IS F (2008-2014) :: Sluggish Downshift When Car In Auto Mode
Oct 31, 2014
Just left my lexus dealer after getting an oil change. When I go WOT with the car in auto mode (whether or not in sport mode), it is very sluggish to downshift and when it finally does downshift, will accelerate very slowly above 4,000 rpm...almost no power.
In manual mode, no issue, accelerates great. All fluids are fine and no CEL. Gonna take it back to dealer in a few minutes.. Dealer has no clue what would cause the issue, they did not reset the ECU or do anything other than change oil and filter.
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So i noticed, when in auto mode, whether sport mode is on or off, it does the same thing. If i floor it from a stand still, the transmission takes noticeably longer to go from 1st into 2nd then from 2nd to 3rd, 3rd to 4th, etc. 1st to 2nd takes like a good second, kinda like this:
1st VROOOOM.....................2nd VROOOM..3rd VROOOM..4th.....etc..
If I drive it in manual mode, then it shifts just as fast. So this only happens in auto.
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I recently traded in my 2013 Audi TTRS in a very limited edition color. For my 2008 Lexus ISF... With 71k Miles. And I feel as if the car is very sluggish and up shifts are slow even with sport mode on! My buddy has an ISF as well and he even said mine shifts slower than his. I was wondering if maybe the previous owner skipped a few key maintainence things to cause such an issue. And yes I know how to drive a care, yes it's in sport mode and yes the vehicle is warmed prior to stupidity. The last recorded maintenance was at 60K miles.
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2016 IS300.
I've had it for 4 days now, and I've never had a brand new car so maybe this is a moot point. But the car simply feels heavy and sluggish. I'm at a little over 300 miles and the car just doesn't have much zip compared to my 2010 IS. Also, when I had the clear bra done at Lexus they gave me an identical loaner (2016 IS300 AWD) with around 800 miles and it felt totally different.
I remember with my 2010 reading that the car has to "learn" how you drive, etc. With my 2016 it'll go from a dead stop, them a couple of shifts in it drops to a super low gear. Even in sport mode it feels sluggish. In ECO mode... Well, lets just say that feels laughable.
Why was my loaner (which was identical to my new car) much zippier in the normal mode? Is this something I should be concerned about? The car runs fine, just no zip (yet).
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So I was driving in a busy part of town today with a lot of stop and go traffic. Then this previous previous generation E class pulled up next to me and started reving it, his exhaust sounds aftermarket. I am the kind of guy that never race or drive fast on the streets, so I just ignore him. Then when it's green he pulled ahead and maintain at 30 mph or so, when I caught up he started reving again. He had his emblems shaved so I cant tell which model it was
So I was like what the hell...if he is a E350 or E500 he stands no chance, and if he is a E55 AMG the worse case it will be a close match. Different story if he is a E63, but it didnt sound like one. Since I was cruising in AUTO before, I must be at 5th or 6th. So I went into Manual, press the sport button and start downshifting......it took forever.....I was literally just waiting for it to go to 2nd before slamming on the gas...since the street in front of us is running out of room and will reach another red soon. Before I could get to 2nd, he already took off after cruising with me for a bit. When I finally got to 2nd and the engine growl started, I flew past him and let him hear the borla but we already hit the red...he turned right. I just thought I missed the fun.....
It was a hot day in LA...so the engine oil is well warmed up. And since we have so many gears, I often times find downshift sluggish and esp it cant skip gears..it has to go in sequentially. I have little to complain about the upshifts, but downshift..am I missing something here? How to speed up the downshift?I think dual clutch is way faster in both up and down....
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Very strange issue today. While driving in stop and go traffic (Auto Sport Mode). I noticed the car was starting in 2nd gear. Next stop I switched over to M and it would still not downshift to 1st even with the paddles or shifter. Once I started moving I could manually downshift just fine. Car seemed to shift normal. Eventually got the VSC / CEL . Here are the codes:
Pending:
PO301 - CYL 1 Misfire
C3101 - no details
C3411 - no details
C3000 - no details
Historical:
P0A11 - DC/DC Converter Enable circuit open
All of the codes cleared and did not reappear while idling. I have not driven the car yet. It also goes back into 1st now while stopped although I haven't tested coming to a stop. Will do that tomorrow
One thing to note that was out of the ordinary today. For some reason I was absolutely freezing (which should be impossible this time of year in SC) so I turned the AC off before this started and the idle dropped very low (400 - 500) which I seem to remember being normal but I almost never run with my AC compressor off unless I'm in race mode and I'm usually not putting along in stop and go traffic if that is the case. Not sure if this has anything to do with it but perhaps the low idle caused a voltage issue which tripped the codes.
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My 2004 Touareg V10 TDI drives like something's not just quite right, although hard for me to put my finger on. Essentially it feels sluggish, like it doesn't downshift to accelerate as quickly as it should, and like the automatic shifting is slightly jerky. This stuff is all even more noticeable at slower speeds and going up hill, but I think it's true even on city streets.
It's happened a few times, going up a fairly steep hill, that it seems to lose power and I can't get it over 20 or 25 mph even flooring it. Then when I turn the vehicle off and then back on, it can go more or less like normal again. Still, "normal" feels to me like something less than it used to be. I've recently changed the oil and all the filters (air, oil, fuel).
The dealer's service department says they can't find anything and the computer is not giving any error codes, but I know that it's not driving right.
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My AC always defaults to Recirculation mode the first time I use it after starting the car even though Auto mode is off.
Can I change this to default to fresh air mode?
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I've owned my 2011 IS-F for a couple of month now. I know the Sport Mode give the car crisper throttle response and it shifts quicker. Does the Sport Mode do anything else?
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I have a 2008 ISF with a k&n intake and QTP exhaust cutouts. About a month ago my car died on me and when I restarted it, the car went into limp mode. The "check vsc" light is on along with the traction light and CEL. I took it to my mechanic and he said I needed to replace the MAF sensor and I did. 100 miles later the car went into limp mode again. So I took it to a mechanic that knows Lexus vehicles very well apparently, and he diagnosed it to be my intake. So he replaced it with the stock intake. Now I've driven another 100 miles and the problem has come back again. The car is throwing all kinds of codes when I connect the obd2 scanner to it.
It is throwing p0031, p0037, p0051, p0057, p0102, p1360, p1361, and a whole bunch more.
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Is there a way to switch the down and up shift in "M" mode. ( backwards for up shifts and forwards for downshifts).
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As the title says, the auto-dimming mirrors are working intermittently, I'm assuming a problem with the sensor in the mirror it's self?
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GTI with DSG has delay in downshift (in D mode), especially with lower gears and speeds. I find it very annoying when I try to suddenly accelerate and the car does not move for few seconds-- RPMs go high up, engine is making noise but car does not move immediately. I have noticed this mostly in traffic when i need to change a lane and accelerate right away.
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Been researching exhausts a bit and getting information about the full PPE header and PPE Dual mode exhaust to review?
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As I pulled into a parking lot last night, my "check VSC" warning message came on. Simultaneously, the Parking Brake light, ABS light, Traction Control, and VSC lights came on. The car did not go into limp mode though, and the car seems to operate as normal (even when going WOT).
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So I have read that you can downshift while in D or S mode with the paddle shifters. Is this true?
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When driving in Sports mode only there is a hard downshift from 3rd to 2nd and or 2nd to 1st gear. It is very apparent when stepping on the brake to slow for a turn, the transmission downshifts causing the car to lurch forward (just like if you were to downshift badly on a manual). My car is a recent build 3/07. The car is undriveable in Sports mode at city speeds.
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Car is:
1) Warmed up
2) At a standstill
3) In manual mode, 1st gear
4) Traction control is on/normal
5) Sport mode is on/off (doesn't seem to matter for this example)
How to verify:
1) Hit gas, more than 3/4 down
2) Shift above 5500rpm
3) As transmission up-shifts a drive belt squeal is heard.
4) Car otherwise accelerates normally.
This happens on two IS-Fs I've driven, a 2009 and a 2010, with or without the AC on. Is this a common issue? If so, what belt is slipping?
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I have 2009 Corolla XRS 5 speed automatic. I have 10,500 miles on it and I have had this transmission issue since I got the car. At times, while accelerating onto highways the car does not downshift. The car stays in 3rd gear up until 4,000 RPM. I can shift it by putting it in sport mode and shifting manually. It only does it sometimes but it does not seem normal.
Took it for my 1st service visit dealer said no codes came up on the computer and maybe it needed to be broken in. Went for 2nd service dealer told me no codes and no problems. I then wrote a letter to Toyota under the lemon law since it had 2 failed attempts at fixing it. They contacted me and said this may be normal. I do not see how it is normal.
Is it because it is a four cylinder that it has these problems? Usually it shifts correctly but I feel there is a defect but they said the computer would have codes stating problems and it does not.
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I have a 2010 S with an auto trans and 68,000 miles. I've never replaced the fluid or filter. Over the last 10,000 miles or so, I've noticed the following in regards to shifting.
I will being on a merge ramp to the highway rolling along and waiting to pull out into the flow of traffic. I'll be traveling along at a constant speed, say 30 mph, with constant pressure on the throttle waiting for my opening in traffic. I will see my opening and floor it. That's when (sometimes) the car seems to get very confused. It doesn't shift back right away, it lingers in 3rd (or OD) and picks up a tiny bit of speed. Then, it hesitates with no acceleration, and then roughly shifts to 2nd or 1st. It feels more like it forces itself into gear and, once in gear, it accelerates like it should.
The biggest issue for me is that this whole process takes about 3 or 4 seconds. That's not very long, but when you're trying to merge onto the highway or cut into traffic, 3 seconds is the difference between being safe and a close call.
Transmission fluid appears to be full, is a nice red color, and doesn't smell burnt.
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My girlfriend has a 2002 passat 1.8t with the tiptronic tranny... its not throwing a cel but while driving in regular drive mode it seems to have problems downshifting... not all the time but sometimes when you get on the gas and the tranny downshifts it slams* the whole car...
The only thing i can describe it as, is being in a manual car and just dropping the clutch in a lower gear with out giving it some gas to match the rpm's... brought the car to vw dealers and such but all say nothing is wrong and it is "normal"...
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