Prius (2010-12) :: EV Mode Won't Engage For First Several Miles
Sep 14, 2014
Have a 2014 Prius III. Was getting 50-60 mpg until i took it in for the 5k mile service. Immediately afterwards the mpg dropped to 43-50 mpg. It seems when the car is cold, it will start in EV mode for a few seconds and then the engine will kick in and it will not enter EV mode for the first few miles even with the battery 80% charged, driving under 20 mph, a/c off and keeping the Hybrid system indicator in what should be the EV range.
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Maintenance Mode is useful for running the engine continuously without it shutting off, such as when you do a coolant drain and fill and want to purge air out of the cooling system. This thread was created to clarify the procedure for engaging Maintenance Mode on the G3 Prius after attempting to do it according to the Prius service manual and finding that the manual does not clearly describe or include all the required steps.
Perform the follows steps in less than 60 seconds to engage Maintenance Mode for the G3 Prius.
Begin with the car and all accessories turned off.
Set the parking brake.
With the car in Park, and your foot off the brake pedal, turn the Power Switch "On" by pressing it twice.
With the car in Park, and your foot off the brake pedal, fully depress the accelerator twice.
Step on the brake pedal and use the shift lever to shift from Park to Neutral.
With the car in Neutral, and your foot off the brake pedal, fully depress the accelerator twice.
Step on the brake pedal and press the Park switch/button to shift from Neutral to Park.
With the car in Park, and your foot off the brake pedal, fully depress the accelerator twice.
Check that "Maintenance Mode" is displayed in the multi-information display.
Step on the brake pedal and then press the Power Switch to start the engine.
Important: DO NOT drive the car in maintenance mode to avoid damage to the transaxle.
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I've had my 2009 Prius II for about a year now and I have NEVER been able to turn on the accessory mode. I followed the manual and put the smart key in the slot and pushed the power button while keeping my foot off of the brake pedal but I get NO RESPONSE. I tried holding the power button down, pushing it just once, and pushing it repeatedly. I've successfully engaged accessory mode on a similar interface before (on a hybrid Highlander) with no problem.
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Just recently I"ve noticed my Pri-v is taking longer, and not as often switching to EV. All these observations are after the car has been fully warmed up and driven for several miles with a sufficient battery charge. Previously it would always switch to EV at 43mph when letting off the accelerator.......and I could keep it going usually till about 45.... A quick let of the accelerator would almost always accomplish this. Recently it has not been consistent...a few times not even shutting off when the car is stopped. The car has about 88,000 on the odometer. I've always noticed when it does go from ICE to EV, the transition is not a smooth too. That I"m guessing is the transmission fluid?
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Hard to put it all in a title. I have 149K miles on our 2009. The warranty expires in 1000 miles. I've noticed recently that I can no longer engage the ev mode with the ev mod. I always get a "cannot change into eve mode" message on the MFD. It used to be that I could do it before the engine started or after all warm up cycles were complete.
Now, when first powering on, ev mode won't engage before engine start and there is no MFD message. After warm up is complete, the message appears on the MFD whenever I try to change to EV mode.
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I have noticed that my 2008 Prius does not always engage EV mode (after I push the EV button) when the battery is green (nearly fully charged) and speed is well below 45 km/hr. Message displayed is "switching to EV mode is invalid now". So it seems there are factors at play other than the speed and the level of traction battery charge.
What these are? Is battery temperature monitored? Will the operation of the air conditioner affect it? Most times it doesn't but I wonder if under certain circumstances it might.
I use it at times if I am going up a slow speed incline, often from a standing start, knowing that there will be plenty of opportunity to recharge shortly after.
Weather here is pretty warm- around 30C maximum during the day.
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How many miles can be driven after the computer tells you have zero miles left to empty? Or rather how many gallons do you think is left in the tank after the computer says you're empty?
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When in EV mode, there are times that I approach a hill where I want to be in pure HV mode, so I switch to HV just before reaching the hill, and the system appears to switch over. However, the EV miles continue to drop as I proceed up the hill. Is this normal, or should I be switching much earlier?
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Ok, I know it's a confusing post title. Bear with me the steps to reproduce:
Deplete all EV range and Prius goes into HV mode
After engine warms up, skillful use of the accelerator can keep the system in "EV" mode by not going to the RIGHT of the throttle indicator. I have been able to drive a few miles in HV mode, but only using EV without the ICE firing up.
What I noticed is that those pseudo EV miles are counted against the HV range and NOT the EV range. I worked hard to get that extra mile of EV. It would be nice if it didn't count against HV!
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I have a concern about my 2010 Prius V(five). I've noticed some issues lately that may all tie in to one big problem.
1. My ev mode will not work at all. My battery will be fully charged and not in "B" mode. Turning car off and on will not work.
2. Engine will not turn off when coming to stops. Mind you when the battery is above 3 lines.
3. Throttle response feels like it's in PWR mode(super sensitive) but the engine is leggy. If I floor it for a sec the RPMS are super slow to come down.
4. The Eco line is quick to go in PWR portion and I'm not pushing it any harder than I was before all of this started. It seems like when I push the gas it skips the electric and automatically pulls from the engine.
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As I was trying to use up as much E10 before refueling with E0 I was watching the miles to empty and noticed what seems strange, to me. When driving in EV mode, with the ICE off the miles to empty kept falling! Apparently miles to empty somehow includes EV miles. So I checked the MTE both before and after charging and saw no change which indicates EV miles don't count. So now I would like to know what does MTE mean?
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I have a Toyota Prius 2012 type 2 and I did install a vip 3200 Plus alarm system. My question is that why is the automatic lock not working? I park the car, get out, and close the door but do not lock the car. After 5 minutes, the automatic lock system is not engage or the alarm system does not arm.
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I cannot lock my prius hatch door. It will shut but the lock does not engage. Apparently the lock is broken. Can I order the part and have a mechanic friend do it for me as Toyota want to charge $200 to install it. The part from Toyota is $210.
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We use the EV mode when going home for last quarter mile because its mostly downhill so for fun have the electric motor tow us home. What is "quirky" about this mode is sometimes EV won't engage even if big battery is full, gas engine is warmed up.
We know that going faster than 25mph cancels the EV and that short trips prevent EV from engaging. Other times EV just cancel citing excessive speed when we are going 10-15mph. So this is no problem but wondered what the parameters are for EV engaging and dis-engaging.
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My 2010 has no ACC mode. Took it to dealer to have key fob programed and dealer could not put car into ACC mode.
I'm second owner. This is not an issue of how to put in ACC mode. It does not enter ACC.
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I didn't see anything in my search. Why is EV mode not available sometimes? i know for sure it isn't available when i start the car. But sometimes else it is not available. And I don't mean "excessive speed" or "low battery"
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So there I am, showing off my new car (1 week old) to my family, and I'm bragging how I can go up to 25 MPH while in EV mode.
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When I start my car at the beginning of the day I can never put my prius in EV mode even when the battery (battery at half) is not in low.
Also, as I am driving down my small street for about a few mins then it let me put in EV mode. When I do put it in EV mode, I only can drive up to 10mph and it cuts off.
This is when I'm already been driving for a good period of time like 30 mins. For example when coming from work my battery is charged pretty well because I'm on the freeway for about 24 miles. I put my prius on EV mode and I'm able to go up to 25 mpg. How come I am able to go 25mpg in EV mode after being in the prius for at least 30 mins and when in the morning in EV mode only at 10mpg?
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I am having problems with the car disengaging from park even with the brake depressed, so I decide to remove the shifter cover and will doing that i lost/broke the cover strip and magnets so now my tiptronic will not engage. Where I can get them from and what could cause the shifter to lock up in park. It releases after a while but you have to depress and release the brake pedal and pull on the shifter at the same time.
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Have owned this car for 8 days and the wife is driving her normal traps, only shows having used 1/2 tank and over 240 miles, something must be wrong with this thing, must take back to dealer,
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I drive about 25 miles each way to and from work. Almost since the day I've purchased the vehicle (6 months), I've learned and used the Pulse and Glide technique daily and I've become very good and comfortable with it. I usually get 65mpg on my way to work and 70+ on my way home.
However in the last couple of days, I've notice a significant drop down to low 50's with no change in my driving habits, route, or tire pressure. Also no work or maintenance has been done to the vehicle. Upon closer investigation, I've noticed that sometimes, well after the warmup stages, when I glide, the ICE stays on and the instant MPG meter only reads 50mpg instead of the infinity mpg it usually does.
It doesn't happen every time I glide, just sometimes. For example this morning after driving the entire 25 miles to work, the ICE stayed on during my last glide of the commute. At first I thought that maybe I didn't let my foot off the accelerated long enough, but further attempts with longer delays resulted the same result of the ICE not shutting off. Should I have the dealer look at the car? Am I missing something?
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