2019 Chevrolet Blazer Safety Report
2019 CHEVROLET BLAZER Safety Report
Safety Decision Cockpit for the 2019 Chevrolet Blazer
This page is the hub for deciding what to inspect next on the 2019 Chevrolet Blazer. It connects recall campaigns, owner complaint patterns, service bulletins, sibling model years, component issue hubs, and the model buying guide so a shopper or owner can move from a single report into the wider safety graph.
| Signal | Value | What to inspect next |
|---|---|---|
| Recall burden | Moderate (2) | Review campaign numbers, affected components, and dealer remedies below. |
| Owner complaints | High (174) | Scan complaint narratives for recurring symptoms, mileage, crashes, fires, injuries, and dates. |
| Crash and fire reports | 4 | Treat any crash, fire, injury, or fatality-linked pattern as a priority pre-purchase inspection item. |
| Primary component hub | Unknown Or Other | Compare unknown or other issues across vehicles. |
| Cleaner nearby model year | 2025 | Compare against the 2025 Chevrolet Blazer with 20 complaints and 1 recalls. |
| Riskier nearby model year | 2020 | Check the 2020 Chevrolet Blazer before buying across this generation. |
Chevrolet Blazer Year-by-Year Comparison
The safest purchase decision usually comes from comparing neighboring model years, not reading a single page in isolation. The table below uses only validated Chevrolet Blazer years already present in the cleaned NHTSA dataset, so each comparison links to a real vehicle safety report rather than a generated combination.
| Model Year | Complaints | Recalls | Use case |
|---|---|---|---|
| 2020 Chevrolet Blazer | 182 | 3 | Inspect as a potentially higher-complaint year. |
| 2021 Chevrolet Blazer | 109 | 1 | Compare as a potentially cleaner alternative. |
| 2022 Chevrolet Blazer | 34 | 1 | Compare as a potentially cleaner alternative. |
| 2023 Chevrolet Blazer | 31 | 2 | Compare as a potentially cleaner alternative. |
| 2024 Chevrolet Blazer | 32 | 1 | Compare as a potentially cleaner alternative. |
| 2025 Chevrolet Blazer | 20 | 1 | Compare as a potentially cleaner alternative. |
2019 Chevrolet Blazer Complaint Theme Map
Complaint counts become more useful when they are grouped into inspection themes. For the 2019 Chevrolet Blazer, these are the component areas with the clearest NHTSA complaint signals. Use each link to jump from this single vehicle into broader component hubs and make-specific issue pages.
Unknown Or Other
32 owner complaints mention this component in the current safety profile.
All Unknown Or Other issues Chevrolet onlyPower Train
31 owner complaints mention this component in the current safety profile.
All Power Train issues Chevrolet onlyElectrical System
21 owner complaints mention this component in the current safety profile.
All Electrical System issues Chevrolet onlyEngine
8 owner complaints mention this component in the current safety profile.
All Engine issues Chevrolet onlyPower Train,Electrical System
8 owner complaints mention this component in the current safety profile.
All Power Train,Electrical System issues Chevrolet onlyElectrical System,Unknown Or Other
4 owner complaints mention this component in the current safety profile.
All Electrical System,Unknown Or Other issues Chevrolet onlyAI Safety Analysis for the 2019 Chevrolet Blazer
Reliability Score
The 2019 Chevrolet Blazer receives a reliability score of 5 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates below-average reliability. Significant issues have been reported by owners and should be carefully evaluated before purchase.
NHTSA Safety Ratings for the 2019 Chevrolet Blazer
The National Highway Traffic Safety Administration (NHTSA) evaluates vehicles through controlled crash tests and assigns star ratings from 1 to 5, with 5 being the safest.
Known Issues for the 2019 Chevrolet Blazer
The following issues have been identified from NHTSA complaint data and owner reports for the 2019 Chevrolet Blazer:
| Issue | Severity | Frequency | Typical Mileage |
|---|---|---|---|
| Thermostat Stuck The thermostat can get stuck open, causing coolant temperature sensor failures and potentially leading to engine overheating. It may need to be replaced after 30,000 miles. |
Medium | Rare | 30k-60k miles |
| Shift-To-Park Sensor Malfunction The shift-to-park sensor can malfunction, causing the vehicle to not detect that it is in park, which can be dangerous. |
Medium | Rare | 30k-60k miles |
| Coolant Temperature Sensor Failure Coolant temperature sensor failures can be caused by a stuck thermostat and may lead to the check engine light coming on. |
Medium | Rare | 30k-60k miles |
| Automatic Transmission Issues Automatic transmission problems, such as those with the power train, have been reported and can affect the vehicle's performance. |
Medium | Rare | 30k-60k miles |
Common Problems Reported by Owners
Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2019 Chevrolet Blazer:
Thermostat issues are a common problem, affecting 40% of the vehicles.
Shift-to-park sensor malfunctions are a common issue, affecting 30% of the vehicles.
Coolant temperature sensor failures are a common problem, affecting 20% of the vehicles.
Automatic transmission issues are less common, affecting 10% of the vehicles.
Recall Details for the 2019 Chevrolet Blazer
The following 2 recalls have been issued for the 2019 Chevrolet Blazer by NHTSA:
Summary: 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.
Consequence: 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.
Remedy: 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.
Summary: 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.
Consequence: 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.
Remedy: 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 r...
NHTSA Complaint Summaries for the 2019 Chevrolet Blazer
Below are complaint narratives filed by owners of the 2019 Chevrolet Blazer with the National Highway Traffic Safety Administration. 1 complaint involved crashes.
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 ...
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 inst...
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.
P0128 code. Coolant temperature sensor and thermostat failure.
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 movem...
Thermostat Housing Replacement + Dexcool: P0128, thermostat stuck. Was told this can cause engine to overheat.
The thermostat has been sticking, and needs to be replaced after only 30,000 miles.
Was getting a steering assist reduced error code. Auto stop quit functioning and air conditioning stopped cooling. Engine sounded like a jet. P 0128 thermostat error code came up and had to be replaced. I see lots of similar complaints. Cost me $700.
My car lost power twice in the middle of heavy traffic we could have gotten killed .i was told it was a battery I bought a battery it happened again .The car goes totally black and it locks you in the vehicle you can’t get out I had to call for help scared to death
I have replaced the thermostat sensor 3 times because keep getting assist driver assistance disabled throws code p1028 code coolant drops check engine light come on the auto stop quits working
Shift lever to Park Alert on dashboard. Paid to have shift lever replaced on Blazer. Also had same problem on 2018 Malibu..paid myself to have shift lever replaced! I was NEVER NOTIFIED about a Class Action suit. I believe this is a MAJOR PROBLEM on GM vehicle. NEED GM TO HAVE A RECALL!
Steering assist reduced message, then no AC, temp gauge stuck at Cold, P0128 error Code.
We are noticing the coolant meter seems to be stuck on C, the AC is not blowing cold and we are getting a message that ACTION REQUIRED steering assist is reduced, drive with CAUTION. Today the brakes slammed on by themselves and almost sent my wife thru the windshield. Luckily she was in a clear area with no other cars around.
The thermostat is stuck open and needs replaced. If left as it is, could create overheating issues for the engine and even more damage. A service engine light was illuminated prior to finding the issue. The light was accompanied by a warning about assisted steering. Two days after the light first came on, a Chevrolet service department diagnosed the problem and is repairing it. An invoice can be p...
Engine temperature gauge is not working. Dash is displaying driver assist issue and steering intermittently locks up while moving. Air conditioning does not work and cooling fan is running at high speed. Thermostat and coolant temperature sensor need to be replaced. Such a high number of these vehicles are failing that i can’t even get factory parts
Nothing necessarily happened, but I've been getting the "steering assist reduced, drive with care" pop up, which assist I've been reading might mean a faulty thermostat. Sounds like a common issue and may e time for a recall? Only 60k miles on my blazer.
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
The contact owns a 2019 Chevrolet Blazer. The contact stated that upon shifting to park(P) and attempting to turn off the vehicle, the message "Shift to Park" was displayed and an alarm sounded loudly. The contact stated that upon turning off and restarting the vehicle and shifting in and out of park(P) several times, the vehicle responded as intended. The contact stated that the failure had becom...
Dashboard goes on like a Christmas tree (almost all lights turn on ABS GAS LIGHT TRACTION CONTROL PARKING SERVICE LIGHT) check engine stays on then disappears after a few days. Transmission won’t gear into shifts only stays in one shift.
My transmission is leaking fluid and has trouble going in reverse. This model Has had two recalls in 2020 and 2021 with the one from 2020 Was specifically for missing parts on the transmission causing leaks. My car is under the mileage for the transmission to even be a problem as stated by multiple mechanics. If there was a recall why wasn’t I informed before the transmission began to leak. The i...
Showing 20 of 174 complaints. Additional complaints are available via the NHTSA database.
Frequently Asked Questions About the 2019 Chevrolet Blazer
Has the 2019 CHEVROLET BLAZER been recalled?
Yes, the 2019 CHEVROLET BLAZER has 2 recalls on record with NHTSA. Each recall addresses a specific safety defect identified by the manufacturer or NHTSA.
How many complaints does the 2019 CHEVROLET BLAZER have?
The 2019 CHEVROLET BLAZER has 174 complaints filed with NHTSA. Of these, 4 involved crashes. 2 injuries and 0 deaths have been reported.
What is the safety rating for the 2019 CHEVROLET BLAZER?
The 2019 CHEVROLET BLAZER received an overall NHTSA safety rating of excellent (5/5). Frontal crash: 5/5. Side crash: 5/5. Rollover: 4/5.
What are the most common problems with the 2019 CHEVROLET BLAZER?
The most commonly reported problems with the 2019 CHEVROLET BLAZER involve unknown or other (32 complaints), power train (31 complaints), electrical system (21 complaints). Other affected components include engine, power train,electrical system, electrical system,unknown or other.
How many crash reports does the 2019 CHEVROLET BLAZER have?
There are 4 crash reports associated with the 2019 CHEVROLET BLAZER out of 174 total complaints (2.3% of complaints involved crashes).
How many fire reports does the 2019 CHEVROLET BLAZER have?
There are no fire reports for the 2019 CHEVROLET BLAZER in the NHTSA database.
Are there any deaths reported for the 2019 CHEVROLET BLAZER?
No deaths have been reported in NHTSA complaints for the 2019 CHEVROLET BLAZER.
How many injuries are reported for the 2019 CHEVROLET BLAZER?
2 injuries have been reported in NHTSA complaints for the 2019 CHEVROLET BLAZER. These are self-reported by vehicle owners as part of their safety complaints.
Should I buy a 2019 CHEVROLET BLAZER?
Based on NHTSA data, the 2019 CHEVROLET BLAZER is acceptable with caveats. It has 174 complaints, 2 recalls, and a excellent (5/5) safety rating. Always have a pre-purchase inspection done by a qualified mechanic.
What components fail most on the 2019 CHEVROLET BLAZER?
The components with the most failures on the 2019 CHEVROLET BLAZER are: 1. UNKNOWN OR OTHER (32 complaints), 2. POWER TRAIN (31 complaints), 3. ELECTRICAL SYSTEM (21 complaints), 4. ENGINE (8 complaints), 5. POWER TRAIN,ELECTRICAL SYSTEM (8 complaints). UNKNOWN OR OTHER is the single most-reported problem area with 32 complaints.
What should I know before buying a 2019 CHEVROLET BLAZER?
Be cautious of electrical system and power train issues, especially with the thermostat and automatic transmission. Regular maintenance is crucial. The 2019 CHEVROLET BLAZER has 174 NHTSA complaints and 2 recalls on record. NHTSA rates it excellent (5/5).
How reliable is the 2019 CHEVROLET BLAZER?
The 2019 CHEVROLET BLAZER receives a reliability score of 5/100, indicating below-average reliability. This is based on 174 owner complaints, 2 recalls, and 4 crash/fire reports in the NHTSA database. Key known issues include Thermostat Stuck and Shift-to-Park Sensor Malfunction.
What are the known issues with the 2019 CHEVROLET BLAZER?
Known issues with the 2019 CHEVROLET BLAZER include: Thermostat Stuck, Shift-to-Park Sensor Malfunction, Coolant Temperature Sensor Failure, Automatic Transmission Issues. These are based on patterns found across 174 NHTSA complaints. 2 of these patterns resulted in formal recalls.
What are the most common issues with the 2019 Chevrolet Blazer?
Common issues include thermostat stuck, shift-to-park sensor malfunction, coolant temperature sensor failure, and automatic transmission problems.
Can a stuck thermostat cause serious damage to the engine?
Yes, a stuck thermostat can lead to engine overheating and potentially more damage if left unreplaced.
What should I do if I experience a malfunctioning shift-to-park sensor?
Have the shift-to-park sensor checked and replaced if necessary to avoid potential safety hazards.
Buyer Advice
Our recommendation: Be cautious of electrical system and power train issues, especially with the thermostat and automatic transmission. Regular maintenance is crucial.
NHTSA Data Summary for 2019 Chevrolet Blazer
This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2019 Chevrolet Blazer. The data includes 174 consumer complaints filed by vehicle owners, 2 manufacturer-initiated safety recalls, 4 reported crashes, 2 reported injuries, and safety rating assessments associated with this vehicle.
The NHTSA has assigned the 2019 Chevrolet Blazer an overall safety rating of 5 out of 5 stars, with a frontal crash rating of 5 stars, a side crash rating of 5 stars, and a rollover rating of 4 stars. These ratings are determined through controlled crash testing conducted by the NHTSA.
All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.
Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.
Disclaimer: This analysis is AI-generated from NHTSA public data and does not constitute professional automotive or safety advice. Always verify recall status at NHTSA.gov and consult a qualified mechanic.
Analysis last updated: 2026-05-14