For enhanced safety, the front seat shoulder belts of the Mazda CX-50 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The GMC Terrain doesn’t offer height-adjustable seat belts.
The Mazda CX-50 has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps 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 Terrain doesn’t offer knee airbags.
Over 200 people are killed each year when backed over by motor vehicles. The CX-50 Turbo Premium Plus has standard Smart Brake Support-Reverse that use rear sensors to monitor for objects to the rear and automatically apply the brakes to prevent a collision. The Terrain doesn’t offer backup collision prevention brakes.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the CX-50. But it costs extra on the Terrain.
The CX-50 has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the Terrain’s blind spot costs extra.
To help make backing out of a parking space safer, the CX-50 has standard Rear Cross Traffic Alert and Rear Cross Traffic Braking on the Turbo Premium Plus automatically engages the brakes to help avoid a collision. GMC charges extra for Rear Cross Traffic Alert on the Terrain and the Terrain’s Rear Cross Traffic Alert does not include automatic braking.
The CX-50’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 Terrain doesn’t offer a driver alert monitor.
Both the CX-50 and the Terrain have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras and available around view monitors.
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Mazda CX-50 is safer than the Terrain:
|
CX-50 |
Terrain |
Overall Evaluation |
ACCEPTABLE |
MARGINAL |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Neck Compression |
67 lbs. |
112 lbs. |
Shoulder Deflection |
1.54 in |
1.73 in |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
ACCEPTABLE |
Head Injury Criterion |
251 |
733 |
Head Peak Forces |
no contact |
101 G’s |
Neck Compression |
67 lbs. |
491 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
1.02 in |
1.65 in |
Shoulder Force |
379 lbs. |
402 lbs. |
Torso Max Deflection |
.83 in |
1.57 in |
Pelvis |
GOOD |
GOOD |
Pelvis Force |
446 lbs. |
669 lbs. |
Head Protection |
GOOD |
MARGINAL |
For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, and daytime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the CX-50 the rating of “Top Safety Pick” for 2023, a rating granted to only 53 vehicles tested by the IIHS. The Terrain last would have qualified as a “Top Safety Pick” in 2017.