How to fix headlight dimming issues on 2007 chevy tahoe

Asked by Nov 13, 2014 at 11:20 AM about the 2007 Chevrolet Tahoe LS 2WD

Question type: General

i have a 2007 chevy tahoe 5.3L flex fuel ls model 2wd and i am having some headlight
dimming issues .  i have replaced both battery wires and put a new alt and battery and
still at night just rolling up the windows will make the headlights dim a little .  i added a
after market stereo system and anytime the bass hits the lights dim really bad  it says
that the truck alt is 160 amp do i need to upgrade and get a high output alt or is there
some kind of grounding issues that these trucks are having i also added a second
battery and isolator and  1/0 wiring for both batterys grounds and positives  just for the
car audio and still have the same problem   i noticed the issue before adding any car
audio can anyone help me that has had the same problem and how to fix it thanks

1 Answer

21,865

Every car will dim the lights if you roll the windows up. Especially if you try to roll up a window that is already up. It's an amp draw, there isn't a way around it unless you get manual windows or design a more efficient electric motor. Maybe you need to add a capacitor for the aftermarket amp. That will help with the bass hitting.

Your Answer:

Chevrolet Tahoe Experts

  • #1
    John Carson
    Reputation
    990
  • #2
    Tom Demyan
    Reputation
    970
  • #3
    Rowefast
    Reputation
    950
View All

Related Models For Sale

Used GMC Yukon
326 Great Deals out of 21,390 listings starting at $2,450
Used Chevrolet Suburban
312 Great Deals out of 22,539 listings starting at $1,900
Used Cadillac Escalade
202 Great Deals out of 12,009 listings starting at $2,990
Used Chevrolet Silverado 1500
1,744 Great Deals out of 153,520 listings starting at $1,000
Used Ford Expedition
387 Great Deals out of 22,361 listings starting at $1,000
Used Ford Explorer
859 Great Deals out of 67,472 listings starting at $800
Used GMC Yukon XL
210 Great Deals out of 12,681 listings starting at $2,400
Used Ford F-150
2,269 Great Deals out of 208,432 listings starting at $1,300
Used Dodge Durango
281 Great Deals out of 25,741 listings starting at $1,750
Used Toyota 4Runner
266 Great Deals out of 34,340 listings starting at $1,995
Used Jeep Grand Cherokee
850 Great Deals out of 76,606 listings starting at $900
Used GMC Sierra 1500
715 Great Deals out of 60,919 listings starting at $1,395
Used GMC Acadia
437 Great Deals out of 33,086 listings starting at $3,500
Used Dodge Charger
266 Great Deals out of 32,048 listings starting at $1,850

Used Cars For Sale

2018 Chevrolet Tahoe For Sale
27 Great Deals out of 19,400 listings starting at $35,920
2017 Chevrolet Tahoe For Sale
42 Great Deals out of 3,630 listings starting at $31,999
2016 Chevrolet Tahoe For Sale
16 Great Deals out of 1,229 listings starting at $27,380
2015 Chevrolet Tahoe For Sale
94 Great Deals out of 3,421 listings starting at $23,995
2014 Chevrolet Tahoe For Sale
20 Great Deals out of 607 listings starting at $10,900

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.