Hesitation On Acceleration--2012 RX 350
#61
Driver School Candidate
I owned a 2012 RX350 and had a problem with the transmission surging while accelerating. Took it to the Lexux dealer and they reset the shifting pattern but it never resolved the problem. I now own the 2013 RX350 and it does the exact same thing. Since two cars have the identical behavior I have chalked it up as a normal characteristic on the car. With that being said I have never owned a car that surges during the shifting process. I am writing this as I am waiting for the Lexus service department to fix a minor problem. I just spoke to my service advisor who has been here for many years and she verified that the surge is normal on the RX350. While I don't agree that this should happen I don't believe there is anything any Lexus dealer can do to resolve the issue. The dealer I am at is Wilde Clarke Lexus of Sarasota and they are one of the top rated dealers in the US. Can't say enough good things about them.
#63
#64
This unresolved hesitation issue is really starting to turn me off to the RX350.
I am considering trading my '08 400h in on a 2013 RX350 because I really do not put enough miles on my vehicle to warrant the extra cost of the hybrid. But, sounds to me the only way to really avoid this is to pay the big bucks and get the hybrid. It's enough to make me check out the Murano LE Platinum Edition.
I am considering trading my '08 400h in on a 2013 RX350 because I really do not put enough miles on my vehicle to warrant the extra cost of the hybrid. But, sounds to me the only way to really avoid this is to pay the big bucks and get the hybrid. It's enough to make me check out the Murano LE Platinum Edition.
#66
I have a friend who had an '03 Murano and I shared this DBW saga with him. He NEVER experienced it in nine years.
He just traded it on a 2012 LE Platinum Edition a few weeks ago and is bringing it by tomorrow. We'll see if his '12 does it.
He just traded it on a 2012 LE Platinum Edition a few weeks ago and is bringing it by tomorrow. We'll see if his '12 does it.
#68
The DBW system is not A system; it is a type of system. Toyota/Lexus uses approximtely 1.7 volts at idle and about 3 volts at full throttle. FORD uses about 3 volts at idle and about 8 volts at full thrrotle; hence, FORD is better controlled and not so "jittery". Other manufacturers use whatever voltages their engineers deem workable and it varies quite a bit.
Make your own mind up if the DBW problems have totally been solved by Toyota by putting a
brake override over the DBW system so it cannot stick on. That is the only change they made, and they DON"T admit to any liability for stuck throttles; and apparently are not dealing with your "lagging" throttles. I have adjusted to the fact that it takes off much as a Toyota Forklift does and I anticipate ahead of it and adjust accordingly!!!!
#69
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Time for education again I guess:
The DBW system is not A system; it is a type of system. Toyota/Lexus uses approximtely 1.7 volts at idle and about 3 volts at full throttle. FORD uses about 3 volts at idle and about 8 volts at full thrrotle; hence, FORD is better controlled and not so "jittery". Other manufacturers use whatever voltages their engineers deem workable and it varies quite a bit.
Make your own mind up if the DBW problems have totally been solved by Toyota by putting a
brake override over the DBW system so it cannot stick on. That is the only change they made, and they DON"T admit to any liability for stuck throttles; and apparently are not dealing with your "lagging" throttles. I have adjusted to the fact that it takes off much as a Toyota Forklift does and I anticipate ahead of it and adjust accordingly!!!!
The DBW system is not A system; it is a type of system. Toyota/Lexus uses approximtely 1.7 volts at idle and about 3 volts at full throttle. FORD uses about 3 volts at idle and about 8 volts at full thrrotle; hence, FORD is better controlled and not so "jittery". Other manufacturers use whatever voltages their engineers deem workable and it varies quite a bit.
Make your own mind up if the DBW problems have totally been solved by Toyota by putting a
brake override over the DBW system so it cannot stick on. That is the only change they made, and they DON"T admit to any liability for stuck throttles; and apparently are not dealing with your "lagging" throttles. I have adjusted to the fact that it takes off much as a Toyota Forklift does and I anticipate ahead of it and adjust accordingly!!!!
#70
Driver School Candidate
Time for education again I guess:
The DBW system is not A system; it is a type of system. Toyota/Lexus uses approximtely 1.7 volts at idle and about 3 volts at full throttle. FORD uses about 3 volts at idle and about 8 volts at full thrrotle; hence, FORD is better controlled and not so "jittery". Other manufacturers use whatever voltages their engineers deem workable and it varies quite a bit.
Make your own mind up if the DBW problems have totally been solved by Toyota by putting a
brake override over the DBW system so it cannot stick on. That is the only change they made, and they DON"T admit to any liability for stuck throttles; and apparently are not dealing with your "lagging" throttles. I have adjusted to the fact that it takes off much as a Toyota Forklift does and I anticipate ahead of it and adjust accordingly!!!!
The DBW system is not A system; it is a type of system. Toyota/Lexus uses approximtely 1.7 volts at idle and about 3 volts at full throttle. FORD uses about 3 volts at idle and about 8 volts at full thrrotle; hence, FORD is better controlled and not so "jittery". Other manufacturers use whatever voltages their engineers deem workable and it varies quite a bit.
Make your own mind up if the DBW problems have totally been solved by Toyota by putting a
brake override over the DBW system so it cannot stick on. That is the only change they made, and they DON"T admit to any liability for stuck throttles; and apparently are not dealing with your "lagging" throttles. I have adjusted to the fact that it takes off much as a Toyota Forklift does and I anticipate ahead of it and adjust accordingly!!!!
You are plainly better versed than I in the mechanical/technical issues that may or may not underlie this problem. It is troubling to me that thus far Lexus has not educated/commented even to the extent you have done here.
#71
The first situation of actually hearing the engine rev and the trans not connecting sounds like a different problem than the DBW lag I have mentioned; The combination of the two would be dangerous as mentioned; I would make sure your SA totally understands both of these as I did not until now!! Ascertain whether the engine rev is only when it is cold as most slippage is when oil is not flowing thru all ports of a trans; If it happens at all temps; certainly a problem but also one that your SA can sense when driven!!
#72
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The first situation of actually hearing the engine rev and the trans not connecting sounds like a different problem than the DBW lag I have mentioned; The combination of the two would be dangerous as mentioned; I would make sure your SA totally understands both of these as I did not until now!! Ascertain whether the engine rev is only when it is cold as most slippage is when oil is not flowing thru all ports of a trans; If it happens at all temps; certainly a problem but also one that your SA can sense when driven!!
#74
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Update. Just got my 2012 RX350 back from the dealer. Lexus technical advised the dealer to top up the transmission fluid and OVERFILL it by 200 mls and clear the computer memory. I am to report back to the dealer and let them know how it's going. Doesn't sound like a solution to me, but I'm keeping my fingers crossed.
#75
I(and some other users) are not talking about minor DBW lag, the issue is the engine revving but not engaging a gear for a few seconds... leads me to believe a tranny issue, not throttle
ETA: Oops, just saw your more recent post. Also, I am not experiencing the issue I described above
ETA: Oops, just saw your more recent post. Also, I am not experiencing the issue I described above