburban Owner Manual, page 327

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