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The radiator had a crack that nobody located even though I had been smelling antifreeze since I purchased it at 24,000 miles just over a year ago.  I brought it in for an oil change today because I was leaving town for the weekend tomorrow and now a hole had blown through the bottom of the radiator.  Had this happened when I was in a remote area of the mountains without cell service this could have been a very big problem.  Or had it blown while traveling up the mountain pass it would have put my life and others passing me on the road at risk.  There weren't any warning lights on and the car never overheated.  There weren't any outward leaks up until the hole was blown in the radiator.  I have had it in several times for oil changes and there were never any visible leaks noted. Luckily my engine never blew because I've been driving with a cracked radiator for at least a year now.

CHEVROLET BLAZER 2024 UNKNOWN OR OTHER

While driving my 2024 Chevrolet Blazer EV, the vehicle suffered a sudden, complete failure of the power braking assist system. 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. Speed Limited" illuminated with "Brake Park" remaining on. Third Warning: "Brake System Failure. 62 MPH Top Speed" illuminated with "Brake Park" remaining on. Immediately upon these warnings triggering, the power braking assist and emergency mechanical reserve failed completely. When pressing the brake pedal, the vehicle did not slow down, and the pedal failed to engage the brakes. To avoid a catastrophic intersection collision and bring the vehicle to a halt, I was forced to deliberately steer the vehicle into a concrete curb to use friction to stop the car. The vehicle is a total loss of braking safety and cannot be driven. Safety Risk: The sudden loss of braking assist creates an immediate crash hazard, as stopping distances are severely multiplied. Limiting a vehicle to a maximum speed of 62 mph while experiencing zero brake assist on active roadways places the driver and surrounding traffic in extreme danger.

CHEVROLET BLAZER 2024 SERVICE BRAKES

"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. The vehicle was restarte and driven home, where an onboard diagnostic check revealed an emissions system failure. The dealership later confirmed that BOTH close-coupled catalytic converters on the 3.6L V6 were damaged. The check engine light was a solid light. Not flashing.

CHEVROLET BLAZER 2024 FUEL/PROPULSION SYSTEM

I am reporting a potential safety defect involving unintended automatic emergency braking/forward collision warning/brake-control behavior, reverse automatic braking, parking brake behavior, and driver-assistance/sensor calibration. Incident XXX ~11:15 AM, [XXX] driving 2024 Chevrolet Blazer EV ~20â25 mph on/near [XXX]. Vehicle displayed red collision alert and abruptly braked hard although the lane was clear; only a car was parked in a driveway on the right. Sudden braking created serious risk of rear-end collision/loss of control. Vehicle used for family transportation; toddler (~30.8 lb) had been in vehicle ~10 minutes before and family includes blind/visually impaired passenger. History of unwanted reverse emergency braking ~every 45 days: Jan 2026 near Crust Pizza Woodforest (backing up) and March 2026 at H-E-B 7988 FM 1488 Magnolia (backing out), jolting child in rear-facing car seat. Prior service at Keating Chevrolet Nov 12, 2025 (including recall/service for Unintended Parking Brake Engagement N252503010 and missing chassis harness plugs update) did not resolve unwanted braking. After June 10, AEB/front pedestrian braking/intersection collision braking were disabled as temporary safety mitigation. Vehicle removed from daily family use, available for inspection, and I request NHTSA review. Any inspection should preserve relevant braking/parking/AEB/forward collision/sensor data before any reset/update/repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

CHEVROLET BLAZER EV 2024 SERVICE BRAKES

The contact owns a 2024 Chevrolet Blazer EV. The contact stated that while driving approximately 45 MPH and depressing the brake pedal to reduce speed, the vehicle failed to respond as intended and crashed into the rear end of a second vehicle at approximately 5 MPH. Moments later, a third vehicle crashed into the rear of the contact's vehicle.  The contact was not injured during the crash. The occupant of the third vehicle sustained an unknown injury. A police report was filed. The vehicle was towed the residence and was later towed to a repair shop. The third vehicle was towed to an undisclosed location.  The local dealer was not contacted. The cause of the failure was not determined. The manufacturer was notified of failure. The failure mileage was 5,500.

2024 Chevrolet Blazer FWD — vehicle data sourced from FuelEconomy.gov.

Le Chevrolet Blazer FWD 2024 est un VUS compact à deux roues motrices, offrant une motorisation essence performante. Avec une consommation combinée de 22 mpg, il représente un choix sûr pour vos déplacements quotidiens.

	2019	2020	2021	2022	2023	2024	2025
Prix	—	—	—	—	$35,995	$35,700–$47,700	—
Cylindrée	2.5L	2L	3.6L	3.6L	2L	2.0L	3.6L
Type de carburant	Essence ordinaire	Essence ordinaire	Essence ordinaire	Essence ordinaire	Essence ordinaire	Regular	Essence ordinaire
Transmission	Automatique 9 vitesses	Automatique 9 vitesses	Automatique 9 vitesses	Automatique 9 vitesses	Automatique 9 vitesses	8 speed automatic	Automatique 9 vitesses
Type de carrosserie	Petit SUV 2RM	Petit SUV 2RM	Petit SUV 2RM	Petit SUV 2RM	Petit SUV 2RM	SUV	Petit SUV 2RM

Chevrolet Blazer FWD (2024) Spécifications