Battery draining when the engine is off.

Asked by Ralph Mar 16, 2020 at 05:24 PM about the 2002 Pontiac Bonneville SLE

Question type: Maintenance & Repair

2002 Pontiac Bonneville. Drains the battery when shut off for extended periods.
I can hear a faint intermitant buzzing after I shut the car off.

2 Answers


pull fuses till that sound stops then check that circuit , if it; still drains do a parasitic test .

2 people found this helpful.

youtube will have many videos on battery draw/drain....

2 people found this helpful.

Your Answer:

Own this car?

Share your experience with others.

2002 Pontiac Bonneville

Review another car

CarGurus Experts

  • #1
    james sparrow
  • #2
    Gene Arnett
  • #3
    John Saffrahn
View All

Know more, shop wisely


Related Models For Sale

Used Pontiac Grand Prix
5 Great Deals out of 165 listings starting at $1,500
Used Pontiac Firebird
13 Great Deals out of 357 listings starting at $3,095
Used Pontiac Grand Am
62 listings starting at $4,995
Used Chevrolet Impala
233 Great Deals out of 4,019 listings starting at $1,500
Used Chevrolet Malibu
765 Great Deals out of 20,240 listings starting at $2,000
Used Toyota Camry
1,781 Great Deals out of 40,474 listings starting at $1,100

Used Cars For Sale

2002 Pontiac Bonneville SLE For Sale
2 listings starting at $10,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.