Is the 2020 Chevrolet BLAZER reliable?

The 2020 Chevrolet BLAZER has 341 complaints filed with NHTSA (5.2x the segment average). Our reliability verdict: avoid. Most common issue: TRANSMISSION problems.

What are common problems with the 2020 Chevrolet BLAZER?

Top problems: TRANSMISSION (70 complaints, avg repair $500); ELECTRICAL (69 complaints, avg repair $500); ENGINE (68 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2020 Chevrolet BLAZER?

Yes, there are 3 recall(s): TIRES, AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR, POWER TRAIN:AUTOMATIC TRANSMISSION. Contact any Chevrolet dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2020 Chevrolet BLAZER?

The 2020 Chevrolet BLAZER gets 22 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2182. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2020 Chevrolet BLAZER?

Estimated US average full-coverage insurance for the 2020 Chevrolet BLAZER is approximately $1,652/year (suv-midsize class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2020 Chevrolet BLAZER

Problems, Recalls & Reliability Report

Avoid This Year

Quick Summary

The 2020 Chevrolet BLAZER has 341 owner complaints filed with NHTSA — that's 5.2x the segment average of 66. The most common issue is transmission problems (21% of all complaints), specifically: with approximately 1500 miles on the vehicle, the blazer's automatic transmission failed while driving. i was stopped at a red light. when the light turned green, i proceeded slowly through the intersection in a left turn. as soon as i left the intersection, just as the vehicle would typically up-sh. There are 3 recalls issued for this model year.

3 crash reports 8 injuries

341

Total Complaints

Recalls Issued

5/5

Safety Stars

5.2x

vs Segment Avg

Known Problems(top 5 of 8)

TRANSMISSION

70 complaints

21%

• WITH APPROXIMATELY 1500 MILES ON THE VEHICLE, THE BLAZER'S AUTOMATIC TRANSMISSION FAILED WHILE DRIVING. I WAS STOPPED AT A RED LIGHT. WHEN THE LIGHT TURNED GREEN, I PROCEEDED SLOWLY THROUGH THE INTERSECTION IN A LEFT TURN. AS SOON AS I LEFT THE INTERSECTION, JUST AS THE VEHICLE WOULD TYPICALLY UP-SH
• The contact owns a 2020 Chevrolet Blazer. The contact stated that after driving into the garage, the engine was turned off but the transmission was left in the drive position. The contact mentioned that the brake was intended to engage in order for the vehicle not to move forward or backward. After
• Shift to park displays despite being in park. I cannot turn off the car or lock the doors.

Typical onset: 50K miles Est. repair: $500

“WITH APPROXIMATELY 1500 MILES ON THE VEHICLE, THE BLAZER'S AUTOMATIC TRANSMISSION FAILED WHILE DRIVING. I WAS STOPPED AT A RED LIGHT. WHEN THE LIGHT TURNED GREEN, I PROCEEDED SLOWLY THROUGH THE INTERSECTION IN A LEFT TURN. AS SOON AS I LEFT THE INTERSECTION, JUST AS THE VEHICLE WOULD TYPICALLY UP-SH”

— NHTSA complaint filing

When Problems Appear on the 2020 Chevrolet BLAZER

Based on 48 owner complaints that included an odometer reading. Median mileage at time of complaint: 45K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

ELECTRICAL

In line with typicalmedian 38K mi · 9 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

ENGINE

In line with typicalmedian 54K mi · 7 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

STEERING

In line with typicalmedian 9K mi · 5 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

TRANSMISSION

Later than typicalmedian 50K mi · 16 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (3)

TIRES25/02/2021

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 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.

Risk: Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.

Fix: 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 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.

Fuel Cost Calculator for 2020 Chevrolet BLAZER

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,182

Per month

$182

Per mile

18.2¢

MPG

City driving (worst-case MPG)

$2,667/yr

Highway driving (best-case MPG)

$1,778/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2020 Chevrolet BLAZER

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,652

Full coverage / month

$138

Liability only / year

$600

vs US avg

-1%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (suv-midsize)1.05x

× theft risk1.00x

× safety rating0.94x

× vehicle age1.00x

= Full coverage estimate$1652

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Chevrolet BLAZER Service Intervals

Oil change

8K mi / 12 mo

Tire rotation

8K mi

Brake fluid

36 months

Transmission fluid

45K mi

Engine coolant

150K mi

Spark plugs

100K mi

Cabin air filter

23K mi

Engine air filter

45K mi

Differential (AWD/4WD)

45K mi

GM Oil Life System dynamically calculates oil change interval. DEXOS-approved oil required.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Chevrolet New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

3 yr / 36K mi

Powertrain

5 yr / 60K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

6 yr / 100K mi

Roadside assistance

5 yr / 60K mi

These are the terms for a new Chevrolet. If you're buying a used 2020 BLAZER, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Chevrolet dealer for VIN-specific remaining warranty.

Estimated Repair Costs

TRANSMISSION(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

ENGINE(~50K mi)

$500

OTHER(~50K mi)

$500

STEERING(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 341 owner complaints for this specific year, here's what to check or ask about:

☐
TRANSMISSION: WITH APPROXIMATELY 1500 MILES ON THE VEHICLE, THE BLAZER'S AUTOMATIC TRANSMISSION FAILED WHILE DRIVING. I WAS STOPPED AT A RED LIGHT. WHEN THE LIGHT TURNED GREEN, I PROCEEDED SLOWLY THROUGH THE INTERSECTION IN A LEFT TURN. AS SOON AS I LEFT THE INTERSECTION, JUST AS THE VEHICLE WOULD TYPICALLY UP-SH
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: TWICE WHILE I HAVE BEEN DRIVING THE INSTRUMENT PANEL WENT BLANK. IN MOTION.
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: IN 2 OCCASIONS MY VEHICLE CAME TO A COMPLETE STOP AND TURNED OFF ON ME. I WAS THINKING IT WAS A SAFETY FEATURE BUT AFTER THE 2ND TIME I WAS CONCERNED. TOOK IT TO DEALERSHIP AND THEY FOUND NOTHING WRONG WITH IT. ON ANOTHER OCCASION I WAS LEAVING MY HOUSE WHEN MY STEERING WHEEL GOT SUPER HARD AND MADE
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: My retractable sunroof suddenly explosively broke. I was approaching a red stop light at low speed. I heard what I thought was a gunshot or vehicle backfiring. As I drove on, I heard wind whistling. I thought my passenger side window wasn’t closed. I lowered then jraised it. At that point, I heard m
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 3 recalls have been completed — free at any Chevrolet dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)