How do I reset passlock on 2005 chevy Trailblazer?

5

Asked by Jul 11, 2013 at 06:46 AM about the 2005 Chevrolet TrailBlazer LS

Question type: Maintenance & Repair

Battery died Tuesday evening.Put in new battery the next day.Now have power to everything except it will not start. Passlock will flash 3 times then stay on when I turn the switch.Is there any way I can reset the passlock without towing to garage for repair?

10 Answers

This may work: 1. Turn on the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON (vehicle will not start). look at 'security light', after approximately 10 minutes it should shut off 4. Turn off the ignition, and wait 5 seconds. 5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes/ The vehicle is now ready to relearn the Passlock Sensor Data Code The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle. 6.Start the engine (the vehicle has now learned the Passlock Sensor Data Code and/or password).

26 out of 26 people think this is helpful.
530

I have a 2002 chevy trailblazer and the passlock is locked how can i restart my truck ! please help!

38 out of 38 people think this is helpful.
530

i tried your password sensor data code command with the steps 1-4 than repeated 3 x than did the off to crank thing but not working ?

15 out of 15 people think this is helpful.
60

i just did it on my 2003 trailblazer and it did work . the steps that davidh25 said to do follow it exactly what he said to do

6 out of 6 people think this is helpful.
110

I just did my truck wont start

11 out of 11 people think this is helpful.

DavidH25 wen i do the steps does first time count as 1cycle? An do i repeat the steps every 30 minutes?

4 out of 4 people think this is helpful.

I did it on my 04 trailblazer an it work...

3 out of 3 people think this is helpful.
10

I did it to my 04 trailblazer and won't do it either

1 out of 1 people think this is helpful.
150

We have a 2005 trailblazer. It sat idle for 2 years. Changed battery and numerous other items. Trailblazer runs, BUT the security light and hazards stay on....will doing this "passcode" thing fix?

15 out of 15 people think this is helpful.
10

I did it for my 2003 trail blazer, I put an used ecm from a 2002 vehicle and works perfect

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 4,385 nationwide TrailBlazer listings starting at $1,990.

ZIP:

Search Chevrolet TrailBlazer Questions

Chevrolet TrailBlazer Experts

#1 Tom Demyan
Tom Demyan
Reputation 770
#2 bigdogracer
bigdogracer
Reputation 700
#3 tennisshoes
tennisshoes
Reputation 580
View All

Related Models For Sale

Used Chevrolet Tahoe
620 Great Deals out of 27,509 listings starting at $600
Used Jeep Grand Cherokee
807 Great Deals out of 69,474 listings starting at $995
Used GMC Envoy
50 Great Deals out of 2,013 listings starting at $1,999
Used Chevrolet Silverado 1500
2,008 Great Deals out of 157,317 listings starting at $1,995
Used Chevrolet TrailBlazer EXT
7 Great Deals out of 974 listings starting at $2,500
Used Ford Explorer
765 Great Deals out of 73,775 listings starting at $750
Used Chevrolet Impala
619 Great Deals out of 29,141 listings starting at $789
Used Dodge Charger
243 Great Deals out of 27,286 listings starting at $1,997
Used Dodge Durango
244 Great Deals out of 22,891 listings starting at $1,500
Used Chevrolet Equinox
1,077 Great Deals out of 60,236 listings starting at $1,600
Used Chevrolet Blazer
3 Great Deals out of 1,154 listings starting at $1,995
Used Ford F-150
2,420 Great Deals out of 209,615 listings starting at $895