Hi there, I’m contemplating buying a used 2014 Lexus IS350 (33k miles) from a non-Lexus dealership. I managed to pull down the complete Lexus service records, and I’m wondering how much of a red flag the following is:
The car needed a jump start at 3720 miles. Then at the 10k check-up, they replaced the battery:
DESCRIPTION: BATTERY COMB: BATTERY ~|~GUEST REPORTS
VEHICLE NEEDS A JUMP START ,CHECK BATTERY CONDITION
AND ADV ~|~INTERNAL MALFUNCTION ~|~BAD CELL. 60
PERFORMED A BATTERY TEST AND FAILED. REPLACED BATTERY.
And then at 15k they replaced the battery AGAIN:
DESCRIPTION: MISC ~|~WHILE VEHICLE IS IN OUR CARE,
VEHICLE HAD TO BE JUMP STARTS TWICE. ~|~BATTERY TEST
FAIL BAD CELL. ~|~REPLACE BATTERY.
However, things seem to have been fine in the 23 months / 17k miles since that second replacement (or at least there is no Lexus service record of further problems), and a July '17 35k check-up reported the battery as “OK.”
So what I’m wondering is: Did this guy just have bad luck with two bad batteries in a row, or is there some lurking problem with the alternator or rest of the electrical system that is killing these batteries, and I’m buying a lemon?
If not obvious from the repair notes and/or laws of probability, is that something my local mechanic can unpack for me?
Thanks for any thoughts!