When General Motors brought back the Blazer nameplate as a stylish crossover, buyers expected a blend of Camaro-inspired styling and everyday utility. If you're looking at a used model, you want to know if the 2020 Chevrolet Blazer reliability holds up over time. The short answer is that it's a mixed bag. While J.D. Power awarded the 2020 model high marks for initial quality and driving experience, long-term owner forums and technical service bulletins highlight distinct trouble spots—particularly with transmission components and electrical accessories.
Evaluating this midsize SUV requires looking beyond showroom appeal. We'll break down common mechanical faults, engine choices, recall histories, and what you can expect if you buy one today.
Powertrain Options and Performance Impact
The 2020 Blazer came with three distinct engine choices, and your reliability experience often depends heavily on which powerplant is under the hood.
- 2.5-Liter Four-Cylinder: Found in base models, this naturally aspirated engine outputs 193 horsepower. It's underpowered for a vehicle of this size, which means it works harder during everyday acceleration, putting extra stress on internal components.
- 2.0-Liter Turbocharged Four-Cylinder: Introduced to mid-tier trims, this engine balances pep and efficiency with 230 horsepower. It offers a healthier torque curve without straining the chassis.
- 3.6-Liter V6: Generating 308 horsepower, this is the most popular engine for towing and highway passing. While generally robust, it demands strict adherence to oil change intervals to protect timing components.
All three engines pair with a nine-speed automatic transmission. Unfortunately, this transmission is the source of the model's most frequent mechanical complaints.
Common Reliability Concerns and Mechanical Issues
While many owners report trouble-free ownership, a subset of drivers experience recurring headaches. Knowing these weak points helps you inspect a used model thoroughly.
Transmission and Shifter Glitches
The nine-speed automatic transmission has2020 Chevrolet Blazer Reliability: Common Issues and Owner Verdict
Automotive
When Chevrolet revived the Blazer nameplate for the 2020 model year, it traded its rugged, truck-based heritage for a sleek, aggressive crossover design inspired by the Camaro. Buyers loved the sharp styling and engaging driving dynamics, but a lingering question remains for used car shoppers: is the 2020 Chevrolet Blazer reliable?
The short answer is that the 2020 Chevrolet Blazer offers mixed reliability scores. While major powertrain components generally hold up well, the vehicle has faced notable complaints regarding electrical glitches, transmission shifting hesitation, and accessory failures. Industry data from sources like J.D. Power shows average predicted reliability scores for this model year, meaning it requires a closer look at specific engine choices and maintenance records before you buy.
Understanding the 2020 Chevrolet Blazer Lineup
To evaluate reliability, you must look at the mechanical configurations under the skin. The 2020 Blazer came with three distinct engine options, each paired with a nine-speed automatic transmission. Front-wheel drive is standard on lower trims, while all-wheel drive is available or standard on higher trims.
The base engine is a 2.5-liter four-cylinder producing 193 horsepower. It is strictly front-wheel drive and features an automatic stop-start system that some owners find intrusive. Mid-range and sporty trims feature a 2.0-liter turbocharged four-cylinder engine making 230 horsepower, offering a punchier mid-range power delivery. At the top of the lineup sits the 3.6-liter V6 engine, churning out 308 horsepower and providing a maximum towing capacity of up to 4,500 pounds when properly equipped.
Common Reliability Concerns and Owner Complaints
While catastrophic engine failures are rare across all three powerplants, the 2020 Blazer has accumulated specific trouble spots that prospective buyers should check during a pre-purchase inspection.
Transmission Performance and Shifting
The nine-speed automatic transmission used across the Blazer lineup has been a focal point for owner complaints. Many drivers report rough shifting, particularly in stop-and-go city traffic, where the transmission can hesitate or hunt for the correct gear at low speeds. While software updates from Chevrolet dealerships often resolve minor calibration issues, mechanical wear on earlier build dates can lead to harsher gear engagement. If you test drive a used 2020 model, pay close attention to how smoothly it transitions between gears two through four.
Electrical and Infotainment Glitches
Modern crossovers rely heavily on complex electrical architectures, and the 2020 Blazer is no exception. Owners frequently report issues with the touchscreen infotainment system freezing, losing Bluetooth connection, or failing to activate the backup camera. More concerningly, some drivers have experienced battery drain issues caused by modules failing to "go to sleep" when the vehicle is parked. Checking the vehicle history report for any recurring electrical warranty claims is a smart precaution.
Suspension and Steering Components
Given the Blazer's sporty suspension tuning, front suspension components endure significant stress. Reports of premature wear on control arm bushings, strut mounts, and wheel bearings have surfaced among high-mileage examples. If you hear clunking noises when turning over bumps or notice uneven tire wear, the suspension likely requires attention.
Comparing Engine Reliability
Choosing the right engine significantly impacts your long-term ownership experience.
The base 2.5-liter engine is mechanically simple and avoids the potential turbocharger complications of the 2.0-liter variant. However, it feels underpowered for a vehicle of this size, which can lead to higher wear as drivers constantly push the throttle harder to maintain highway speeds.
The 2.0-liter turbo strikes a balance between efficiency and power, but turbocharged engines demand strict adherence to oil change intervals. Neglected oil changes can lead to carbon buildup or premature turbocharger wear.
The 3.6-liter V6 is generally regarded as the most robust choice for longevity, provided the cooling system and oil levels are meticulously maintained. It handles highway passing and towing with ease, placing less stress on the mechanical components over time. You can learn more about vehicle evaluation standards through the National Highway Traffic Safety Administration.
Routine Maintenance to Prevent Issues
Preventative maintenance dictates whether a used Blazer will last or become a financial headache. Following the manufacturer schedule is mandatory.
- Fluid Flushes: Change the transmission fluid every 45,000 to 50,000 miles, especially given the complex nature of the nine-speed unit.
- Oil Changes: Stick to high-grade synthetic oil every 5,000 to 7,500 miles to protect internal engine components and turbochargers.
- Battery Health: Test the 12-volt battery annually, as weak batteries trigger erratic behavior in the Blazer's onboard computers.
- Brake Inspection: Due to the vehicle's curb weight, inspect brake pads and rotors regularly to prevent scoring.
Frequently Asked Questions
Does the 2020 Chevrolet Blazer hold its value well?
Depreciation on the Blazer has been fairly standard for American midsize crossovers. Because supply and demand fluctuate in the used car market, pricing depends heavily on local inventory, mileage, and vehicle condition.
Is the V6 engine better than the four-cylinder options?
For reliability and towing capability, the V6 is widely preferred by owners and mechanics. It delivers smooth power without pushing a small displacement engine to its limits.
What should I check during a test drive?
Listen closely for transmission shifting delays, test all infotainment features multiple times, check for steering wheel vibrations at highway speeds, and ensure the air conditioning blows cold across all zones.
Are repair parts expensive for this vehicle?
Because Chevrolet parts are widely available through general automotive suppliers and dealerships, routine maintenance and common repairs remain reasonably priced compared to luxury European imports.
