Friday 11 October 2013

Update on my Volt issues.

Chevrolet are taking my Volt away next week to see if they can get to the bottom of the strange behaviour I've been seeing, so I put together a quick summary of how it behaved after the garage had updated the software.


Almost every time that I drove the full battery range (or close to the full range), the remaining range dropped very rapidly toward the end of the trip. 3 times when the car was parked with 12 or fewer miles remaining several miles of range disappeared while the car was stationary. Twice when I had used all of the battery I found that after leaving the car for a bit it then started up in PPR mode.

Date
Morning Range Estimate
Actual
Remaing range estimate
Notes
19 Sep 2013
38



20 Sep 2013
38



21 Sep 2013
40
39.7
0
Last 6 miles of range went in only 1.3 miles
22 Sep 2013
41
35.6
5
Dropped from 12 miles range to 5 miles while stationary
23 Sep 2013
43
32
12

24 Sep 2013
44
35.9
8
Range dropped by 8 miles in last 4 miles driving.
25 Sep 2013
44
40.9
0
Last 10 miles of range went in 3.2 miles.
26 Sep 2013
44
36.5
2
Range dropped from 8 to 5 miles over last 0.7 miles, then dropped another 3 miles while stationary (so altogether lost 6 miles range over last 0.7 miles).
27 Sep 2013
-
-
-

28 Sep 2013
43
44.3
0
Last 10 miles of range took 4.3 miles. On returning to car got Propulsion Power Reduced
29 Sep 2013
43
42.3
0
Range dropped from 12 miles to 2 miles while parked. Last 2 miles of range only lasted 0.7 miles.
30 Sep 2013
45
39.6
0
Parked after 2.5 miles on petrol. On returning to car got Propulsion Power Reduced

All of the above are documented in previous posts except the last: