mxp
Well-known member
Mirko, Thanks for sharing the BMS reset details.
Any advice how to prevent this from happening while at the dealership claiming a battery warranty?
I hate to be in a situation if the dealer says to me: "Oh, a BMS reset is a requirement in order to test the battery for a warranty claim...."
My Leaf was purchased in 7/1/2011 and the last day for me to claim (if I could get down to 4 bars lost) is 7/1/2016. (was it 5yr/60k warr period?)
Thanks for any advice....
Any advice how to prevent this from happening while at the dealership claiming a battery warranty?
I hate to be in a situation if the dealer says to me: "Oh, a BMS reset is a requirement in order to test the battery for a warranty claim...."
My Leaf was purchased in 7/1/2011 and the last day for me to claim (if I could get down to 4 bars lost) is 7/1/2016. (was it 5yr/60k warr period?)
Thanks for any advice....
mirko said:pchilds said:Wrong!!! I lost 2 bars in 4 months and 2600 miles, 3 bars in 10 months and 5500 miles.keydiver said:It sounds to me like another Leaf that had its BMS reset by the dealer. No Leaf on here has gone from 1 bar lost to 3 bars lost in 6 months of light driving. The good news is that at that rate, you should lose that 4th bar soon. Nissan will never tell you if it was a 3 bar loser 6 months ago, but I wonder if by chance your VIN was one that has been tracked by our database?
Lost #12 12/03/13, 17550 miles, 28 months owned. AHr=55.45, SOH=84%
Lost #11 06/15/14, 21493 miles, 34 months owned. AHr=50.70, SOH=77%
Lost #10 10/08/14, 23020 miles, 38 months owned. AHr=47.44, SOH=72%
I actually had my Capacity Loss Data reset (BMS reset) in my LEAF. I lost four capacity bars and took my car in to Autonation Nissan of Delray Beach. They ran the battery report that showed only 8 capacity bars remaining. Then the ran the Consult CLEAR BATTERY GRADUAL CAPACITY LOSS DATA command. Then the "Certified LEAF Technician" told me that my car was not eligible for the battery warranty replacement, and that the LEAF now had 14 capacity bars. YES... "Certified LEAF Technician" said 14 capacity bars!!! I asked them to show this to me. They went back to my LEAF and counted only 12. What a surprise. After almost three months of going back and forth with support at 1-877-no-gas-ev and a different Nissan dealer, I FINALLY had my battery replaced under warranty.
Anyway, the reason I started responding to this is that after the capacity loss data was deleted the LEAF lost capacity bars much like memoryisram and keydiver are describing. IMO, dealers should face the same penalties for deleting capacity loss data without having replaced the battery as they would for turning back an odometer.
memoryisram, as keydiver pointed out, you will eventually lose that 4th capacity bar.