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Unexpected Automatic Emergency Braking Activation at Highway Speeds in Cold Temperatures.     Description:    I am reporting a safety issue with a 2023 Mazda CX-30 involving the collision avoidance / automatic emergency braking system.       While driving at highway speeds, the system activates a forward collision warning (audible alert and dashboard indicator), followed almost immediately by automatic braking, even when there are no vehicles, obstacles, or pedestrians ahead.     Conditions When Issue Occurs:    * Ambient temperature: below ~40Â°F (4Â°C)  * Road conditions: cold, often icy or snowy  * Speed: highway speeds 45-75  * Environment: clear roadway, no visible hazards  * visibility : clear    System Behavior:   * Audible warning and visual alert activate  * Automatic braking occurs approximately  0.5â1 second after the warning  * No obstacle is present to justify intervention   Safety Risk:   This presents a serious safety hazard because:   * Sudden braking at highway speeds creates a high risk of rear-end collision  * The warning-to-brake interval is extremely short, leaving little time for driver override.  * Occurs in low-traction conditions, increasing risk of loss of control.  * The event is unexpected and not predictable by the driver.   Frequency:   * Occurred multiple times under similar cold-weather conditions.  * Appears repeatable based on temperature range.    Attempts to Resolve:   * Sensors/camera appear clean and unobstructed.  * No prior collision damage to the vehicle.  * Issue persists despite normal operation otherwise.  * Similar reports observed from other owners in online discussions.    This is not a one time occurrence, in the section below, i noted the last event but this is a daily occurrence in temperatures below 42F.

MAZDA CX-30 2023 FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

While attempting a left-hand turn, the steering wheel suddenly became stiff and unresponsive, as if the mechanical gear had bound. This sudden resistance made it impossible to complete the turn, causing the vehicle to strike a curb at low speed. A post-accident inspection at Lee Johnson Mazda (RO# 649854) confirmed extensive damage, including a bent inner tie rod, a damaged front wheel bearing/hub assembly, and wheel/tire damage totaling over $6,500.  The dealership stated no electronic fault codes were present in the computer, but the physical behavior matches the 'sticky steering' symptoms currently under federal investigation for other Mazda models (Recall 24V022 / RQ26002). I believe a mechanical failure in the steering gear caused the collision.

MAZDA CX-30 2023 STEERING

One day after oil and filter change, engine LOW OIL LEVEL light illuminated on dash. Engine oil dipstick displays full oil level; no signs on oil leaks under the vehicle. Appears to be failed oil level sensor. Upon restarting the vehicle, LOW OIL LEVEL light is turned off. Intermittently returns after some time of driving. Have not observed light turning itself off without shutting down the vehicle.

MAZDA CX-30 2023 ENGINE

My 2023 Mazda CX-30, which is currently under full manufacturer warranty, was brought to the dealer on October 10, 2025, specifically to address a safety defect involving white chemical particulates blowing through the HVAC vents. The dealership confirmed the failure of the "evaporative coating", which resulted in unidentified chemical byproduct being discharged directly into the passenger cabin.The vehicle remained out of service for 103 days due to this manufacturing defect. Upon receiving the Repair order (RO# 77004584) today, January 20, 2026, I discovered a significant safety concern that violates standard warranty repair protocols: the technician admitted to receiving two separate heater unit boxes that were damaged during shipping and subsequently 'transferred all salvageable items "from one damaged unit to the other to make one complete unit". As a consumer with a vehicle under warranty, I am entitled to a repair using new, undamaged factory parts. I am extremely concerned about the structural and functional integrity of a "reconstructed" HVAC system assembled from damaged components. Furthermore, despite the confirmed chemical emission, no professional decontamination of the interior was performed. The manufactures is now using financial threats of storage and rental car fees to force me to accept this substandard, "cannibalized" repair.

MAZDA CX-30 2023 UNKNOWN OR OTHER

While coasting slowly through a parking lot at approximately 5-8mph I tapped the brake to slow further while making a tight turn and to safely pass a vehicle also turning towards me. This caused the car to lurch and accelerate as though my foot was on the gas pedal, but it wasn't. I had to step hard on the brake to bring it under control.

MAZDA CX-30 2023 VEHICLE SPEED CONTROL

2023 Mazda CX-30 4WD — vehicle data sourced from FuelEconomy.gov.

The 2023 Mazda CX-30 4WD offers a capable 4-wheel drive system with a 2.5L naturally aspirated petrol engine, delivering 191 horsepower. Its compact SUV body style provides a comfortable ride with a combined 25 MPG, making it a practical choice for everyday driving.

	2020	2021	2022	2023	2024	2025	2026
Price	—	—	—	$24,995	$25,000–$31,000	—	—
Engine Capacity	2.5L	2.5L	2.5L	2.5 L	2.5L	2.5L	2.5L
Fuel Type	Regular	Regular	Regular	Regular	Regular	Regular	Regular
Transmission	Automatic (S6)	Automatic (S6)	Automatic (S6)	6 speed automatic	Automatic (S6)	Automatic (S6)	Automatic (S6)
Body Type	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD	SUV	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD	Small Sport Utility Vehicle 4WD

Mazda CX-30 4WD (2023) Specifications