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U.S. public vehicle records

2021 Chevrolet BLAZER problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

130 owner complaints analyzed

1 distinct recall campaigns

35,490 mi median reported failure mileage

Scope: 2021 model year. Data snapshot: . 24 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 39 of 130 complaints (30.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Steering behavior3123.8%
Braking behavior2418.5%
Electrical and battery issues2116.2%
Fuel system concerns1310.0%
Transmission and shifting118.5%
Engine operation75.4%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine
39
Electrical System
37
Unknown Or Other
20
Power Train
18
Service Brakes
18
Fuel/Propulsion System
17
Steering
15
Forward Collision Avoidance: Automatic Emergency Braking
4
Component breakdown data
CategoryCount
Engine39
Electrical System37
Unknown Or Other20
Power Train18
Service Brakes18
Fuel/Propulsion System17
Steering15
Forward Collision Avoidance: Automatic Emergency Braking4

Engine: 39; Electrical System: 37; Unknown Or Other: 20; Power Train: 18; Service Brakes: 18; Fuel/Propulsion System: 17; Steering: 15; Forward Collision Avoidance: Automatic Emergency Braking: 4

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
9
25,000 to 49,999
6
50,000 to 74,999
4
75,000 to 99,999
4
100,000 to 149,999
1
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,0009
25,000 to 49,9996
50,000 to 74,9994
75,000 to 99,9994
100,000 to 149,9991
150,000 and above0

Under 25,000: 9; 25,000 to 49,999: 6; 50,000 to 74,999: 4; 75,000 to 99,999: 4; 100,000 to 149,999: 1; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (9). 106 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2021
11
2022
4
2023
12
2024
14
2025
60
2026
29
Complaints over time data
CategoryCount
202111
20224
202312
202414
202560
202629

2021: 11; 2022: 4; 2023: 12; 2024: 14; 2025: 60; 2026: 29

Pattern summary

Engine leads the component reports. Steering behavior appears in 31 complaint narratives. Braking behavior appears in 24 complaint narratives. Electrical and battery issues appears in 21 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11422911 · 2021-06-30 (June 30, 2021)

Vehicle now has about 1200 and when driving, the instrument cluster panel that digital shows your speed, odometer and other information on my vehicle went blank. It is just a black screen. When this happened, it caused the steering wheel controls for radio volume and turning the station to not work. With this, I have no safety features like lane assist now and can't tell my tire pressure.

Owner-reported narrative. Look up ODI 11422911 at NHTSA ↗

Owner report 11423591 · 2021-07-06 (July 6, 2021)

The contact owns a 2021 Chevrolet Blazer. The contact stated that while stopped at a railroad track, the vehicle independently stopped and went into crash mode while on the railroad tracks upon acceleration. The contact shifted the vehicle into reverse and then into park. Once the vehicle was placed into drive, the vehicle resumed normal operation. The vehicle was taken to a dealer where they replaced an unknown module and performed a software update. Despite the repair, the contact stated that the failure persisted. The contact also stated tha…

Owner-reported narrative. 4,400 miles reported. Look up ODI 11423591 at NHTSA ↗

Owner report 11415195 · 2021-05-04 (May 4, 2021)

OCCASIONAL GRINDING NOISE WHEN BRAKING

Owner-reported narrative. 90 miles reported. Look up ODI 11415195 at NHTSA ↗

Owner report 11416123 · 2021-05-11 (May 11, 2021)

OCCASIONAL GRINDING NOISE WHEN BRAKING' GRINDING NOISE WHEN VEHICLE HAD LESS THAN 400 MILES

Owner-reported narrative. 400 miles reported. Look up ODI 11416123 at NHTSA ↗

Owner report 11488287 · 2022-10-06 (October 6, 2022)

I went out to start my car and the light said that it was not reading the key fob because of low battery. I went and got the other key fob which had never been used and had the same result. The car was towed by Chevrolet to the dealer and it has been there for over 3 weeks. They found that it wasn't a faulty key fob but it was the receiver that gets the signal and allows the door locks to open and the engine to start. I tried moving the shift lever, stepping on the brakes, trying the remote start on the key fob and nothing would start the c…

Owner-reported narrative. Look up ODI 11488287 at NHTSA ↗

Owner report 11557219 · 2023-11-28 (November 28, 2023)

The contact owns a 2021 Chevrolet Blazer. The contact stated that the check engine warning light was illuminated. The contact was unable to use the electrical features in the vehicle. The vehicle was taken to the local dealer, where it was diagnosed that the purge pump needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The approximate failure mileage was 36,000.

Owner-reported narrative. 36,000 miles reported. Look up ODI 11557219 at NHTSA ↗

Owner report 11452993 · 2022-02-19 (February 19, 2022)

I had just purchased my vehicle around December 9 2021. On around Decmeber 16, 2021 around 8 am I was driving on the highway 65 miles an hour. & the vehicle came to a complete stop. It kepts saying my fuel tank was empty. I quickly turned off the vehicle & tried turning it on & it did. I dropped it off at the dealership & it came back it was fuel pump. It was supposibly fixed. Comes January 26 vehicle did the same thing gettinf out of work. I got the vehicle back February 17. & today February 19, 2022 the truck did the same thing.

Owner-reported narrative. Look up ODI 11452993 at NHTSA ↗

Owner report 11525703 · 2023-06-06 (June 6, 2023)

On Friday, April 28, 2023, at about 11:30 am, my car, died as I was driving it out of the grocery store parking lot; luckily, it didn’t happen as I was crossing the busy highway. I attempted several times to restart it, with no luck. There were no warning lamps, messages or other symptoms of this problem. The vehicle was in the middle of an aisle, blocking the aisle and many cars in parking spots, so I managed to get it into neutral and it backed around into parking spaces where the left rear quarter stopped against the front tire of a Ford F…

Owner-reported narrative. Look up ODI 11525703 at NHTSA ↗

Owner report 11405457 · 2021-03-29 (March 29, 2021)

HEADLIGHTS FLASH OR STAY ON EITHER LOW OR HI BEAM,HATCH OPENS ITSELF, AWD POPING, NOISE IN DASH, SHIFTING INTO AWD BY ITSELF, TRANSMISSION NOT SHIFTING CORRECTLY . THERE IS NO PATTERN AND IT THROWS NO CODES. MAJOR ELECTRIC PROBLEMS. THE KEYLESS ENTRY PAD DIDN'T WORK THE DAY I PURCHASED MY CAR. HAD A NEW ONE INSTALLED 3 PROGRAMS AND NOW ALL THIS STARTED.

Owner-reported narrative. Look up ODI 11405457 at NHTSA ↗

Owner report 11435846 · 2021-10-07 (October 7, 2021)

When I am accelerating it seems like my car hesitates to get up to speed, at times feels like it is slipping to get traction. I put my car in AWD and didn't seem to notice the issue, when put back into 2WD, the issue happens, it is not an every time thing, but enough that my husband, who doesn't drive my car a lot noticed it and a coworker who has the same year as mine also has the issue. Of course when I took it into the dealership to have it looked at the car didn't do it, so as far as they are concerned there is nothing wrong with it, whic…

Owner-reported narrative. Look up ODI 11435846 at NHTSA ↗

Owner report 11495782 · 2022-12-02 (December 2, 2022)

The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving approximately 10 MPH and attempting to make a left turn, the vehicle stalled. The contact depressed the accelerator pedal aggressively several times to get the vehicle to start moving again. The failure reoccurred while the contact’s daughter was driving and attempting to make a left turn at a green light when the vehicle stalled. The contact stated that the failure persisted while driving and attempting to turn to the left. The failure occurred intermittently. The …

Owner-reported narrative. 28,000 miles reported. Look up ODI 11495782 at NHTSA ↗

Owner report 11577420 · 2024-03-14 (March 14, 2024)

I was driving on the highway when my car started operating like it was in neutral. RPMs was high but the car started to stall and slow down and because of it I had to immediately pull over. The car would not go into gear. I attempted to put it in drive ajd press the acceleration pedal but it just revved. Same with putting it in reverse. It's a safety concern because my car could not maintain highway speed and abruptly went stagnant. I had the vehicle towed to dealer and they replaced the entire transmission system. The car always had a s…

Owner-reported narrative. Look up ODI 11577420 at NHTSA ↗