Joined
·
46 Posts
Same, happens to me a lot of times in left turn lanes and sometimes in right turn lanes where people are stopping, yielding, going like normal people. BEEP BEEP BEEP BEEP, brakes, cant move at all
First Hand Experience with Safety Sense Pre-Collision System
21 - 40 of 46 Posts
Joined
·
2,364 Posts
Exact same situation I was in and car safety tech saved me.
Joined
·
9 Posts
Vehicle radar like the one Toyota and other car makers now use operate around 84 GHz and can detect a wide variety of things like other cars, people and animals. These radars use the Doppler frequency shift of the return from a target to determine the relative velocity between the radar and the target. The Doppler shift comes from the motion of the target along the radar’s line of sight. Movement perpendicular to the radar line of sight will not cause a Doppler shift.
Because the vehicle with the radar is moving, all returns from stationary objects will have a Doppler shift corresponding to the vehicle speed. This includes trees, guardrails, bridges, parked cars, etc. This is called “clutter”, and it will overwhelm the radar’s processor if it isn’t blocked. So, there is a notch filter to that effectively blocks out signals from stationary objects. This is why the vehicle radar may not detect a deer on the side of the road or one crossing straight across the vehicle path. It also can lead to collisions with stationary vehicles ahead without the safety system preventing the collision.
There are some tricks that can be implemented to mitigate the Doppler notch problem, but it is difficult to completely prevent it.
Because the vehicle with the radar is moving, all returns from stationary objects will have a Doppler shift corresponding to the vehicle speed. This includes trees, guardrails, bridges, parked cars, etc. This is called “clutter”, and it will overwhelm the radar’s processor if it isn’t blocked. So, there is a notch filter to that effectively blocks out signals from stationary objects. This is why the vehicle radar may not detect a deer on the side of the road or one crossing straight across the vehicle path. It also can lead to collisions with stationary vehicles ahead without the safety system preventing the collision.
There are some tricks that can be implemented to mitigate the Doppler notch problem, but it is difficult to completely prevent it.
IIHS actually tests the crash mitigation and accident avoidance systems with cars and pedestrians. RAV4 gets high marks, but check out the details. It’s an interesting testing method.
Joined
·
2,364 Posts
Checked it out looks good, except 37mph rating isn't impressive as it only reduces speed by half pretty much. Ford almost stops but Hyundai winsIIHS actually tests the crash mitigation and accident avoidance systems with cars and pedestrians. RAV4 gets high marks, but check out the details. It’s an interesting testing method.
Rav4
In the 37 mph IIHS test, impact speed was reduced by 23 mph.
Highlander
In the 37 mph IIHS test, impact speed was reduced by 24 mph.
Escape
In the 37 mph IIHS test, impact speed was reduced by 34 mph.
Palisade
In the 37 mph IIHS test, this vehicle avoided a collision.
Considering a few years ago cars would just beep at you to warn you of a pending collision. A few years before that, silence.
I’d say we’re making progress
I’vebeen on the interstate at 65mph going into an off ramp when a car cutin front of me to make the same exit and slammed on their brakes. No way could I hit the brake faster than the crash mitigation system did and saved me from colliding with the dipshit. Now that I think about it, I wonder if it wasn’t an insurance fraud attempt. ಠ_ಠ
I’d say we’re making progress
I’vebeen on the interstate at 65mph going into an off ramp when a car cutin front of me to make the same exit and slammed on their brakes. No way could I hit the brake faster than the crash mitigation system did and saved me from colliding with the dipshit. Now that I think about it, I wonder if it wasn’t an insurance fraud attempt. ಠ_ಠ
Joined
·
69 Posts
This answer is better than anything I have read from Toyota or any other car manufacturer. I, being the person I am and having never had the system activate, decided I needed to test it using cardboard and aluminum foil. Now I know why that didn't work and why I've never had the system activate. I wish manufacturers would provide people with information like this instead of "Trust us, it's working.. don't try to test it". Thank you so much, great post!
The reality is that these days, Hyundai/KIA beats Toyota in almost every vehicle category they compete. The 2022 Tucson is much nicer, upscale, comfortable, quiet (and cheaper) than RAV4. Pallisade/Telluride beat Highlander hands-down. Compared with the Corolla, Elantra feel like a luxury car. Seltos and Venue are affordable, practical entry-level SUVs, while the CH-R is a joke. And the list goes on. Just dare to compare (and test drive) ...
Joined
·
2,364 Posts
Agreed. Been looking at that 2022 Tuscon hybrid but I may also just go with Ioniq5.
Time will tell if the engines and transmissions make it to 100K never mind the 250K that Toyotas do.
Didn't Hyundai or Kia recently issue a TSB to park various models outside because they can spontaneously ignite and burn down your garage?
Joined
·
3,654 Posts
I had received a recall on my 2009 BMW X3 stating similar about a heated PCV valve which could heat up and catch fire. The notification said that there wasn't resolution or parts available yet. A whole year went by and still no resolution or parts. By then it didn't matter since it got totaled and now I have a RAV4 parked in the garage where it used to park.
Hyundai/KIA must be pretty confident given that they warranty them for 10 yrs / 100k miles (unlike Toyota who only gives you 5 yrs / 60k miles).
Yes but you are assuming they will be honest and truly honor that warranty. I occasionally read the Hyundai and Kia forums about their engines and over the years I have read complaints that when people experience a problem with them the service managers generally give a variation of the line "that's how they all are" to avoid warranty repairs. There are a number of TSBs and recalls for these car lines
Joined
·
2,364 Posts
Yeah much like Toyota with its infamous gas tank issue among other things. They denied any issue with it for at least 6 month even with lots of folks complaining.
My daughter has a KIA and dealer service has been excellent (much better than my experience with multiple Toyota dealers, of which only one has been good). She had her car serviced by three different dealers as she has moved to different places, and all three dealers have been great. Like dealing with a small, family-owned business who really takes about EVERY customer, unlike Toyota dealers who act as a large corporation and behave as if performing paid service is a making you a favor.
Talking about recalls, Toyota is the undisputed recall king - with an endless stream of safety recalls. I had 8 Toyota vehicles so far, and ALL of the had at least one safety recall (and several had more than one).
"That's how they all are" ... just go to ToyotaNation.com and read the issues people are having with 2020 and 2021 Toyotas (Highlander wind noise, RAV4 hybrid and Venza gas tank that can't be filled up, etc.).
Nonsense! Toyota outsells Kia and Hyundai by a gigantic margin and not just in the U.S. but internationally. This is because Toyotas have better long term reliability. For many years Kia and Hyundai were notorious pieces of junk. The Rav4 hybrid gas tank issue has now been resolved. The DCM firmware battery drain issue is resolved. The engine block flaw in 2019 affected only a few cars worldwide and was fixed. The only real issue in the 5th generation Rav4 is the possibility of roof leaks which the new orange o ring washers may resolve. All car manufacturers have TSBs and recalls, but without a doubt as you say "the undisputed recall king" over the years are the two Korean companies. Google it. Look at the NHTSA site and compare the number and severity of the recalls. I'm glad your daughter had a favorable service experience and sorry you had a bad one. All dealer service departments vary in how they treat customers and their operating style (example: some let you watch your car being worked on through a window and others hide it like they are doing something top secret. )My previous point was that based on the many comments in the Hyundai and Kia forums the Koreans may not honestly address issues under warranty-- not how nice and friendly the personnel were. If Kias are so great why have you owned 8 Toyotas over the years? Why did you keep shelling out cash for them if they were so bad compared to your daughter's touted Kia?
Toyota sells more cars than Hyundai/KIA because they have they have been on the international market for much longer. But if you look at the last 5 years, Toyota's market share is shrinking while Hyundai/KIA is growing. 30 years ago GM was the undisputed global leader. Was it because they made the best cars? Toyota is the GM of the 21st century. Past glory, bleak future. 10 years from now, more dynamic companies like Hyundai/KIA, Geely and Tesla will dominate the market, and Toyota will be in the same place as GM and Ford are today.
I HAD 8 Toyota cars (and 12 from other manufacturers). Toyotas WERE a good option 10-15 years ago. These days, they are not. Toyota has been falling in quality and reliability ratings in most professional reviews. Consumer Reports used to rave about Toyota. Which is the most reliable brand now? Mazda. Which brand has the most Top Safety Pick ratings (proportionally to the number of models they offer)? Hyundai/KIA. Which brand has the highest Initial Quality according to JD Power? KIA. You can live in the past (and follow in the steps of the dinosaurs) or embrace the future ...
JD Power initial quality is new car owners first year impressions- not long term reliability. Consumer Reports are a joke to real car guys. I remember when the Ford Explorer was their top 5 star pick for suv's in the '90s and right up to the major rollover and tire recall and then they finally dropped it. Apparently their testing never spotted the defect and they never bothered to research the numerous fatalities, lawsuits and cases involving it which were common knowledge in the news media. With regard to safety ratings do not look at anything other than the NHTSA and the Insurance Institute tests in the U.S. and the official EU and German tests and ratings. The Rav4 has excellent ratings. Beware of any car magazine website or Youtube rating. One way or another they all take payola from car companies and depend on their goodwill for media junkets and free cars to test. Several years ago one of the big car magazines chose the Porsche Cayenne the Suv of the year after its tube frame racing version won the Paris-Dakar rally. They later admitted their street version test vehicle had been minimally driven by their staff as it had been in the shop for several months with electrical issues and needed a PCM/ECM computer replaced. Given the Great Fearless Leader in North Korea, Kia and Hyundai may not even be around in 10 years. I do not wish to embrace your speculation of what tomorrow may bring. With regards to your comment about the steps of dinosaurs-- if I be a dinosaur I am a veritable Tyrannosaurus! By the way--- if you so dislike Toyotas, why are you on this site hyping the Korean duo? Such smacks of trolling.
21 - 40 of 46 Posts
