Failure Rates and Reliability Study

[Area 51]

https://www.jdpower.com/business/press-releases/2024-us-vehicle-dependability-study-vds

• Electrified vehicles more problematic than others: Owners of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) experience more problems than owners of gas-powered and hybrid vehicles. BEVs are most troublesome (256 PP100), followed by PHEVs (216 PP100). Hybrids (191 PP100) and gasoline vehicles (187 PP100) fare significantly better. At three years of ownership, tires are a sore spot for BEVs, with 39% of owners saying they replaced tires in the past 12 months—19 percentage points higher than owners of gas-powered vehicles.
• Toyota Motor Corporation wins most segment awards: Toyota Motor Corporation’s nine segment awards is the most received by any automaker since 2017 when the Japanese automaker received 10 awards.
• The most improved brands: The top three brands showing the greatest improvement in the number of problems are Porsche (33 PP100 improvement); Mercedes-Benz (22 PP100 improvement); and Toyota (21 PP100 improvement).

Highest-Ranked Brands​

Lexus ranks highest overall in vehicle dependability for a second consecutive year, with a score of 135 PP100. Among premium brands, Porsche (175 PP100) ranks second and BMW (190 PP100) ranks third.

Toyota ranks highest in the mass market segment, with a score of 147 PP100. Buick (149 PP100) ranks second, while Chevrolet (174 PP100) and MINI (174 PP100) each rank third in a tie.

The parent corporation receiving the most model-level awards is Toyota Motor Corporation with nine: Lexus ES, Lexus IS, Lexus NX, Lexus RX, Toyota 4Runner, Toyota Camry, Toyota Corolla, Toyota Tacoma and Toyota Tundra. General Motors Company receives four segment awards for Buick Encore, Chevrolet Equinox, Chevrolet Traverse and Chevrolet Tahoe. BMW AG receives two segment awards for BMW X1 and BMW X6.

The 2024 U.S. Vehicle Dependability Study is based on responses from 30,595 original owners of 2021 model-year vehicles after three years of ownership. The study was fielded from August through November 2023.

 

[Area 51]

We focus too much on the failures vs how they actually quantify considering production and acceptable failure rates.

 

[trek805]

Honda is the shocker. I expected Honda close to top.

 

[Esquire]

According to all the YouTube "experts," every single Toyota / Lexus manufactured in the last two years has self destructed with a fiery end within 3 mos. or 3,000 miles of ownership, whichever comes first. And Toyota / Lexus will be bankrupt and closed completely down by the end of the business day.....

So, based on this, I presume Lexus / Toyota taking the No. 1 & No. 2 spots are clearly in error.....

 

[trek805]

According to all the YouTube "experts," every single Toyota / Lexus manufactured in the last two years has self destructed with a fiery end within 3 mos. or 3,000 miles of ownership, whichever comes first. And Toyota / Lexus will be bankrupt and closed completely down by the end of the business day.....

So, based on this, I presume Lexus / Toyota taking the No. 1 & No. 2 spots are clearly in error.....

Huge error.... shame on you JD Power and Assoc.!!!!

 

[Area 51]

Huge error.... shame on you JD Power and Assoc.!!!!

Those reports are before the engine fiasco.

 

[jnsplace]

Honda is the shocker. I expected Honda close to top.

Honda was closer at one time. The fact that they and Nissan are looking at a partnership doesn't surprise me.

 

[TakaraLC]

What metrics are included in this analysis? Most of these rankings are useless because it measures all complaints with out a severity filter or ranking. Like a total engine failure and rock chipping windshield are considered to be equivalently serious complaints.

I suspect this list is similar to this since top complaint is about tires not lasting long enough, which is not a vehicle dependability but a driver behavior thing.

 

[APIOQM]

I’m highly dubious of these rankings.

 

[jenos96]

More anti-ev propaganda!

 

[Markarian421]

What metrics are included in this analysis? Most of these rankings are useless because it measures all complaints with out a severity filter or ranking. Like a total engine failure and rock chipping windshield are considered to be equivalently serious complaints.

I suspect this list is similar to this since top complaint is about tires not lasting long enough, which is not a vehicle dependability but a driver behavior thing.

Or needing new tires. A heavy vehicle with lots of torque (like a BEV) is going to need new tires pretty often.

Consumer Reports’ reliability ratings are also not perfect, but they tend to be much closer to reality than J.D.Power.

 

[Markarian421]

And Consumer Reports’ third most reliable vehicle is a PHEV…

 

[Area 51]

Something to keep in mind regarding the V6 engine fiasco:
Single data point regarding failure analysis, bad stuff left in the engine during manufacturing processes.
Result, complete engine failure on many engines.
A clear and well defined manufacturing process error, not design.
So root cause, cleat x many engines.
Not near as bad as everyone likes to make out for click bait and gaining viewer points.

 

[TakaraLC]

Something to keep in mind regarding the V6 engine fiasco:
Single data point regarding failure analysis, bad stuff left in the engine during manufacturing processes.
Result, complete engine failure on many engines.
A clear and well defined manufacturing process error, not design.
So root cause, cleat x many engines.
Not near as bad as everyone likes to make out for click bait and gaining viewer points.

Weren’t all problematic V6 engines manufactured in Toyota’s US factory? Imo it is a factory related incompetence more than a general manufacturing process issue.

 

[Marinna]

https://www.jdpower.com/business/press-releases/2024-us-vehicle-dependability-study-vds

• Electrified vehicles more problematic than others: Owners of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) experience more problems than owners of gas-powered and hybrid vehicles. BEVs are most troublesome (256 PP100), followed by PHEVs (216 PP100). Hybrids (191 PP100) and gasoline vehicles (187 PP100) fare significantly better. At three years of ownership, tires are a sore spot for BEVs, with 39% of owners saying they replaced tires in the past 12 months—19 percentage points higher than owners of gas-powered vehicles.
• Toyota Motor Corporation wins most segment awards: Toyota Motor Corporation’s nine segment awards is the most received by any automaker since 2017 when the Japanese automaker received 10 awards.
• The most improved brands: The top three brands showing the greatest improvement in the number of problems are Porsche (33 PP100 improvement); Mercedes-Benz (22 PP100 improvement); and Toyota (21 PP100 improvement).

Highest-Ranked Brands​

Lexus ranks highest overall in vehicle dependability for a second consecutive year, with a score of 135 PP100. Among premium brands, Porsche (175 PP100) ranks second and BMW (190 PP100) ranks third.

Toyota ranks highest in the mass market segment, with a score of 147 PP100. Buick (149 PP100) ranks second, while Chevrolet (174 PP100) and MINI (174 PP100) each rank third in a tie.

The parent corporation receiving the most model-level awards is Toyota Motor Corporation with nine: Lexus ES, Lexus IS, Lexus NX, Lexus RX, Toyota 4Runner, Toyota Camry, Toyota Corolla, Toyota Tacoma and Toyota Tundra. General Motors Company receives four segment awards for Buick Encore, Chevrolet Equinox, Chevrolet Traverse and Chevrolet Tahoe. BMW AG receives two segment awards for BMW X1 and BMW X6.

The 2024 U.S. Vehicle Dependability Study is based on responses from 30,595 original owners of 2021 model-year vehicles after three years of ownership. The study was fielded from August through November 2023.

View attachment 21863

This is per-brand. If you do per/model and per-class, Land Cruiser and GX550 is going to be the the top with negligible differences. All other vehicle in the class - Wrangler, Bronco, G-Wagon, Defender, Rivian, even widen it to Tahoe, Suburban, Yukon, or Escalante you won’t find a dependability match. The only few that might beat LC are probably other LC like J300/J76, 4-Runner and Outback, due to their simplicity and conservative design.

 

[Marinna]

Weren’t all problematic V6 engines manufactured in Toyota’s US factory? Imo it is a factory related incompetence more than a general manufacturing process issue.

It actually is NOT factory related incompetence but general manufacturing issue. If you want to control the quality in good standard like Toyota you wouldn’t want to allow each factory do their own thing. Plus these machines are highly computerized these days, it is all driven by the same computer program on the production pipeline.
There is a YouTube video talking about detailed failure analysis from Toyota. I couldn’t find it now but I am convinced that they have root cause that specific issue, which has nothing to do with Land Cruiser’s hybrid Turbo engine.

 

[Area 51]

It actually is NOT factory related incompetence but general manufacturing issue. If you want to control the quality in good standard like Toyota you wouldn’t want to allow each factory do their own thing. Plus these machines are highly computerized these days, it is all driven by the same computer program on the production pipeline.
There is a YouTube video talking about detailed failure analysis from Toyota. I couldn’t find it now but I am convinced that they have root cause that specific issue, which has nothing to do with Land Cruiser’s hybrid Turbo engine.

""manufacturing issue.""
Precisely correct, a process issue left out.
Not materials or design issues Which is a big plus in this case.