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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 Trailblazer doesn’t offer a whiplash protection system.
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 Trailblazer doesn’t offer a driver alert monitor.
Both the CX-30 and the Trailblazer have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, 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, rearview cameras, available all-wheel drive, blind spot warning systems and rear cross-path warning.
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 vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its available headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the CX-30 the rating of “Top Pick” for 2020, a rating granted to only 30 vehicles tested by the IIHS. The Trailblazer has not been tested, yet.
The CX-30’s corrosion warranty is unlimited miles longer than the Trailblazer’s (unlimited vs. 100,000 miles).
A hardened steel chain, with no maintenance needs, drives the camshafts in the CX-30’s engine. A rubber cam drive belt that needs periodic replacement drives the Trailblazer’s camshafts. If the Trailblazer’s belt breaks, the engine could be severely damaged when the pistons hit the opened valves.
From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Mazda vehicles are more reliable than Chevrolet vehicles. Consumer Reports ranks Mazda second in reliability. Chevrolet is ranked 25th.
The CX-30’s 2.5 DOHC 4-cylinder produces 49 more horsepower (186 vs. 137) and 24 lbs.-ft. more torque (186 vs. 162) than the Trailblazer’s standard 1.2 turbo 3-cylinder. The CX-30’s 2.5 DOHC 4-cylinder produces 31 more horsepower (186 vs. 155) and 12 lbs.-ft. more torque (186 vs. 174) than the Trailblazer’s optional 1.3 turbo 3-cylinder.
On the EPA test cycle the CX-30 Premium AWD gets better highway fuel mileage than the Trailblazer 4x4 Auto 1.3 turbo 3 cyl. (32 hwy vs. 30 hwy).
An engine control system that can shut down some of the engine’s cylinders helps improve the CX-30 Premium’s fuel efficiency. The Trailblazer doesn’t offer a system that can shut down part of the engine.
The CX-30 has engine speed sensitive variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The Trailblazer doesn’t offer variable-assist power steering.
For better maneuverability, the CX-30’s turning circle is 2.6 feet tighter than the Trailblazer’s (34.8 feet vs. 37.4 feet).
The CX-30 has 2.3 inches more front hip room, .2 inches more front shoulder room and 7.5 inches more rear hip room than the Trailblazer.
When two different drivers share the CX-30 Preferred/Premium, the memory seats and mirrors make it convenient for both. Each keyless remote activates different, customized memories for the driver’s seat position and outside mirror angle. The Trailblazer doesn’t offer a memory system.
The CX-30 Premium has a standard heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Trailblazer doesn’t offer a heads-up display.
The CX-30’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Trailblazer’s passenger windows don’t close automatically.
The CX-30’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Trailblazer’s manually variable intermittent wipers have to be constantly adjusted.
To help drivers see further while navigating curves, the CX-30 Premium has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Trailblazer doesn’t offer cornering lights.
When the CX-30 Preferred/Premium is put in reverse, both rearview mirrors tilt from their original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirrors into their original positions. The Trailblazer’s mirrors don’t automatically adjust for backing.
The CX-30 Select/Preferred/Premium’s standard dual zone air-conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Trailblazer doesn’t offer dual zone air-conditioning.
Both the CX-30 and the Trailblazer offer rear vents. For greater rear passenger comfort, the CX-30 Select/Preferred/Premium has standard rear air-conditioning vents to keep rear occupants cool in summer or warm in winter. The Trailblazer doesn’t offer rear air-conditioning vents, only heat vents.
The CX-30’s available GPS navigation system has a real-time traffic update feature that plots alternative routes to automatically bypass traffic problems. (Service not available in all areas.) The Trailblazer’s available navigation system doesn’t offer real-time traffic updates.
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