With various manufacturers using different words to describe the same features, it's pretty difficult to know what you're getting based on the name alone. I'm a relatively new CX-5 owner, but I also own a Honda Odyssey. I noticed that the CX-5's "lane keep assist" system is nothing like Honda's "lane keep assist" system. I'm hoping some of you experts can help clarify these systems to set my expectations correctly for how much assistance the CX-5 is able to provide.

From Mazda's website:
When traveling at 37 mph or higher, the Lane Departure Warning System gives you a combination of audible and visual warnings when it detects that you are about to unintentionally depart from your lane. And with Lane-keep Assist, minor steering corrections are made to help keep your vehicle in its lane.

From Honda's website:
Lane Departure Warning (LDW) - Alerts you when you are crossing the lines that mark your traffic lanes. (They may have stoped using this terminology since 2018 when I purchased my Odyssey and now roll this into the RDM system below).
Road Departure Mitigation System (RDM) - RDM can determine if you cross over detected lanes without signaling, can provide steering assistance to help return to your lane or provide braking to help you keep from leaving the roadway entirely.
Lane Keeping Assist System (LKAS) - With your hands on the steering wheel, long highway drives are easier with LKAS, which subtly adjust steering to help keep the vehicle centered in a detected lane.

Based on my experience and these definitions, Mazda's Lane-keep assist system is more like Honda's Road Departure Mitigation System. That is, if you cross over a detected lane, it will attempt to pull your car back into your lane.

Experts, please confirm the following: Mazda's Lane-keep assist system does not engage until you're crossing over a lane. It does not help keep the vehicle centered in its lane.

 

Mine engages just before the tire crosses the line. But, it does not keep the CX centered in the lane.

 

My Mazda CX5, actually my wife's acts more like the Lane Departure Warning, and I feel the Mazda has very little actual assist, unlike other systems I have encountered which give more aggressive steering input.

I suppose it is all in manufacturer philosophy about just how intrusive safety suite features should be. For example, on my WRX, the Blind Spot Monitor System is very subtle, no audio cues, just the lighted orange icon in the side view mirror when the radar detects an object in the blind spot, and that icon flashes if you are crossing over into the path of with a vehicle in your blind spot.. On the other hand the Subaru Lane Keep Assist is much more aggressive than the Mazda.

 

I love the Mazda's system. It gives a shake to signify you are getting close to leaving the lane which is helpful if not paying close enough attention. I had Honda's version in my 2016 RDX Advance and hated it. Very aggressive and did things I didn't want it to do. I turned it off when I drove the car. I also was not a fan of the automatic braking in the Acura, several times it identified cars turning in front of me as an issue and automatically slammed on the brakes. Very scary and I was no where near hitting the car in front of me.