[vegascaddy]

Typical usable for a 2014 is about 12.5 kwh. 11 is definitely on the low side. Not actionably low all by itself, but that's not The Problem. That's a side-effect or consequential symptom of The Problem. The Problem is the PPR incidents when PPR is not expected nor normal. Find the cause of the PPR (which is probably something like a weak cell group), and the low kwh output symptom will almost guaranteed vanish as well.

Now I'm confused. You previously stated that "it's not the 26-27 mi. range, it's the 11kWh available from the pack." Now you're stating the 11 kwh is not the issue and it's the PPR warnings. Please clarify so I can understand what to focus on.

 

[vegascaddy]

"The battery" isn't clear enough -- The 12v accessory battery would be reasonably covered by B2B. The traction pack that the vehicle drives with is Voltec Component.

So, just to clarify, the issues I'm having would have more to do with the traction pack under the separate Voltec warranty than for the battery itself?

 

[dannycamps]

So, just to clarify, the issues I'm having would have more to do with the traction pack under the separate Voltec warranty than for the battery itself?

Yes - the issues you are experiencing are related to the main high-voltage battery which is covered by the Voltec warranty. See a dealer and raise the issues. Your range and kWh loss warrants a look.

 

[Aseras]

When you go to the dealer you need to only talk about the Propulsion Power Reduced message. Talking about range, or the kWh or anything else is going to get you an eye roll and the brush off.

When dealing with GM, give them the smallest target possible. Give them pictures, whatever. print it out and tape it to the steering wheel if you have to. Otherwise if it's not right there when you go, you are going to get "couldn't reproduce problem".

 

[Norton]

... only talk about the Propulsion Power Reduced message. ....

When dealing with GM, give them the smallest target possible. .

+1
Say the least amount of words. But be stern and say you want it repair 'Because it ain't right'.

 

[vegascaddy]

FWIW, I was able to get nearly 33 miles on a 28 mile range/11kwh used yesterday so that was encouraging. Only difference was I drove easier (no speeding), no AC, and no radio. I also made sure the tire pressure was uniform for all 4 (@ ~ 35psi). But, the range is still only charging to 28 miles. Have not had any PPR messages this week but didn't drive the car that much either. At least my Voltec warranty will pick up at the end of the month where my B2B warranty leaves off to further evaluate these issues a little longer.

 

[Bill Step]

I'd up the air pressure on the tires to 40-42psi.use the radio,it draws hardly anything.you all highway?I'[m highway going to the cape,drive 60-65mph mostly,unless I'm trying for a new top speed record,,I get about 42miles on a charge,will try and remember to take a pic tonight.

 

[freshcut]

+1 on upping the tire pressure. I'm not sure on the ELR but the Volt recommends 38 psi. I tend to run between 40-44 on mine. Lately without heavy A/C usage I'm seeing estimates of 46-47 on my battery range. Also speed and quick starts/hard stops will kill your range. I find if I drive like Mr. Magoo I can get 50+ electric miles but I also find I get a lot of people passing me and getting annoyed at my slower starts. Driving "normal" gives me a consistent 40 miles or better when not using heat/AC.

 

[vegascaddy]

Update: After nearly 2 mos. of evaluation, I have come to the conclusion that my initial concerns were already answered early on by a few of the posters and the dealer: that the EV Range is determined by prior driving experience. It's quirky and I still don't know what the purpose of this is by GM but at least I know how it responds.

The average EV range on the ELR is ~ 34 miles on a single charge, so, if I drive hard, use up miles faster by having the AC on especially when idle (like during the summer), the miles showing up on the next day's EV Range will trend downward (as low as 26-27 miles), and if I drive easy, use the regen, go down hills, and get as high as 38 miles total from separate drives, the EV Range will trend upward (36 miles). I had only a couple PPR warnings in the last 2 mos. that popped on after the car was parked for a couple hours and then went off after about a minute and they haven't returned. The kWh used was between 10.1 and 11.4.

I would assume this is par for the course then?

 

[pianocaddie]

Update: After nearly 2 mos. of evaluation, I have come to the conclusion that my initial concerns were already answered early on by a few of the posters and the dealer: that the EV Range is determined by prior driving experience. It's quirky and I still don't know what the purpose of this is by GM but at least I know how it responds.

The average EV range on the ELR is ~ 34 miles on a single charge, so, if I drive hard, use up miles faster by having the AC on especially when idle (like during the summer), the miles showing up on the next day's EV Range will trend downward (as low as 26-27 miles), and if I drive easy, use the regen, go down hills, and get as high as 38 miles total from separate drives, the EV Range will trend upward (36 miles). I had only a couple PPR warnings in the last 2 mos. that popped on after the car was parked for a couple hours and then went off after about a minute and they haven't returned. The kWh used was between 10.1 and 11.4.

I would assume this is par for the course then?

It's not so difficult to understand: THE EV RANGE is a PREDICTION of the range you will attain, based on the PREVIOUS "x" number of miles of driving style. So...If you start with EV Range, then climbed a 34 mile mountain, you'll probably deplete the battery in (total WAG here!) in 18 miles. The next time you start the car after a full charge (8amp/12amp...NO DIFFERENCE), the EV range will say 18 miles, REGARDLESS of the power the battery holds.

Also, doesn't driving in 100f temps drop the EV range, even if the A/C is used minimally?

PS: Bump your OEM tires to 41-42...

 

[scottf200]

Update: After nearly 2 mos. of evaluation, I have come to the conclusion that my initial concerns were already answered early on by a few of the posters and the dealer: that the EV Range is determined by prior driving experience. It's quirky and I still don't know what the purpose of this is by GM but at least I know how it responds.

The average EV range on the ELR is ~ 34 miles on a single charge, so, if I drive hard, use up miles faster by having the AC on especially when idle (like during the summer), the miles showing up on the next day's EV Range will trend downward (as low as 26-27 miles), and if I drive easy, use the regen, go down hills, and get as high as 38 miles total from separate drives, the EV Range will trend upward (36 miles). I had only a couple PPR warnings in the last 2 mos. that popped on after the car was parked for a couple hours and then went off after about a minute and they haven't returned. The kWh used was between 10.1 and 11.4.

I would assume this is par for the course then?

Are you asking if PPR warnings are par for the course?
If yes, then see: https://gm-volt.com/forum/showthrea...-Miles-Estimate-Dropped&p=4615601#post4615601

 

[JuneBug]

The average EV range on the ELR is ~ 34 miles on a single charge, so, if I drive hard, use up miles faster by having the AC on especially when idle (like during the summer), the miles showing up on the next day's EV Range will trend downward (as low as 26-27 miles), and if I drive easy, use the regen, go down hills, and get as high as 38 miles total from separate drives, the EV Range will trend upward (36 miles). I had only a couple PPR warnings in the last 2 mos. that popped on after the car was parked for a couple hours and then went off after about a minute and they haven't returned. The kWh used was between 10.1 and 11.4.

I would assume this is par for the course then?

Yeah, the Guess-O-Meter is weird. Today I had to work, so I get in the fully charged Volt and it says I have 36 miles of electric range. There wasn't much traffic for some reason, so I drove like a little old lady. Pulled into my parking space at work and it said I have 35 miles of range! The energy screen showed I had traveled 2.7 miles and used 600Wh of power. This was with climate control off. Now if I drove it like this every day, I'm sure the estimated range would go up, but that's not practical. There was so much crazy traffic yesterday I had to drive more aggressively or else get run off the road.

 

[Aseras]

I put new tires on my ELR and the guessometer has no idea what is going on. I still get exactly the same mileage but my first few miles drop super fast, then the middle 1/3 doesn't move at all for 25 miles or so and then the green bars start dropping. My worst so far is 38, and I've still gotten up to 46.

Of course it could be that I've been paying attention way more than normal too.

 

[thehighat]

..... The average EV range on the ELR is ~ 34 miles on a single charge, so, if I drive hard, use up miles faster by having the AC on especially when idle (like during the summer), the miles showing up on the next day's EV Range will trend downward (as low as 26-27 miles), .... The kWh used was between 10.1 and 11.4.

So I bought a used 2016, non-perf, and I am having a similar experience.

In the first couple weeks I achieved between 35-44 miles ev range on battery alone.

I did push it hard a few times to time it's acceleration. And I also switched from 8A charging to 12A charging on the 120V portable wall charger, with one day charged on a public L2.


Now it consistently gets only 26-28 miles ev range before the battery is depleted. And it almost never over 11 kwh used.

So is this all normal?

The car has about 25k miles on it.

 

[Bill Step]

So I bought a used 2016, non-perf, and I am having a similar experience.

In the first couple weeks I achieved between 35-44 miles ev range on battery alone.

I did push it hard a few times to time it's acceleration. And I also switched from 8A charging to 12A charging on the 120V portable wall charger, with one day charged on a public L2.


Now it consistently gets only 26-28 miles ev range before the battery is depleted. And it almost never over 11 kwh used.

So is this all normal?

The car has about 25k miles on it.

how fast are you driving on the highway?I too,don't seem to get over 11Kwh to often.I'f I drive around 60mph,I get about 40miles out of it,but I'm stuck in traffic most of the time.btw,this time of year,cool mornings affect the range.

 

[thehighat]

how fast are you driving on the highway?I too,don't seem to get over 11Kwh to often.I'f I drive around 60mph,I get about 40miles out of it,but I'm stuck in traffic most of the time.btw,this time of year,cool mornings affect the range.

no something is very wrong with this car.

at first, about 12.5kwh used would show. then it fell to 11 in one month. in two months the most it can do is 9.5kwh used.

the app says it charges 13 kWh.

but after 9-9.5 it's depleted.




And with this low available kWh, I'm getting as low as 17 miles of range and a max of 25 miles.

when it was mid 12s used kWh, the car would do 40+ miles easy.


I'm even wondering if an over the air command via OnStar killed it. at a service visit they say there is nothing wrong. and they cannot replicate anything or see any error codes

 

[hellsop]

at first, about 12.5kwh used would show. then it fell to 11 in one month. in two months the most it can do is 9.5kwh used.

After which it switches to gas? Yes, that would be a problem. A reduction of actual power used before reaching a low-voltage threshold is an actual battery issue. "Miles" as a measure isn't useful, but you SHOULD be getting about 12kwh out of a full charge, regardless of how much you thrash it or how prodigal you are with the climate control.

I'm even wondering if an over the air command via OnStar killed it. at a service visit they say there is nothing wrong. and they cannot replicate anything or see any error codes

That did not happen.

 

[Aseras]

Yes something else is wrong. How are you tires? Have good alignment? Don't let them pigeon toe the car. EV and pigeon toe are bad. you want them practically parallel at any speed, fark whatever the book or specs say.

Aside from that, 12v battery? Are you still on the original? go get it tested, with a 100 amp load. if it drops, time to replace. You can also try disconnecting it and leaving it off for a bit to totally clear any long term trim codes or other weird stuff.

 

[thehighat]

at first, about 12.5kwh used would show. then it fell to 11 in one month. in two months the most it can do is 9.5kwh used.

After which it switches to gas? Yes, that would be a problem. A reduction of actual power used before reaching a low-voltage threshold is an actual battery issue. "Miles" as a measure isn't useful, but you SHOULD be getting about 12kwh out of a full charge, regardless of how much you thrash it or how prodigal you are with the climate control.

I'm even wondering if an over the air command via OnStar killed it. at a service visit they say there is nothing wrong. and they cannot replicate anything or see any error codes

That did not happen.

Yes, the actual power used before switches to gas - this is what has dropped.

Agreed. Got carried away in my assumptions about the cause - no OTA flash is even possible. Despite that, the service guys say there are no error codes and everything is running to spec.

The high voltage battery is no where near 12.5v, even after yet another day of testing after a full depletion / L2 charge cycle.

 

[thehighat]

Yes something else is wrong. How are you tires? Have good alignment? Don't let them pigeon toe the car. EV and pigeon toe are bad. you want them practically parallel at any speed, fark whatever the book or specs say.

Aside from that, 12v battery? Are you still on the original? go get it tested, with a 100 amp load. if it drops, time to replace. You can also try disconnecting it and leaving it off for a bit to totally clear any long term trim codes or other weird stuff.

Tires are practically new. Alignment is good. Pressure is good. I keep them at 35psi cold according to the sticker. I've read some people say to push it to 40psi. Have not tried that yet.

I don't know how old the normal car battery is. How would that effect the 17.1kWh pack?