For enhanced safety, the front and rear seat shoulder belts of the Volvo XC40 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Mazda CX-3 doesn’t offer pretensioners for the rear seat belts.
The XC40’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The CX-3 doesn’t offer pre-crash pretensioners.
Both the XC40 and CX-3 have child safety locks to prevent children from opening the rear doors. The XC40 has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The CX-3’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
The Volvo XC40 has a standard driver’s side knee airbag mounted low on the dashboard. The knee airbag helps prevent the driver from sliding under the seatbelts or the main frontal airbag; this keeps the driver better positioned during a collision for maximum protection. A knee airbag also helps keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The CX-3 doesn’t offer knee airbags.
The XC40 has standard Automatic Braking After Collision, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The CX-3 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
Over 200 people are killed each year when backed over by motor vehicles. The XC40 offers an optional CTA Auto Brake that use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The CX-3 doesn’t offer backup collision prevention brakes.
The XC40 offers an optional 360-Degree Surround View Camera to allow the driver to see objects all around the vehicle on a screen. The CX-3 only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.
The XC40’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 CX-3 doesn’t offer a driver alert monitor.
Both the XC40 and the CX-3 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front wheel drive, 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 and rear cross-path warning.
The Volvo XC40 weighs 714 to 1003 pounds more than the Mazda CX-3. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts. Crosswinds also affect lighter cars more.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Volvo XC40 is safer than the Mazda CX-3:
|
XC40 |
CX-3 |
|
Driver |
|
STARS |
5 Stars |
5 Stars |
Neck Stress |
209 lbs. |
334 lbs. |
|
Passenger |
|
STARS |
5 Stars |
5 Stars |
Neck Injury Risk |
31% |
39% |
Neck Stress |
156 lbs. |
198 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 Volvo XC40 is safer than the Mazda CX-3:
|
XC40 |
CX-3 |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
78 |
183 |
Abdominal Force |
156 G’s |
199 G’s |
Hip Force |
320 lbs. |
334 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
119 |
241 |
Spine Acceleration |
48 G’s |
85 G’s |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
13 inches |
14 inches |
HIC |
237 |
287 |
Hip Force |
411 lbs. |
629 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the XC40 its highest rating: “Top Pick Plus” for 2019, a rating granted to only 103 vehicles tested by the IIHS. The CX-3 is only a standard “Top Pick” for 2019.