Owners have filed 290 complaints
about the 2019 Chevrolet Blazer with NHTSA between 2019 and 2026.
The largest single group is the transmission & drivetrain.
Across this model's run it ranks 17 of 22 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 31
Against the median year of the Chevrolet Blazer. 50 means typical for this
model; 100 means roughly double.
Severity — 14
2.8% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — 100
75% of failures with a mileage on record happened under
36,000 miles, against a national rate of
29%.
How 2019 compares with every other Chevrolet Blazer
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
28.3%
1,000 – 9,999 miles
312.5%
10,000 – 24,999 miles
625.0%
25,000 – 49,999 miles
937.5%
50,000 – 74,999 miles
28.3%
75,000 – 99,999 miles
14.2%
100,000 – 149,999 miles
14.2%
NHTSA crash tests
The agency crash-tested this model year itself. These are its own
photographs and star ratings.
Frontal crash test
Side barrier crash test
Side pole crash test
Photographs taken by NHTSA during its own New Car Assessment Program crash
tests of this model year. Public domain.
Configuration
Overall
Front
Side
Rollover
2019 Chevrolet Blazer SUV FWD
15.5% risk
2019 Chevrolet Blazer SUV AWD
14.7% risk
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Sep 2019peak 24Aug 2026
Recalls on the 2019 Chevrolet Blazer
A complaint is one owner's allegation. A recall is the point at which
the manufacturer or a regulator agreed the defect is real and dangerous
enough to fix for free — however old the car is.
United States — NHTSA
21V115000
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.
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.
20V668000
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.
Risk: 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.
Canada — Transport Canada
Canada runs its own recall programme, and its campaigns do not
always mirror the American ones.
Recall 20211032,360 units in Canada
Tires
Issue: Certain vehicles were built with tires that may have been cured too long. As a result, the sidewall could crack or the tread and belts could separate. This could lead to a sudden loss of air pressure and could cause a tire failure. Note: This recall only affects certain Continental tires, with specific date codes and mold numbers. Safety Risk: A tire failure could cause a loss of control and increase the risk of a crash. Corrective Actions: General Motors will notify the owners by mail and instruct them to take the vehicle to a dealer to inspect and replace the tires, if necessary.
Recall 202052022,911 units in Canada
Powertrain
Issue: On certain vehicles, the start-stop accumulator in the transmission may be missing bolts. As a result, transmission fluid could leak and eventually cause the transmission to stop working. If this happens, there could be a loss of power to the wheels. Safety Risk: A transmission fluid leak onto a hot surface can create the risk of a fire. Additionally, a loss of power to the wheels could increase the risk of a crash. Corrective Actions: General Motors will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the transmission start-stop accumulator. It will be replaced if any bolts are found missing.
Reports where the owner recorded a crash, a fire, an injury or a death.
Lincoln, NECrash
AIR BAGS
i was in a severe accident on 10/6/2025 with a vehicle traveling at approximately 50+mph. My front quarter panel was struck crossing an intersection when a vehicle ran a red light. My vehicle sustained a lot of damage with my head striking the drivers side window --- with no air bags deploying
NHTSA complaint #11691919 — an unverified report by a vehicle owner.
Avon, INCrash
SERVICE BRAKES
Without warning, the brake pedal on my 2019 Chevy Blazer became hard, almost as if the car was turned off. I was unable to stop and slowly rolled into the back of a semi stopped at a stoplight. This was moments after exiting off of a major highway and could have been much worse. The car was taken to a mechanic and it was determined to be a failure with the brake booster. GM has issued recalls for this problem in several other models but the Blazer has been excluded. Based on online forums and complaints of multiple other Blazer owners, it seems obvious that Blazers should have been included in the recall.
NHTSA complaint #11602686 — an unverified report by a vehicle owner.
at 33,000 milesRichmond, KYCrash1 injured
POWER TRAIN
The contact owns a 2019 Chevrolet Blazer. The contact stated that upon driving into a parking space and placing the vehicle into park(P), the vehicle independently accelerated into a building. The air bags deployed upon impact. The contact was treated at the scene by paramedics for minor scrapes and bruises. A police report was filed. The vehicle was towed to an independent collision center for repair. The contact was informed that a couple of bricks on the building were damaged due to the collision. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 33,000.
NHTSA complaint #11477431 — an unverified report by a vehicle owner.
at 33,000 milesRichmond, KYCrash1 injured
ELECTRICAL SYSTEM
The contact owns a 2019 Chevrolet Blazer. The contact stated that upon driving into a parking space and placing the vehicle into park(P), the vehicle independently accelerated into a building. The air bags deployed upon impact. The contact was treated at the scene by paramedics for minor scrapes and bruises. A police report was filed. The vehicle was towed to an independent collision center for repair. The contact was informed that a couple of bricks on the building were damaged due to the collision. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 33,000.
NHTSA complaint #11477431 — an unverified report by a vehicle owner.
at 1,500 milesSAN Antonio, TXCrash1 injured
SERVICE BRAKES
BRAKE FAILURE OCCURRED ON A CITY STREET AT A 3 WAY STOP WHEN APPROACHING A STOP SIGN. BRAKES DID NOT PROVIDE ANY STOPPING POWER AND CAUSED THE VEHICLE TO BLOW THROUGH STOP SIGN AND CAUSED AN ACCIDENT INTO A DRAINAGE DITCH NOT INVOLVING ANY OTHER VEHICLES.
NHTSA complaint #11315810 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Utica, NY
POWER TRAIN
Thermostat went bad at 47,500 miles. Temp gauge stopped working, Engine light came on and alert stating steering assist is reduced
NHTSA complaint #11757806 — an unverified report by a vehicle owner.
Utica, NY
ENGINE
Thermostat went bad at 47,500 miles. Temp gauge stopped working, Engine light came on and alert stating steering assist is reduced
NHTSA complaint #11757806 — an unverified report by a vehicle owner.
Lino Lakes, MN
ELECTRICAL SYSTEM
Shift to park sensor Shift to park warning. It was reported to dealer
NHTSA complaint #11753831 — an unverified report by a vehicle owner.
Chicago, IL
UNKNOWN OR OTHER
1º Transmisión 2º Me quede detenida en una autopista y no podía avanzar por que no respondía a los cambios de velocidad 3º Si 4º Si 5º No
NHTSA complaint #11744461 — an unverified report by a vehicle owner.
Pinckney, MI
UNKNOWN OR OTHER
I was driving into a parking lot when my back passenger side window imploded like a rock was thrown at it, but no rock and nobody in sight. I looked all around for a cause but believe it somehow spontaneous shattered. Thankfully 3 minutes prior I had dropped my kids at school otherwise there would have been injury I am sure.
NHTSA complaint #11740494 — an unverified report by a vehicle owner.
Aberdeen, MD
STEERING
Electronically controlled thermostat and sensor fail or get stuck at a much lower coolant temperature causing the dash to display the “steering assist is reduced drive with care.” It isn’t just a message, the steering is much harder to use potentially causing an accident. The ac completely doesn’t work causing potential for sensitive, elderly, or young children and pets to overheat inside, it’s significant risk of injury or death from the hot summer temperatures. The engine coolant temperature gauge is all the way down on C position which isn’t registering how hot/cold the engine gets potentially causing damage to the vehicle and a total loss of the vehicle entirely due to damage from the engine overheating. GM sent out letters to 2021 blazer owners which included a special coverage number N252508350 applying to people with this year having this problem and they have until 2036 or 150,009 mi to get the repairs made free of charge, they just bring the document with the special repair codes to the dealer and they fix it free of charge. After doing research online, this problem is affecting all years of the 2019+ blazers with the 3.6L V6 engine AND other known problems with other models and years of their other lineup of cars, it’s very widespread across their platforms. So what are people supposed to do when it isn’t the 2021 year? Pay an $800+ repair bill to GM when they KNOW it’s more widespread than just this year/make? This is a scam. I can’t even do the repair myself because I’m having trouble finding the correct parts online and not only that the repair is extensive, the whole top half of the engine needs to be taken apart just to get to the thermostat, we’re talking the airbox and intake manifold, all the plastic parts and shrouds and sensors covering engine, the fuel rail and injectors, pipes and clamps, engine coolant needs drained and refilled. It’s a major fix. I’m reporting this complaint to raise awareness and hopefully GM will do the right thing.
NHTSA complaint #11739939 — an unverified report by a vehicle owner.
Aberdeen, MD
ELECTRICAL SYSTEM
Electronically controlled thermostat and sensor fail or get stuck at a much lower coolant temperature causing the dash to display the “steering assist is reduced drive with care.” It isn’t just a message, the steering is much harder to use potentially causing an accident. The ac completely doesn’t work causing potential for sensitive, elderly, or young children and pets to overheat inside, it’s significant risk of injury or death from the hot summer temperatures. The engine coolant temperature gauge is all the way down on C position which isn’t registering how hot/cold the engine gets potentially causing damage to the vehicle and a total loss of the vehicle entirely due to damage from the engine overheating. GM sent out letters to 2021 blazer owners which included a special coverage number N252508350 applying to people with this year having this problem and they have until 2036 or 150,009 mi to get the repairs made free of charge, they just bring the document with the special repair codes to the dealer and they fix it free of charge. After doing research online, this problem is affecting all years of the 2019+ blazers with the 3.6L V6 engine AND other known problems with other models and years of their other lineup of cars, it’s very widespread across their platforms. So what are people supposed to do when it isn’t the 2021 year? Pay an $800+ repair bill to GM when they KNOW it’s more widespread than just this year/make? This is a scam. I can’t even do the repair myself because I’m having trouble finding the correct parts online and not only that the repair is extensive, the whole top half of the engine needs to be taken apart just to get to the thermostat, we’re talking the airbox and intake manifold, all the plastic parts and shrouds and sensors covering engine, the fuel rail and injectors, pipes and clamps, engine coolant needs drained and refilled. It’s a major fix. I’m reporting this complaint to raise awareness and hopefully GM will do the right thing.
NHTSA complaint #11739939 — an unverified report by a vehicle owner.
Aberdeen, MD
ENGINE
Electronically controlled thermostat and sensor fail or get stuck at a much lower coolant temperature causing the dash to display the “steering assist is reduced drive with care.” It isn’t just a message, the steering is much harder to use potentially causing an accident. The ac completely doesn’t work causing potential for sensitive, elderly, or young children and pets to overheat inside, it’s significant risk of injury or death from the hot summer temperatures. The engine coolant temperature gauge is all the way down on C position which isn’t registering how hot/cold the engine gets potentially causing damage to the vehicle and a total loss of the vehicle entirely due to damage from the engine overheating. GM sent out letters to 2021 blazer owners which included a special coverage number N252508350 applying to people with this year having this problem and they have until 2036 or 150,009 mi to get the repairs made free of charge, they just bring the document with the special repair codes to the dealer and they fix it free of charge. After doing research online, this problem is affecting all years of the 2019+ blazers with the 3.6L V6 engine AND other known problems with other models and years of their other lineup of cars, it’s very widespread across their platforms. So what are people supposed to do when it isn’t the 2021 year? Pay an $800+ repair bill to GM when they KNOW it’s more widespread than just this year/make? This is a scam. I can’t even do the repair myself because I’m having trouble finding the correct parts online and not only that the repair is extensive, the whole top half of the engine needs to be taken apart just to get to the thermostat, we’re talking the airbox and intake manifold, all the plastic parts and shrouds and sensors covering engine, the fuel rail and injectors, pipes and clamps, engine coolant needs drained and refilled. It’s a major fix. I’m reporting this complaint to raise awareness and hopefully GM will do the right thing.
NHTSA complaint #11739939 — an unverified report by a vehicle owner.
Splendora, TX
STEERING
Power steering goes out intermittently while driving.
NHTSA complaint #11734804 — an unverified report by a vehicle owner.
Virginia Beach, VA
VEHICLE SPEED CONTROL
The transmission or torque converter has slippage and shuddering that has caused one or both to go bad. My safety was at risk due to this item beginning to fail to cause the inability to accelerate to maintain my position in traffic. The problem was recreated for the service technician. There was no warning or indication before this became an issue.
NHTSA complaint #11734708 — an unverified report by a vehicle owner.
Detroit, MI
UNKNOWN OR OTHER
My vehicle is breaking on its own. There are other vehicles riding behind me and it just stops out of nowhere. I think that's dangerous. I can be driving and I'm thinking I'm OK driving in a vehicle. Just just hit on break. I don't know where I just stops and while I'm driving and I think that's very dangerous
NHTSA complaint #11733343 — an unverified report by a vehicle owner.
Detroit, MI
FORWARD COLLISION AVOIDANCE: WARNINGS
My vehicle is breaking on its own. There are other vehicles riding behind me and it just stops out of nowhere. I think that's dangerous. I can be driving and I'm thinking I'm OK driving in a vehicle. Just just hit on break. I don't know where I just stops and while I'm driving and I think that's very dangerous
NHTSA complaint #11733343 — an unverified report by a vehicle owner.
My vehicle is breaking on its own. There are other vehicles riding behind me and it just stops out of nowhere. I think that's dangerous. I can be driving and I'm thinking I'm OK driving in a vehicle. Just just hit on break. I don't know where I just stops and while I'm driving and I think that's very dangerous
NHTSA complaint #11733343 — an unverified report by a vehicle owner.
Lake Winnebago, MO
UNKNOWN OR OTHER
The vehicle will not shut off when you shift to park. You are forced to sit in the vehicle for extended periods of time attempting to get the vehicle turned off. Apparently Chevy is familiar with eat problem and there are pending class action law suits in Ohio. According to the dealership Chevy has acknowledged there is a defect but no recall has been issued. We have had this issue for about two months and it is getting worse.
NHTSA complaint #11730819 — an unverified report by a vehicle owner.
Lake Winnebago, MO
ENGINE
The vehicle will not shut off when you shift to park. You are forced to sit in the vehicle for extended periods of time attempting to get the vehicle turned off. Apparently Chevy is familiar with eat problem and there are pending class action law suits in Ohio. According to the dealership Chevy has acknowledged there is a defect but no recall has been issued. We have had this issue for about two months and it is getting worse.
NHTSA complaint #11730819 — an unverified report by a vehicle owner.
Iuka, MS
POWER TRAIN
Shift to Park issue: Known issue where the car fails to recognize it is in Park, preventing it from shutting off. Electronics: Potential blanked-out display screens, USB port issues, and malfunctioning cameras. Steering Assist: Restricted, temperature gauge goes to cold and radiator fan blows hard. I have to unplug negative cable to battery and reconnect and everything goes back to normal.
NHTSA complaint #11729329 — an unverified report by a vehicle owner.
Iuka, MS
STEERING
Shift to Park issue: Known issue where the car fails to recognize it is in Park, preventing it from shutting off. Electronics: Potential blanked-out display screens, USB port issues, and malfunctioning cameras. Steering Assist: Restricted, temperature gauge goes to cold and radiator fan blows hard. I have to unplug negative cable to battery and reconnect and everything goes back to normal.
NHTSA complaint #11729329 — an unverified report by a vehicle owner.
Iuka, MS
ELECTRICAL SYSTEM
Shift to Park issue: Known issue where the car fails to recognize it is in Park, preventing it from shutting off. Electronics: Potential blanked-out display screens, USB port issues, and malfunctioning cameras. Steering Assist: Restricted, temperature gauge goes to cold and radiator fan blows hard. I have to unplug negative cable to battery and reconnect and everything goes back to normal.
NHTSA complaint #11729329 — an unverified report by a vehicle owner.
Elk River, MN
UNKNOWN OR OTHER
2019 Chevy Blazer. Car would not turn off the electrical components when parked. Put car in park and walked away and there is a warning note that says, "Shift to Park." But the car was in park. Called Chevy and they know about the issue on the 2019-2023 vehicles. They sent me the Technical Service Bulletin. Back in 2020, the car had the shifting harness and button replaced and we just had to have it replaced again because it is a consistent issue with the vehicle. Except this time, the dealer charged us $668.40 to fix it! It is a known issue by the company and THEY sent me the service bulletin to get it fixed. It should have been covered by Chevy, or, at least a recall should be instituted. The power to the car wouldn't shut off. We were able to jump the car to get it started again.
NHTSA complaint #11726346 — an unverified report by a vehicle owner.
Elk River, MN
ELECTRICAL SYSTEM
2019 Chevy Blazer. Car would not turn off the electrical components when parked. Put car in park and walked away and there is a warning note that says, "Shift to Park." But the car was in park. Called Chevy and they know about the issue on the 2019-2023 vehicles. They sent me the Technical Service Bulletin. Back in 2020, the car had the shifting harness and button replaced and we just had to have it replaced again because it is a consistent issue with the vehicle. Except this time, the dealer charged us $668.40 to fix it! It is a known issue by the company and THEY sent me the service bulletin to get it fixed. It should have been covered by Chevy, or, at least a recall should be instituted. The power to the car wouldn't shut off. We were able to jump the car to get it started again.
NHTSA complaint #11726346 — an unverified report by a vehicle owner.
Fayetteville, NC
UNKNOWN OR OTHER
I believe my thermostat is a problem. I keep getting "P012B" "coolant under operating temperature" codes on my obd2 meter. This seems to coincide with "driver assist reduced" on my instrument cluster on my dash board. I researched it and on a forum it sounds to be a very common problem. Someone said to report it on here. I can clear the "p012b" error code with my obd2 and my thermostat instantly becomes responsive however it comes back within 2 days or so.
NHTSA complaint #11724737 — an unverified report by a vehicle owner.
New Lenox, IL
ENGINE
Faulty thermostat. Check engine light comes on due to thermostat getting stuck open and needing to be replaced. This is terrible for the engine and the environment.
NHTSA complaint #11720293 — an unverified report by a vehicle owner.
Nashville, TN
POWER TRAIN
P0128 code. Coolant temperature sensor and thermostat failure.
NHTSA complaint #11718805 — an unverified report by a vehicle owner.
Kingwood, TX
POWER TRAIN
The shift-to-park sensor in my 2019 Chevy Blazer RS is malfunctioning. After shifting into park, the vehicle does not detect that it is in park and displays a “Shift to Park” message. The issue is/has been ongoing and now it is almost impossible to bypass with wiggling the shifter. Safety Risk: The vehicle cannot be fully shut off or locked, increasing the risk of battery drain or unintended movement. This poses a safety risk if the vehicle is left in public or on an incline. Inspection History: The vehicle was taken in to the dealership in November/December 2025 due to MULTIPLE Warning Lights: “Shift to Park”, "Steering Assist", "Stabilink" and the usb-C charging port under the radio screen will stop working all together when this happens as well. This started around September 2025 and has occurred regularly since.
NHTSA complaint #11716876 — an unverified report by a vehicle owner.
Riverview, FL
STEERING
Thermostat Housing Replacement + Dexcool: P0128, thermostat stuck. Was told this can cause engine to overheat.
NHTSA complaint #11716857 — an unverified report by a vehicle owner.
