AI Damage2024 Chevrolet Blazer: common problems
Owners of the 2024 Chevrolet Blazer filed 52 complaints with NHTSA, most often about service brakes and forward collision avoidance. The maker issued 422 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 52
- involving a crash
- 5
- Technical service bulletins (TSB)
- 422
What fails most often
- 1 Service brakes 23% of all complaints
- 2 Forward collision avoidance 21% of all complaints
- 3 Powertrain 15% of all complaints
- 4 Electrical system 13% of all complaints
- 5 Engine 13% of all complaints
- 6 Fuel/propulsion system 8% of all complaints
- 7 Air bags 8% of all complaints
- 8 Structure 6% of all complaints
- Service brakes: 12 complaints (23% of all), 4 of them with a crash reported by the owner; manufacturer bulletins for this component: 6.
- Forward collision avoidance: 11 complaints (21% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 6.
- Powertrain: 8 complaints (15% of all); manufacturer bulletins for this component: 48.
- Electrical system: 7 complaints (13% of all); manufacturer bulletins for this component: 87.
- Engine: 7 complaints (13% of all); manufacturer bulletins for this component: 63.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · turbo · 4 cyl
- 3.6 L · petrol · 6 cylnamed in 1 complaints
- electric
- automatic, 1-speed
- automatic, 9-speed
Drive: AWD, FWD, RWD
Symptoms owners describe
How many of the 52 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Service brakes | 12 | 4 | 6 |
| Forward collision avoidance | 11 | 1 | 6 |
| Powertrain | 8 | 0 | 48 |
| Electrical system | 7 | 0 | 87 |
| Engine | 7 | 0 | 63 |
| Fuel/propulsion system | 4 | 0 | 7 |
| Air bags | 4 | 3 | 1 |
| Structure | 3 | 2 | 19 |
| Lane departure | 3 | 0 | 2 |
| Parking brake | 3 | 0 | 0 |
| Engine and cooling | 2 | 0 | 32 |
| Vehicle speed control | 2 | 0 | 1 |
| Steering | 1 | 0 | 8 |
| Suspension | 1 | 0 | 7 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The failure was accompanied by a rapid cascade of three sequential dashboard warning messages in immediate succession: First Warning: "Service ESC" illuminated alongside the "Brake Park" warning light. Second Warning: "Brake Assist Failure. Press Hard to Brake.
On 10/29/25 I brought the vehicle in to Richard Lucas Chevrolet due to the alert from my insurance co that there was a recall with parking brake system. The dealership checked the car and told me they had to order the part that was needed due to the recall.
The car due to the parking brake system recall lost control, the brakes would not stop and caused the vehicle to crash into 2 parked cars, landing on top of the 2nd vehicle which was a pick up truck
the car jumped/jerked like it was trying to change gears while accelerating and two times when at a complete stop at a light. The car was taken to dealership on Sep 2, 2025 and needed a full transmission replacement. The parts were on back order and the vehicle was not complete until November 20th of 2025
My 2024 Chevrolet Blazer EV AWD has experienced two separate incidents involving sudden loss of propulsion without warning. First Incident – XXX While driving in [XXX], the vehicle suddenly lost propulsion without warning while I was in a turn lane in front of a medical center.
A rapid loss of engine coolant can cause immediate engine overheating, thermal management failure, and a sudden loss of vehicle propulsion while driving at highway speeds, significantly increasing the risk of a crash.
The contact stated that while driving at an undisclosed speed, the vehicle experienced phantom braking on four separate occasions. The Forward Collision Avoidance warning light was illuminated. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired.
"While attempting to merge onto a high-speed freeway on-ramp, the vehicle suffered a sudden and catastrophic loss of engine power, rendering it unable to accelerate and creating an immediate life-threatening safety hazard.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 860 of 2,102 model years in the NHTSA data (top 41% most complained about).
On average one model year of the Blazer has 92 complaints (8 years in the data). This year has 52, below average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- PI created to guide technicians through radio restriction process
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator.
- This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is…
This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
- This preliminary information is for technicians that may see DTCs that are history and should not perform…
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
- This Preliminary information communicates to dealers a procedure to reset the radio
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
- This Preliminary information communicates to the technicians a diagnostic tip if a technician loses…
This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with the image processor #2 and how to restore communication
- This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- PI to help diagnose A/C concern
- This Preliminary information communicates an issue with an OTA pending message still displayed after an…
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
- This preliminary information is to inform technicians that GM is placing the B174W Front View Camera…
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation…
NHTSA lists 422 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2024 Chevrolet Blazer?
Owner complaints to NHTSA most often mention: service brakes, forward collision avoidance, powertrain. Total complaints: 52. The most frequent symptoms in complaint texts: warning lights, check engine (21%), rollaway, parking brake (10%), driver assists: adaptive cruise, lane keeping (8%).
How many service bulletins (TSB) were issued for the 2024 Chevrolet Blazer?
NHTSA lists 422 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2024 Chevrolet Blazer from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2024 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.