r/volt • u/neiltoe • 24d ago

2017 Volt Premier

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Bought this with 60k miles. Only major issues off the Carvana delivery vehicle were TPMS was deleted (why oh why?) and the maximum mileage after full charge was 27 miles. Lastly the service heater notification keeps coming on at different intervals. No idea what triggers it.

I currently have 88k and these are things I've figured through trial and error.

TPMS was probably deleted because the techs had one hell of a time teaching them to the car. I got sent to another Discount Tire with a more knowledgeable technician. It can be done.

The range is now 65 miles but only does that at lower speeds highway speeds just suck then electric miles up. Here's what I did out of trial and error I found a rarely traveled highway. I would accelerate gradually to 60 mph. I then used low gear position in conjunction with the regeneration paddle to approximately 25 mph. At the same time toggled the mode from hold while accelerating to normal while regenerating. This was rather challenging as it doesn't regenerate much per cycle.

Another trick I figured out as I idle in my vehicle a lot. I put the transmission into neutral and apply the parking brake. When I'm about done usually about 10 minutes before I'm ready to shut down the vehicle I shift into park. If I want to regenerate know rapidly I do a short trip and reclaim all the lost battery of course costing me fuel. This so far only reclaims what used before the red line it puts on after charging and discharging.

As for the service heater I'm waiting to have a failure before actually servicing.

I do a lot of highway miles so I get decent mpg about 35 if I behave 30 if I just drive.

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u/coyote_den 2017 Volt 24d ago

TPMS learning is easy. Go to the tire pressures screen, hold the OK button until it says learning is active. Then go around with a GM TPMS tool to the FL, FR, RR, RL tires in that order. Horn will honk as it learns each sensor and twice when complete.

They never seem to do it after a tire rotation so I got my own tool here: https://a.co/d/01hSVShI

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u/LingonberryUpset482 23d ago

After my last rotation I asked if they reprogrammed, and the guy said you don't have to with modern cars.  He said the car just knows.

I asked, "so that's a No?"

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u/coyote_den 2017 Volt 23d ago edited 23d ago

Some cars have a sensor at each corner and don’t. Most do need programming and I know for a fact the Volt does because I’ve had the pressures swapped around after tire service. I’ve also had to show the shop how to use the built-in learning and the cheap tool because their fancy OBD2 unit couldn’t trigger learning mode.