trailblazer warning lights and gauges crazy

Asked by GuruSV3X3 May 22, 2019 at 04:15 PM about the 2003 Chevrolet Trailblazer

Question type: Maintenance & Repair

my 2003 EXT gauges and almost every warning signal are going crazy, flashing
and dinging constantly. I have recently changed the ignition switch to fix a
different problem. the DIC is going back and forth between unknown driver and
driver 2. Has anybody got a solution?

2 Answers


Typically guages going crazy are ignition switch related. Hope you used AC Delco brand? I'd disconnect the battery for a while. Also, clean the ground on the transmission hump behind the carpet, it's one screw, handles a ton of grounds for several items.

changed out ign switch again (AC Delco), cleaned tranny hump ground, have same problem. now sometimes all gauges don't work. any other ideas? thanks.

Your Answer:

Chevrolet Trailblazer Experts

  • #1
  • #2
    G A Arne
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Chevrolet Tahoe
23 Great Deals out of 766 listings starting at $6,871
Used Jeep Grand Cherokee
96 Great Deals out of 4,958 listings starting at $3,890
Used Chevrolet Blazer
4 Great Deals out of 1,060 listings starting at $33,999
Used Chevrolet Silverado 1500
115 Great Deals out of 10,428 listings starting at $4,330
Used GMC Envoy
29 listings starting at $4,950
Used Ford Explorer
70 Great Deals out of 2,614 listings starting at $3,995
Used Dodge Durango
42 Great Deals out of 933 listings starting at $7,495
Used Chevrolet Impala
38 Great Deals out of 962 listings starting at $2,495
Used Ford F-150
264 Great Deals out of 12,426 listings starting at $3,695
Used GMC Yukon
18 Great Deals out of 921 listings starting at $4,395

Used Cars for Sale

2009 Chevrolet Trailblazer For Sale
3 listings starting at $5,400
2008 Chevrolet Trailblazer For Sale
7 listings starting at $5,850

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.