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2020 Chevrolet Blazer

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2020 Blazer.

Model year202620252024202320222021202020191990

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity5.28 qtOEM · verified
Engine oil typeDEXOS I* Gen II 0W–20OEM · verified
Lug nut torque140.0 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 94R Must use a AGM VRLA battery. Vehicles battery is vented to the outside. · 720 CCA battery, OE oil filter 12693541. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 94R Must use a AGM VRLA battery. Vehicles battery is vented to the outside. · 720 CCAOEM · verified
Tire size235/55R20 102HOEM · verified
Wheel / rim8; Option 1: 8; Option 2: 9 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter12693541 alt 25206377
Engine air filter23321606
Spark plug12646780 alt 12680074
Battery88864542
Front wiper blades84586337 alt 84574892
Serpentine belt12649097 alt 12664598
Thermostat55516369 alt 12630780
Cabin air filter13508023

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length191.3 in
Overall width76.8 in
Overall height66.9 in
Wheelbase112.6 in
Curb weight3781 lb
Track (front / rear)66.5 / 66.1 in
Weight distribution (front / rear)59/41

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the Blazer of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.1–8.1 sec0–60 mph (tested)quickest 6.10 sec — 2019 RS
YearTrim / engine0–60¼ mileHPDrivetrain
2019RS 3.6L V66.10 sec14.60 sec308 hpAWD
2019RS 3.6L V66.10 sec14.70 sec308 hpAWD
2019Premier 3.6L V66.20 sec14.80 sec308 hpAWD
2019RS 3.6L V66.30 sec15.00 sec308 hpAWD
2019Cloth 2.5L I-48.10 sec16.30 sec193 hpFWD
2023RS 3.6L V66.60 sec15.10 sec308 hpAWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 5.28 qt of DEXOS I* Gen II 0W–20 engine oil, DOT 3 brake fluid. Torque lug nuts to 140 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Automatic Transmission FluidDEXRON®-VI Automatic Transmission Fluid.
Automatic Transmission Fluid Capacity5.3-6.3
Brake FluidDOT 3
Brake Fluid Capacity2.11 pt
Engine CoolantDex-Cool
Engine Coolant Capacity9.0
Engine CoolantDex-Cool
Engine Coolant Capacity9.5

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)6.3 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)6.3 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)6.3 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)6.3 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs

Chassis torques

Differential Fill PlugRear Drive Axle: 29.0 ft-lbs
Differential drain PlugRear Drive Axle: 29.0 ft-lbs
Driveshaft Flange to TransmissionSlip Drive ft-lbs
Driveshaft Flange to TransmissionSlip Drive ft-lbs
Lug Nuts140.0 ft-lbs
Lug Nuts140 ft-lbs
Transfer Case Fill Plug29.0 ft-lbs
Transfer Case Drain Plug29.0 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-2-3-4-5-6
Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-2-3-4-5-6
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.028–0.031 in
Spark Plug Torque13.0 ft-lbs
Spark Plug ManufacturerAC Delco

Battery & A/C

RefrigerantR1234yf
Refrigerant Capacity1.50 lbs
Oil GroupPAG
RefrigerantR1234yf
Refrigerant Capacity1.50 lbs
Oil TypeGM Part number 19354657 or equivalent.
Oil Capacity4.20 oz
Standard BCI Cranking Performance720 cca

Service checks

Engine Compression100
Engine Compression100
Engine Oil Pressure29.0 psi
Engine Oil Pressure RPMhot @ 1,500 rpm
Engine Oil Pressure22.0-32.0 psi
Engine Oil Pressure RPM@700 RPM 100°C rpm
Engine Oil Pressure10 psi minimum @ Idle psi
Engine Oil Pressure RPM20 psi minimum @ 2,000 RPM

Brakes

Brake Caliper Bolt to Carrier Torque53.0
ABS Sensor TorqueFront: 6.6; Rear: 6.6
Brake Caliper Bolt to Carrier TorqueFront: 53.0 ft-lbs; Rear: 30.0 ft-lbs
ABS Sensor TorqueFront: 6.0; Rear: 6.0
Minimum Pad ThicknessFront: 0.078; Rear: 0.078 in
Minimum Pad ThicknessFront: 0.078 in; Rear: 0.078 in
Vented Rotor Minimum Thickness for ReplacementFront: 1.063; Rear: 0.827
Vented Rotor Minimum Thickness after RefinishFront: 1.102; Rear: .866

Multi-step torque procedures OEM · verified

Steering Track (Rod End) Bolts — tightening sequence 1 stages
190°-100°
Steering Track (Rod End) Bolts — tightening sequence 1 stages
126.0 ft. lbs, Step 2: 90°-100°26 ft. lbs
Front Wheel Hub — tightening sequence 1 stages
174.0 ft. lbs., 60°-75°74 ft. lbs
Rear Wheel Hub — tightening sequence 1 stages
174.0 ft. lbs., Step 2: 15.0°-30°74 ft. lbs
Front Wheel Hub — tightening sequence 1 stages
174.0 ft. lbs., Step 2: 65-75°74 ft. lbs
Rear Wheel Hub — tightening sequence 1 stages
174.0 ft. lbs., Step 2: 15-30°74 ft. lbs
Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
171.0 inch lbs., Step 2: 180°, Step 3: 89.0 inch lbs.71 in
Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
153.0 inch lbs., Step 2: 45°53 in
Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 100°22 ft. lbs
Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 100°22 ft. lbs
Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 45°15 ft. lbs
Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
130.0 ft. lbs., Step 2: 50°30 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
118.0 ft. lbs. Step 2: 75°18 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
118.0 ft. lbs. Step 2: 110°18 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
130.0 ft. lbs. Step 2: 50°30 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
118.0 ft. lbs. Step 2: 110°18 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
118.0 ft. lbs., Step 2: 110°18 ft. lbs
Crankshaft Pulley and/or Center Bolts — tightening sequence 1 stages
128°
Crankshaft Pulley and/or Center Bolts — tightening sequence 1 stages
1140°
Crankshaft Pulley and/or Center Bolts — tightening sequence 1 stages
1111.0 ft. lbs. Step 2: 140°111 ft. lbs
Crankshaft Pulley and/or Center Bolts — tightening sequence 1 stages
174.0 ft. lbs. Step 2: 150°74 ft. lbs
Cylinder Head — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 11.0 ft. lbs. Step 3: 190°22 ft. lbs
Cylinder Head — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 190°22 ft. lbs
Cylinder Head — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 190°22 ft. lbs
Cylinder Head — tightening sequence 1 stages
122.0 ft. lbs., Step 2: 190°22 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
118.0 ft. lbs. Step 2: 75°18 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
115 ft. lbs. Step 2: 22.0 ft. lbs. Step 3: 40°15 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 40°22 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 45°22 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
122.0 ft. lbs., Step 2: 40°22 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
122.0 ft. lbs., Step 2: 45°22 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
122.0 ft. lbs., Step 2: 40°22 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
13.6 ft. lbs. Step 2: 11.03.6 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
13.6 ft. lbs. Step 2: 11.03.6 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
118.0 ft. lbs., Step 2: Hidden 9th bolt by the throttle body that must also be tightened to 18.018 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
115.0 ft. lbs., Step 2: 15.0 ft. lbs., Step 3: 15.015 ft. lbs
Main Bearings — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 120°15 ft. lbs
Main Bearings — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 140°15 ft. lbs
Main Bearings — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 140°15 ft. lbs
Oil Pan to Block Bolts — tightening sequence 1 stages
1Lower oil pan bolts7.4 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 97,500 mi.

Every 7,500 miAccelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Air Filter Element (inspect)
Every 15,000 miWindshield Wiper Blade (replace)
Every 22,500 miCabin Air Filter (replace)
Every 45,000 miEngine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect)
Every 75,000 miHood Hinge (inspect)
Every 97,500 miSpark Plug Wires (inspect) · Spark Plugs (replace)
At 150,000 miAccessory Drive Belt (inspect) · Drive Axle Assembly (drain & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2020 Chevrolet Blazer sits in a period of declining complaints and recalls compared to the peak of the 1990s, where complaints reached 1,418 in 1995. 2020’s 211 complaints and 3 recalls are modest relative to the 2019 figure of 182 complaints and 2 recalls, and it is higher than the 2021 average of 123 complaints and 1 recall. The trend across the generation shows a gradual drop from the 1995 peak to the low single‑digit complaints seen in 2026, indicating improving reliability. In 2020, the top complaint areas—Power Train (30), Unknown Or Other (29), Engine (27), and Electrical System (16)—suggest that drivetrain and engine issues are the most common concerns, while crash and fire complaints remain very low at 5 and 0 respectively. Given the modest complaint volume, the relatively low recall count, and the downward trend, 2020 can be considered a reasonably reliable year to purchase.

3
Open recalls
NHTSA campaigns
851
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
211
Owner complaints
5 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★★
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent
’90’91’92’93’94’95’96’97’98’99’00’01’02’03’04’05’06’07’08’19’20’21’22’23’24’25’26

Owner complaints filed with NHTSA, by component

All 211 complaints on record, top 8 components.

Power Train30
Unknown Or Other29
Engine27
Electrical System16
Power Train,Electrical System10
Steering,Engine7
Steering,Electrical System5
Steering,Electrical System,Engine5

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

21V115000TiresReported 25/02/2021

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020… Remedy: GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at…

20V446000Air Bags:Side/Window:Curtain:InflatorReported 30/07/2020

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser… Remedy: GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at…

Technical service bulletins NHTSA · verified

Showing 5 of 851 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIT3271Q2026-04-01Unknown Or OtherThis preliminary information communicates information about how to determine if a wheel…
PIP61042026-03-09Unknown Or OtherThis Preliminary information communicates the steps on how to save a GDS2 Session Log and…
PIP4902V2026-03-09Unknown Or OtherThis preliminary information advises a dealer on how to email GDS2 session logs into…
PIT6425D2026-03-02Unknown Or OtherThis Preliminary information communicates to the field on how to diagnosis a GPS issue…
PIP5841H2026-02-04Unknown Or OtherThis Preliminary information communicates the potential for condensation to freeze up…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Blazer. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group 94R batteryVehicles taking 5.28 qtEngine oil filter 12693541Engine air filter 23321606Spark plug 12646780Battery 88864542

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 2020 Blazer take?

5.28 qt of DEXOS I* Gen II 0W–20, per the factory manual.

Does the 2020 Blazer have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.