Toyota recalls and related issues: BusinessWeek-Media owes Toyota an apology
#17
Before you guys say this is old news, it is not. There are claims that the misplace floor mats may not be the only problem with Toyota and Lexus when it comes to Sudden Acceleration. The report go on to say that some owners have claim when it happened to them, they look down at the accelarator and it was not stuck to the floor mat. Now all eyes are on the drive by wire ECU, since Toyota started using DBW in 2002, Sudden Acceleration incidents have since double or triple.
Experts recommands when Sudden Acceleration or a runaway situation happens, try to shift the car in neutral and do not shut off the car. Also, do not hit the brakes, it will cause it to over heat and render it useless. Although it did mention that there are a few German cars that when your tap the brakes, it will cut off the throttle, anyone know which German cars does that?
http://abcnews.go.com/Blotter/Runawa...ory?id=8980479
Experts recommands when Sudden Acceleration or a runaway situation happens, try to shift the car in neutral and do not shut off the car. Also, do not hit the brakes, it will cause it to over heat and render it useless. Although it did mention that there are a few German cars that when your tap the brakes, it will cut off the throttle, anyone know which German cars does that?
http://abcnews.go.com/Blotter/Runawa...ory?id=8980479
as to those complaints, 6 NTHSA investigations and all of them ended up with driver error explanation.
Something like DBW failure would be easy to replicate actually and it would definetly not happen on only 2000 cars (out of tens of millions sold).
#19
Lexus Fanatic
iTrader: (20)
Additionally, because the Lexus has push button start, the operator must push the button for three seconds before the engine will shut off. A piece of info obviously and sadly not known by Officer Saylor.
there were tragic driver mistakes but no mechanical problem by audi or in this recent case, lexus.
despite salivating attorneys, hopefully lexus will not be harmed as much as audi was, mostly by the piece on 60 minutes, one of the worst pieces of journalism of all time.
#20
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Although it did mention that there are a few German cars that when your tap the brakes, it will cut off the throttle, anyone know which German cars does that?
http://abcnews.go.com/Blotter/Runawa...ory?id=8980479
http://abcnews.go.com/Blotter/Runawa...ory?id=8980479
Last edited by FKL; 11-03-09 at 11:50 PM.
#21
Pole Position
All car manufacturers have "unintended acceleration" issues, not just Toyota. See, the problem is not with the car or the DBW ecu. In over 99% of all claims, from owners of all manufacturers, the results were exactly the same. "NO PROBLEM FOUND with said vehicle". Drivers are at fault in nearly ALL cases involving run-a-way vehicles. In a panic, the driver may think he's got all his force on the brake, when in fact, it's on the throttle. Rather than fess up to an "at fault" accident, they blame the car. "Oh.. it wasn't my fault, the car accelerated suddenly and at the exact same time, the brakes failed" Yea, right!! It's so easy to blame the car and not yourself but guess what? Upon further investigation of the car, it's the same issue over and over again. "NO PROBLEM FOUND with said vehicle"
Last edited by IS350jet; 11-04-09 at 04:46 AM.
#22
Lexus Test Driver
Thread Starter
Yes, when the brake switch is activated (brake pushed) when the throttle is also down, the ECM initially cuts power to the throttle and if you continue to do so, will ultimately cut the throttle altogether. You can brake torque the car from a stop as VW has programmed the car to allow throttle IF the brake was applied first. But from Gas to brake, the system activates. I know all VWs since 2001 have done this (when DBW was being standardized across the range). All Audi, BMW, Jaguars, and MBs with DBW as well. A bit unbelievable that Toyota's DBW system don't have this as I thought it was standard practice with all DBW systems...It's only a software protocol, as the brake pedal tells the ECM to cut throttle as soon as it is pushed when the cruise control is on...
#23
Pole Position
Yes, when the brake switch is activated (brake pushed) when the throttle is also down, the ECM initially cuts power to the throttle and if you continue to do so, will ultimately cut the throttle altogether. You can brake torque the car from a stop as VW has programmed the car to allow throttle IF the brake was applied first. But from Gas to brake, the system activates. I know all VWs since 2001 have done this (when DBW was being standardized across the range). All Audi, BMW, Jaguars, and MBs with DBW as well. A bit unbelievable that Toyota's DBW system don't have this as I thought it was standard practice with all DBW systems...It's only a software protocol, as the brake pedal tells the ECM to cut throttle as soon as it is pushed when the cruise control is on...
#24
Lexus Test Driver
Thread Starter
It is a valuable safety feature, to be sure. The problem, though, is cars with DBW systems aren't actually having issues with unintended acceleration. There are "driver" issues, not electronic/mechanical malfunctions. I could still see this safety feature working in extremely rare situations, though.
#30
Lexus Test Driver
Thread Starter
Here is a letter from a safety group in response to Toyota's letter to its customers regarding its documented sudden acceleration problem:
"Some of this is actually true. The agency has not found a vehicle-based defect that is causing unwanted acceleration. It doesn’t mean there isn’t one – it just means that the agency hasn’t found it. By any standard, the agency investigations are far from the thorough and can be accurately described as cursory by anyone with a passing understanding of defect investigation.
***
In other words NHTSA:
Talked to owners who complained;
Drove the petitioners vehicle and didn’t experience SUA;
Asked Toyota what, if any, problems existed (none of course);
Found that the throttle control system may have had a problem but couldn’t find a cause;
Had limited information to work with;
Faced with limited resources and other more easily solvable safety issues, dropped any further investigation.
The most thorough of the government investigations appears to be the agency’s Vehicle Research & Test Center analysis of a 2007 Lexus ES350. This investigation, cited by Toyota above as evidence of the lack of a defect, suggests otherwise. Here’s what else the report stated:
“To comprehend the statistical significance of the probability for this event to occur, a survey was sent to a sample size of 1986 registered owners of a 2007 Lexus ES-350 requesting information regarding episodes of unintended acceleration. NHTSA received 600 responses for an overall response rate of 30.2%. Fifty-nine owners stated they experienced unintended acceleration. Thirty-five of those responding also reported that their vehicles were equipped with rubber Lexus all-weather floor mats and several commented that the incident occurred when the accelerator had become trapped in a groove in the floor mat. Interviews with owners revealed that many had unsecured rubber floor mats in place at the time of the unintended acceleration event, which included in some cases unsecured rubber floor mats placed over existing Lexus carpeted mats.”
The report is silent on several key issues, including owners who did not comment that the accelerator pedal was trapped in the groove of an all weather floor mat. And what of the remaining 24 who didn’t have all weather floor mats? "
http://product-liability.lawyers.com...on-Defect.html
The big question is what cause the sudden accelartion of the 40% of owners who did not have the all weather mats.
"Some of this is actually true. The agency has not found a vehicle-based defect that is causing unwanted acceleration. It doesn’t mean there isn’t one – it just means that the agency hasn’t found it. By any standard, the agency investigations are far from the thorough and can be accurately described as cursory by anyone with a passing understanding of defect investigation.
***
In other words NHTSA:
Talked to owners who complained;
Drove the petitioners vehicle and didn’t experience SUA;
Asked Toyota what, if any, problems existed (none of course);
Found that the throttle control system may have had a problem but couldn’t find a cause;
Had limited information to work with;
Faced with limited resources and other more easily solvable safety issues, dropped any further investigation.
The most thorough of the government investigations appears to be the agency’s Vehicle Research & Test Center analysis of a 2007 Lexus ES350. This investigation, cited by Toyota above as evidence of the lack of a defect, suggests otherwise. Here’s what else the report stated:
“To comprehend the statistical significance of the probability for this event to occur, a survey was sent to a sample size of 1986 registered owners of a 2007 Lexus ES-350 requesting information regarding episodes of unintended acceleration. NHTSA received 600 responses for an overall response rate of 30.2%. Fifty-nine owners stated they experienced unintended acceleration. Thirty-five of those responding also reported that their vehicles were equipped with rubber Lexus all-weather floor mats and several commented that the incident occurred when the accelerator had become trapped in a groove in the floor mat. Interviews with owners revealed that many had unsecured rubber floor mats in place at the time of the unintended acceleration event, which included in some cases unsecured rubber floor mats placed over existing Lexus carpeted mats.”
The report is silent on several key issues, including owners who did not comment that the accelerator pedal was trapped in the groove of an all weather floor mat. And what of the remaining 24 who didn’t have all weather floor mats? "
http://product-liability.lawyers.com...on-Defect.html
The big question is what cause the sudden accelartion of the 40% of owners who did not have the all weather mats.