2020 Chevrolet Blazer: raw data

Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.

vehicle	2020 / chevrolet / blazer
known issues	5 clusters (reviewed 2026-08-20)
complaints	217 on file (2020-08-07 → 2026-09-14)
recalls	3
investigations	0
fars	28 occupant deaths, crash years 2010-2024 (legacy-code)
indexed	yes
license	CC BY 4.0 (derived)

Known Issues clusters all years →

Thermostat fault triggering steering assist reduced warningSTEERING, ELECTRICAL SYSTEM, ENGINE69 complaints2023-03 → 2026-06blazer-2020-thermostat-steering-assist

11740247 The temperature gauge does not work, it stays at cold. The heater does not work unless the car is moving. AC does not blow cold air at all. I get a message that says “steering assist is reduced. Drive with care”
11742353 Engine temp gauge bottoms out because the thermostat is stuck open, causing the air to stop working. Also a warning that the steering assist is reduced. Eng check light comes on with a code P0208
11665308 The blazer's check engine light came on and I had it scanned. The code was PO128 indicating that the engine coolant temperature is consistently below the thermostat regulating temperature

Transmission slipping and hard shiftingPOWER TRAIN26 complaints2022-06 → 2026-07blazer-2020-transmission-slip-hard-shift

11713817 "I was in extreme danger while traveling with my [XXX] child in the vehicle on the day prior to the total failure
11744816 I am submitting this complaint regarding the transmission in my 2020 Chevrolet Blazer
11662076 The contact owns a 2020 Chevrolet Blazer. The contact stated that the transmission was slipping while driving in the lower gears. The contact stated that the message “Reduced Steering - Drive with Caution” was displayed

Radiator coolant leak requiring replacementENGINE21 complaints2024-01 → 2026-06blazer-2020-radiator-coolant-leak

11696573 2020 Chevrolet Blazer, 19900 miles, lightly driven The radiator seam is leaking coolant, which appears to be a known issue as there are numerous complaints on various websites and forums. The vehicle is now unreliable due to an overheating risk
11655633 I have had to replace the radiator 3 times since I've owned this vehicle. I see where there are others with the same issue. Now I have to replace the thermostat my first radiator was replaced at 16k miles
11740743 The radiator in these cars constantly fails. This can lead to major engine issues. Multiple Chevy owners have reported defects

Oil leak from camshaft carrier or valve cover gasketENGINE6 complaints2023-01 → 2026-03blazer-2020-oil-leak-camshaft-gasket

11710840 I bought this car brand new. 0 miles. I’ve had an oil leak fixed once in it. And now it’s leaking oil again. I have to have it put back in the shop and pay out of pocket once again for now fault of mine. The first time it was leaking from the cam shaft. This is ridiculous
11664003 I have an oil leak and now they are saying both of my camshaft housing gaskets are leaking it's going to take weeks to repair cause it's such a major leak

Shift to Park warning preventing vehicle shutdownELECTRICAL SYSTEM, POWER TRAIN, UNKNOWN OR OTHER44 complaints2022-08 → 2026-05blazer-2020-shift-to-park-warning

11681708 Shifter Assembly and Harness When putting vehicle into "Park" and then shutting off the vehicle a warning message would appear that the car had to be placed into park and a beeper would sound. Never sure if vehicle is actually in park
11672407 I am experiencing the well known "shift to park message" while the shifter is in park. I cannot turn the vehicle off and I am worried the battery will die
11684500 On multiple occasions, my 2020 Chevrolet Blazer RS has failed to recognize when it is shifted into the "Park" gear

NHTSA complaints (summary) all years →

count	earliest_date	latest_date	crash_flagged	fire_flagged	top_components
217	2020-08-07	2026-09-14	5	0	ELECTRICAL SYSTEM:75; POWER TRAIN:72; ENGINE:68; UNKNOWN OR OTHER:56; STEERING:40

Recalls all years →

campaign_number	report_received_date	component	summary	consequence	remedy
21V115000	25/02/2021	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.	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.	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.
20V446000	30/07/2020	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.	If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.	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 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
20V668000	29/10/2020	POWER TRAIN:AUTOMATIC TRANSMISSION	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.	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.	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.

Investigations all years →

none listed

FARS occupant deaths all years →

crash_years	occupant_deaths	match_type	vpic_recovered
2010-2024	28	legacy-code	27

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.

Cite this

Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.

Wrench.Pro (2026). 2020 Chevrolet Blazer vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2020/chevrolet/blazer

@misc{wrenchpro_2020_chevrolet_blazer_2026,
  author = {Wrench.Pro},
  title = {Wrench.Pro vehicle data: 2020 Chevrolet Blazer},
  year = {2026},
  howpublished = {\url{https://www.wrench.pro/data/vehicles/2020/chevrolet/blazer}},
  note = {Derived from NHTSA public records. CC BY 4.0.}
}

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