Model-year warranty research

Is an Extended Warranty Worth It for a 2020 Chevrolet Blazer?

Review estimated repair costs, owner complaints, recalls and manufacturer communications for this model year. The records describe submitted cases; they do not tell you how likely a failure is.

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221complaint reports

3recall campaigns

853manufacturer communications

6leading reported component tags

2020 Chevrolet Blazer: submitted complaint records, vehicle recall campaigns and available complaint component tags. Counts are not failure rates. — Published source snapshot. Check the record scope below before applying these counts to your vehicle.

Source: NHTSA vehicle records, recall and complaint snapshot 2026-10-18. Manufacturer communications retain their separately dated source snapshot. Counts are submitted records, not failure probabilities. One vehicle can appear in several campaigns.

Complaint model names counted: BLAZER. Recall model names counted: BLAZER. Complaint records are deduplicated by ODI number; vehicle recalls are counted by distinct campaign number for this year.

Model-year records

What the 2020 record can and cannot say

The 2020 record contains 221 submitted complaints. The median across this model's matched years is 52 reports. Neither number accounts for vehicle sales or time on the road. Source names: BLAZER. NHTSA source snapshot: 2026-10-18.

Electrical System is the most common displayed component tag, with 76 reports (34.4% of this year's submitted complaints). One complaint can name several components. The share describes reports, not the probability of a failure.

Engine replacement or major internal repair has the highest arithmetic midpoint for parts in the applicable planning estimates, at $8,000 before labor. A paid plan can help only if the component and cause qualify; check existing manufacturer coverage first.

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Problem research and repair guidance

2020 Chevrolet Blazer: symptoms, affected vehicles and documented fixes

Match the symptom and the exact vehicle scope before arranging work. The imported catalogue is an editorial index of source documents, not an independent safety authority. Recall text is checked against NHTSA; each record links to the evidence that supports its scope and remedy.

1documented issue file

1vehicle system

1 recall file · 0 other manufacturer files. These are editorial file counts, not distinct campaign totals, failure rates or a complete recall history.

POWER TRAIN

Official safety recall2019, 2020Campaign 20V668000

POWER TRAIN:AUTOMATIC TRANSMISSION: recall 20V668000

Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.

Condition in the official record

Which vehicles the source covers

NHTSA model names: BLAZER. Model years: 2019, 2020.
NHTSA campaign 20V668000
The complete campaign lists 194,105 potentially affected units across all listed vehicles.
A make, model and year match does not establish VIN eligibility.

Safety recall eligibility is based on the VIN and campaign scope, not ordinary warranty mileage. Check the complete VIN even when the vehicle is outside its original warranty.

Component in the source: POWER TRAIN:AUTOMATIC TRANSMISSION

Published recall remedy

GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. 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 N202313440.

Consequence in the NHTSA record: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.

Official recall remedyManufacturer or authorized dealer · Confirm with the dealer

Limit: Confirm VIN eligibility and current remedy instructions with the manufacturer.

Check the complete VINVIN lookup · Before arranging repairs

Check the 17-character VIN at NHTSA.gov/recalls and ask the manufacturer whether this campaign remains open for the vehicle.

Limit: The model-year list is not proof that an individual vehicle is affected.

Evidence for this issue

20V668000: NHTSA campaign 20V668000
NHTSA safety recall · 2020-10-29
Official component, defect, consequence and remedy; checked 2026-10-18.

Open this problem file →

Source review: 2026-10-18

Confirm who pays before authorizing work

A recall remedy follows the campaign and VIN eligibility. A service bulletin provides diagnosis or repair instructions; it does not by itself promise payment. Manufacturer warranty extensions and support programs have their own conditions.

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Keep a current problem separate from future coverage

These files do not supply a shop quote. Ask for a diagnosis and written estimate, then check recall remedies or existing coverage. A new vehicle service contract generally excludes pre-existing conditions.

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Each file retains its original source review date. Historical remedy wording can change; check the current manufacturer notice and NHTSA VIN lookup for your vehicle. The separately dated NHTSA counts elsewhere on this page use a different dataset and scope.

Read the evidence for this vehicle

What can the data tell you about 2020 Chevrolet Blazer?

No model-specific individual-repair price keys are retained for Chevrolet Blazer in this library. Generic parts and labor estimates, public records and separate annual cost references may still be available.

Individual-repair price scopeGeneric inputs

Model-level range presence is a source-coverage check. It does not confirm that a repair fits every engine or model year.

EPA configuration match5 source rows

This model year can include different equipment. Use the VIN and original specifications to identify the actual configuration.

Documented repair pathsCheck the source

Recall and communication counts describe records. They cannot establish a breakdown probability or current VIN status.

Price-key audit reviewed October 18, 2026; EPA source snapshot 2026-08-07. Individual-repair ranges and annual repair-budget references are different datasets.

Cost-library audit

The evidence behind a repair estimate

30 of 44 repair categories have verified national benchmarks; 14 retain planning assumptions. Old model-specific ranges were removed because this refresh did not reverify them.

44 repair categories; a content audit, not a market survey

See the analysis, charts and method →

Campaign-reference audit

One campaign can create many entries

1,200 selected recall files resolve to 780 distinct campaign IDs after compact references are normalized and checked against official NHTSA records. Files and campaigns are different counting units.

1200 selected recall files; normalized references checked against official NHTSA records

See the analysis, charts and method →

Complaint model names counted: BLAZER. Recall model names counted: BLAZER. Complaint records are deduplicated by ODI number; vehicle recalls are counted by distinct campaign number for this year.

Sources and methods

What each source tells you

NHTSA records: 221 submitted complaints, 3 recalls and 853 manufacturer communications. These are report counts, not failure probabilities.

EPA vehicle details: 5 matched fuel-economy configurations help us leave out repairs for equipment this model year does not have.

Repair-cost estimates: We model 32 applicable repairs beyond normal wear items, using published benchmarks where available plus parts and independent-shop labor assumptions. These ranges are not dealer quotes, repair-shop quotes or invoices.

Read the full research and repair-cost methodology.

Vehicle configuration

2020 EPA specification range

The official dataset contains 5 matched configurations for this model year. The range reflects trim and drivetrain choices, not changes to the complaint count.

Vehicle classSmall SUV

Fuel choicesGasoline

Drive layoutsAll-wheel drive and Front-wheel drive

Engine range2 to 3.6 L; 4 to 6 cylinders

EPA efficiency21 to 24 mpg

Transmission typesAutomatic

EPA figures vary by configuration. Confirm the exact engine, drive layout and fuel system from the VIN or original window sticker. Source: FuelEconomy.gov vehicle data, updated 2026-08-07.

Estimated repair bills

Major repair cost range

These ranges combine parts and labor benchmarks with modeled independent-shop rates for 50-metro reference. These are national repair benchmarks and planning assumptions, not published prices for this exact vehicle. We filter repairs using the available model-year specifications; a shop must confirm the engine, equipment and diagnosed job.

Repair	System	Estimated range
Engine replacement or major internal repair	Engine	$6,095 to $16,964
Transmission replacement	Transmission	$6,079 to $6,995
Transfer case replacement	Driveline	$2,189 to $8,192
Turbocharger replacement	Turbo and Supercharger	$1,662 to $6,524
Head gasket replacement	Engine	$2,339 to $3,728
Strut and control arm repair	Suspension	$1,053 to $4,545
Fuel injector set replacement	Fuel System	$908 to $4,651
Infotainment display or head unit replacement	Electrical and Electronic	$722 to $4,467
Timing chain replacement	Engine	$1,934 to $3,038
Steering rack replacement	Steering	$2,232 to $2,681

Affiliate partner · Chaiz marketplace

Compare live coverage prices for a 2020 Chevrolet Blazer

Use these repair estimates and records to check which coverage matters for your car. Then compare plan prices, deductibles and covered repairs on Chaiz.

An extended car warranty sold separately is a vehicle service contract. It costs extra and has its own coverage limits, exclusions and cancellation terms. A factory warranty comes with a new vehicle. FTC explanation.

Compare plan costs with repair costs

$6,095-$16,964 largest modeled range shownEstimated repair cost, not a shop quote or a prediction.

Planning ahead: confirm coverage for the systems you want covered and the cause of failure. Read the contract checklist.

Already have a problem? Check recalls and manufacturer information first. A new service contract excludes pre-existing problems.

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We receive a referral fee from Chaiz for successful referrals. This does not affect your price or either company's editorial policy. How we are paid.Pre-existing problems are excluded. Purchases through Chaiz are unavailable to California residents. California options.

Terms and sources

Chaiz says most providers require both 30 days and 1,000 miles before claims are eligible, with some exceptions. Check the contract's start date, exclusions, cancellation and refund terms. Chaiz is a marketplace; the contract provider handles claims.State information · Waiting period and exclusions · State availability. Checked October 18, 2026.

Compare years

Other Chevrolet Blazer model years

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