2020 Chevrolet Blazer Reliability ReportCommon Problems, Repair Costs & Expert Verdict
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Quick Facts · 2020 Chevrolet Blazer
- Has 3 NHTSA recalls on record — the most notable involves the tires.
- Scores 5 points below the strongest nearby year — the 2022 Chevrolet Blazer earns a 83.
- The system most likely to surface first: electrical / infotainment system (moderate severity).
The 2020 Chevrolet Blazer at a glance
- Is the 2020 Chevrolet Blazer reliable?
- Autojunket rates the 2020 Chevrolet Blazer 78/100 (grade C+), categorized as moderate risk. A sharp-looking SUV with solid bones, but prone to a few common GM electrical and accessory frustrations that can impact ownership experience.
- Should I buy a used 2020 Chevrolet Blazer?
- Autojunket recommends reading the full reliability report before buying a 2020 Chevrolet Blazer. The 2020 Chevrolet Blazer is a visually appealing and generally competent mid-size SUV that offers a more engaging driving experience than many in its class. However, its tendency for electrical system glitches and specific component vulnerabilities, particularly with the HVAC and potentially the AWD system, means a…
- Which Chevrolet Blazer years are the most reliable?
- Best model years to buy: 2021+. Years to avoid: Early 2019 production models.
- What are the most common problems with the 2020 Chevrolet Blazer?
- The top failure points on the 2020 Chevrolet Blazer are Electrical / Infotainment System (typically around 15,000-60,000 miles), HVAC System (typically around 40,000-80,000 miles), AWD System (PTU/Rear Differential) (typically around 60,000-100,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
- At what mileage do problems start on the 2020 Chevrolet Blazer?
- The first major mileage danger zone for the 2020 Chevrolet Blazer is around 30,000. Early Check-Up Zone — At this mileage, the vehicle is still relatively new, but it's crucial to ensure all factory software updates for the infotainment and transmission have been applied. Pay attention to any early electrical glitches or unusual shifting beh…
Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.
Read the full free reportShould You Buy the 2020 Chevrolet Blazer?
The 2020 Chevrolet Blazer presents a stylish and engaging option in the mid-size SUV segment, but it's crucial to acknowledge its moderate risk profile. While its core mechanicals are generally robust, owners should anticipate potential frustrations with its complex electrical system and a few specific component weaknesses. Approach a purchase with diligence, especially regarding service history, and be prepared for potential minor to moderate repairs down the line.
The 2020 Chevrolet Blazer is a visually appealing and generally competent mid-size SUV that offers a more engaging driving experience than many in its class. However, its tendency for electrical system glitches and specific component vulnerabilities, particularly with the HVAC and potentially the AWD system, means a…
Best Model Years
2021+
Years to Avoid
Early 2019 production models
Biggest Strengths
- V6 engine and 9-speed transmission generally reliable
- Solid chassis and responsive handling for an SUV
- Modern safety features and infotainment technology
Top Risk Areas
The systems that tend to fail first on the 2020 Chevrolet Blazer, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
Owners frequently report issues such as the infotainment screen freezing, Apple CarPlay/Android Auto connectivity problems, unresponsive touchscreens, and occasional sensor malfunctions (e.g., TPMS, parking assist). These are typically s…
Common complaints include air conditioning condenser leaks, compressor failures, or blend door actuator malfunctions, leading to inadequate cooling or inconsistent temperature control. These issues can be costly and inconvenient, especia…
While not universal, some owners of AWD models have reported issues with the Power Transfer Unit (PTU) or rear differential, manifesting as grinding noises, leaks, or outright failure. This is often linked to neglected fluid changes or m…
2020 Chevrolet Blazer Mileage Danger Zones
The mileage windows when the 2020 Chevrolet Blazer most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Early Check-Up Zone
At this mileage, the vehicle is still relatively new, but it's crucial to ensure all factory software updates for the infotainment and transmission have been applied. Pay attention to any early electrical glitches or unusual shifting beh…
Maintenance & Inspection Zone
This mileage marks a point for more significant maintenance, including transmission fluid checks/changes (especially for AWD models' PTU/rear differential), spark plugs (V6), and a thorough inspection of suspension components and brakes.…
Elevated Risk Zone
Components begin to show more significant wear. Be vigilant for increased oil consumption in 4-cylinder engines, further HVAC issues, and potential electrical gremlins becoming more persistent. The AWD system requires close attention.
High Risk Zone
Beyond this point, major component failures become more likely, including complete AWD unit failures, significant engine issues (timing chain on V6 if neglected, severe oil consumption on 4-cyl), and increased electrical system fatigue.…
2020 Chevrolet Blazer Ownership Cost Outlook
What it typically costs to keep the 2020 Chevrolet Blazer on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$500-700
Moderate Repairs
$600-1,800 occasionally (e.g., HVAC, electrical module, minor AWD repair)
How Long Does the 2020 Chevrolet Blazer Last?
Focus on vehicles with comprehensive service records. If considering an AWD model, ensure the PTU and rear differential fluids have been serviced or budget to do so immediately. For any Blazer over 60,000 miles, factor in potential HVAC system and suspension component replacements.
What 2020 Chevrolet Blazer Owners Actually Say
What Owners Love
- Aggressive, distinctive styling sets it apart from rivals.
- Strong V6 engine performance and responsive handling.
- User-friendly infotainment interface (when working correctly).
- Comfortable front seats and appealing interior design.
Common Frustrations
- Interior quality on lower trims feels less premium than competitors.
- Poor rear visibility due to thick pillars and small rear window.
- Fuel economy, especially with the V6 and AWD, can be disappointing.
- Persistent infotainment glitches and slow responses are frustrating.
Who Should Buy the 2020 Chevrolet Blazer?
Best For
- Style-conscious buyers who want a sportier-looking SUV
- Families needing a versatile daily driver with available AWD
- Urban commuters valuing handling and modern tech
Not Ideal For
- Buyers seeking the absolute lowest long-term maintenance costs
- Individuals prioritizing maximum cargo volume above all else
How the 2020 Chevrolet Blazer Compares to Rivals
The Blazer stands out with its dynamic styling and engaging drive but falls short of Japanese rivals in terms of long-term mechanical bulletproofing. It's a competitive option against other domestic and Korean SUVs, but its electrical and HVAC vulnerabilities pull its overall…
More Reliable Than
- Ford Edge (some transmission issues, interior quality)
- Nissan Murano (CVT reliability concerns)
- Volkswagen Atlas (less refined powertrains, some early reliability issues)
Comparable To
- Hyundai Santa Fe (similar tech glitches, good value)
- Kia Sorento (strong value, decent reliability but some engine issues)
NHTSA Recalls
3 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
TIRES
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.
AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
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 component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
What breaks on the 2020 Chevrolet Blazer?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
Autojunket OSC · OSC Transfer
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Chevrolet Blazer by Year
Compare AutoScores across nearby years of the Chevrolet Blazer. Click any year for its full report.
If You're Considering This, Also Look At
Similar class, similar year range — ranked by AutoScore.
Relevant Products for Your 2020 Chevrolet Blazer
Parts and accessories matched to your 2020 Chevrolet Blazer
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Where the 2020 Chevrolet Blazer report beats Carfax + CR
Carfax tells you if it crashed. Consumer Reports rates the whole nameplate. Autojunket tells you what will actually break on this specific year — and how to negotiate it.
Year-specific reliability score
Common problems + repair costs
Mileage danger zone map
AI negotiation script + walk-away price
Single report price
Frequently Asked Questions
Related Comparisons
Sell your 2020 Chevrolet Blazer for what it's actually worth.
Log every service on your Chevrolet Blazer. When it's time to sell, hand the buyer a signed PDF — every receipt, mileage-verified, close the deal at your price.
- OSC Transfer PDF — every receipt
- Snap-a-receipt AI log
- Fuel & mileage tracker
- Shareable buyer view link
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