For enhanced safety, the front and rear seat shoulder belts of the Mazda CX-30 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Chevrolet Blazer doesn’t offer pretensioners for its rear seat belts.
The Mazda CX-30 has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags help prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Blazer doesn’t offer a front passenger side knee airbag.
The CX-30 has standard Whiplash-Reducing Headrests, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash-Reducing Headrests system moves the headrests forward to prevent neck and spine injuries. The Blazer doesn’t offer a whiplash protection system.
In a Vehicle-to-Vehicle Frontal Crash Prevention 2.0 test conducted by the Insurance Institute for Highway Safety (IIHS), the Mazda CX-30 achieved a “Acceptable” rating - the second highest possible - for its performance in forward collision warning and automatic braking systems, demonstrating its excellent capabilities in preventing collisions. The Chevrolet Blazer has not been tested.
Over 200 people are killed each year when backed over by motor vehicles. The CX-30 Preferred/Carbon/Aire/Premium has standard Rear Smart Brake Support that use rear sensors to monitor for objects to the rear and automatically apply the brakes to prevent a collision. The Blazer doesn’t offer backup collision prevention brakes.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the CX-30. But it costs extra on the Blazer.
Both the CX-30 and Blazer have Rear Cross Traffic Alert, but the CX-30 Preferred/Carbon/Aire/Premium has Smart Braking Support - Rear Crossing (automatically applies the brakes) to better prevent a collision when backing near traffic. The Blazer’s Rear Cross Traffic Alert doesn’t automatically brake.
The CX-30’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Blazer doesn’t offer a driver alert monitor.
Both the CX-30 and the Blazer have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Mazda CX-30 is safer than the Chevrolet Blazer:
|
|
CX-30 |
Blazer |
|
|
Driver |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
148 |
182 |
| Neck Compression |
18 lbs. |
25 lbs. |
| Leg Forces (l/r) |
201/172 lbs. |
104/435 lbs. |
|
|
Passenger |
|
| STARS |
5 Stars |
4 Stars |
| HIC |
179 |
313 |
| Chest Compression |
.5 inches |
.8 inches |
| Neck Injury Risk |
33.5% |
43% |
| Neck Compression |
85 lbs. |
140 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Mazda CX-30 is safer than the Chevrolet Blazer:
|
|
CX-30 |
Blazer |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
60 |
93 |
| Chest Movement |
.8 inches |
.8 inches |
| Hip Force |
239 lbs. |
369 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
121 |
251 |
| Spine Acceleration |
33 G’s |
45 G’s |
| Hip Force |
623 lbs. |
673 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
161 |
265 |
| Hip Force |
685 lbs. |
695 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Mazda CX-30 has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2026 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, a “Good” score in the revised pedestrian crash prevention test, and an “Acceptable” score in the revised vehicle-to-vehicle crash prevention test. The Blazer has not yet been fully evaluated by the IIHS for 2026.