If Chevrolet Suburban Won't Start It ...

If Chevrolet Suburban Won't Start It Could Be Security Feature Issues

There are 264 comments on the Associated Content story from May 5, 2009, titled If Chevrolet Suburban Won't Start It Could Be Security Feature Issues. In it, Associated Content reports that:

Many GM model cars and trucks are equipped with what is known as the Passlock feature which is a factory based security system that shuts down the fuel lines when an attempt is made by a thief to steal the vehicle.

Join the discussion below, or Read more at Associated Content.

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Thompson3

AOL

#1 Jun 9, 2009
I have this same problem with the security light and the vehicle not starting aand have been dealing with this for over 4 years. It seems that it happens MOSTLY when the weather is warm/hot. MY vehicle takes anywhere from 20 minutes up to 1 hour and 20 minutes for the system to reset. I have been told by various people, including Chev. Dealer Part Dept. Manager of what all the possiblities could be and have replaced those parts. Still it doesn't start when security light is on. I've read that many people have had this problem and there hasn't been a definite answer to how to permanently. Someone out there HAS to know how to fix. Help!

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graemont

Jim Thorpe, PA

#2 Jul 23, 2009
I have the same problem and have not been able to find anyone to answer. I had my security system disabled, replaced the fuel pump - I'm tired of spending money on this vehicle and then discovering that the problem still hasn't been fixed. Is there anyone out there who REALLY knows what it going on? There are numerous posts from other Chevy owners out there and no one seems to be able to answer this question. Once I get rid of the piece of junk, I'll never buy another Chevy.

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Surgee Chatsworth CA

Los Angeles, CA

#3 Jul 23, 2009
I have similar problem vehicle won't start, after not in use for 2 days. Battery completely discharged, mechanic checked alternator past test(3), jump start vehicle test equipment say its
charging. 1999 Suburban C1500 5.7 liter gas. Replaced battery 2nd time. My spouse love the truck.
Does someone out there know how to fix this. Help.

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james

Dahlgren, VA

#4 Dec 26, 2009
mpletely
Surgee Chatsworth CA wrote:
I have similar problems. Battery codaring. 1999 Suburban C1500 5.7 liter gas. Replaced battery 2nd tme. My spouse love the truck.
Does someone out there kn vehicle won't start, after not in use for 2 dayow how to fix this. Help.
Try removing your underhood light. It is a mercury switch and comes on if not on level ground.
james

Dahlgren, VA

#5 Dec 26, 2009
try removing your underhood lighbulb. It is a mercury switch and will turn on if not parked on level surface.

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ray

Montgomery, AL

#6 Feb 16, 2010
how do you reset the security system on a 2000 chevy i have replaced the passlock the fuelpump and still want start

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Thompson3

Baltimore, MD

#7 Feb 22, 2010
With our Chev. Sub., we still have the problem of it not starting, but only when the weather is warm.
It seems to have something to do with the security system...I too have replaced the passlock, fuel pump and replaced a couple other things.
A few years back, I found when the security light stays "ON" and your vehicle won't start, insert your key in the ignition-turn the key to the on position (but do not start the vehicle)-Security system will go through process. Can take anywhere from 10 minutes to whenever. When security light goes out, turn the key off, wait 3 seconds, turn the key to on position, repeat and then it should start. I guess it's suppose to reset. This worked for a while, but then the time started getting longer and longer to reset. Sure wish someone would know why this happens, so we can have fixed. Good Luck!
Dale

Saint Peters, MO

#8 Mar 8, 2010
I recently started having this problem with my 2000 Suburban. I havenít been able to figure out why this is happening, but I have been able to turn the key to accessory and wait for the security light to cycle through and then start. This has worked for me, I hope it helps you.
Bertha

San Diego, CA

#9 Mar 12, 2010
We started having this same problem about 2 months ago with our 2002 Suburban. The car has roughly 84,000 miles and has been completely reliable up until now.(We are original owners) Intermittently, the car turns over but won't start. It always seems to start up later after sitting for awhile. A local service station had it for 4 days and finally got it to malfunction but received no error codes on diagnostic computer. Dealership had it for over 2 weeks and could never get it to malfunction, and never received an error code on the diagnostic computers. They said they manually checked everything in the fuel chain and could not find any problems. Dealership said that if it was a security system problem, they should have received an error code. They also said there was nothing in their dealership database of shared information addressing this issue. Unfortunately, I never paid any attention to the security light before now. When it starts acting up again (as I'm sure it will), I will see if the above-recommended procedures work for me to get it started. Can't anyone at Chevy investigate this issue??
Sue

United States

#10 Mar 19, 2010
I have a 2000 chevy suburban that will only start/run if jumpstarted, after started when you shut off and try to start again it just clicks, the battery is fully charged and the alternator is ok, what could be wrong

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Bertha

San Diego, CA

#11 Mar 20, 2010
It's done it again...twice this week. Both times I was parked on a slant with the passenger side lower than the drivers' side. The first time it was on a slight slant, and it finally started on the third attempt. The first two attempts it turned over and acted like it wanted to start. When I let go of the key the "Low Fuel" light flashed -- but it had almost 3/4 of a tank. The second time it wouldn't start -- today -- it was on a pretty dramatic slant in a parking garage. Same thing with the "Low Fuel" light flashing in between attempts, but it still has well over 1/2 tank of gas. Had it towed to dealership but will have to wait until the service department opens on Monday to get any answers....
gimmeabrekplez

Fort Huachuca, AZ

#12 Mar 30, 2010
I am having the same issues as mentioned above. The security light, low fuel, and battery light alternates flockering. It has caused the battery to be drain on numerous occassions too. has anyone coem up with a fix.
Chaz

United States

#13 Apr 5, 2010
I don't have this problem on my 97. but did anyone try to disconnect the hood light? You never know. But it would be good to know if it worked or didn't. If I find out anything, I'll post it.
Rudy Rios

Santa Fe, TX

#14 Apr 14, 2010
My problem is that the 1999 Suburban just won't start. It powers up, the gauges and pumps all whirr to life, the battery if full, but nothing happens. I do the old, "turn the key, pulll the key, turn it again. Then it may start after 5 tries or 15. worse in cold,(29-45deg) but still present in warm weather. I've heard the security system is failing. any clues?

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Thompson3

Baltimore, MD

#15 Apr 19, 2010
Rudy Rios wrote:
My problem is that the 1999 Suburban just won't start. It powers up, the gauges and pumps all whirr to life, the battery if full, but nothing happens. I do the old, "turn the key, pulll the key, turn it again. Then it may start after 5 tries or 15. worse in cold,(29-45deg) but still present in warm weather. I've heard the security system is failing. any clues?
****
Thompson3-For us this usually only happens when the weather is hot, humid.
Check your security light. When you insert your key and turn to the "on" position, but do not start...check the security light. It should flash and then go out. If the light does NOT go out, like in our case, then the vehicle won't start.
If it does go out then it usually starts.

When it doesn't start, We still do the process mentioned before-until the light goes out. This can take any where from 5 minutes up to hours...in the event it takes hours, then the battery drained and then of course that's another issue. During the process, you can usually hear it re-setting. After the process, the light should go out. Then turn the key off for a few seconds, turn on for a few seconds, REPEAT and then it should start.

This is a band-aid fix, We still haven't found a permenant solution.
Lee Bort

Auburn, ME

#16 Apr 30, 2010
My '99 chevy suburban won't turn over when the key is engaged.....dash lights up, I can hear relays clicking, but the starter never engages....running lights go
out when the starter is attempted to be engaged-the word security lights up on the dashboard when the key is turned on, but goes out after 5 seconds...it has on occasion started by leaving the key on for 15 minutes,turning off, then trying to start and the starter engages.....now, however, even that doesn't work. After it has sat for varying hours it does start up...any ideas?
DizzyDame

Kenosha, WI

#17 May 17, 2010
We have a 1999 Chevy Suburban 75,000 miles that won't start at all. A week ago I went to start it and the gauges moved a bit and interior lights were on. No clicking noise when I turned the key. Tried a few times, would not start. We charged the battery and it worked for a day. Then it died again. We replaced the battery last week and now we are back to square one. Nothing....no gauge turning, no lights. Nothing. Funny though I replaced the hood light. That had been burned out. Just put a new one in today. Now, we do have a security system as others have stated. I am currently trying that option. But the little red light is not on at all. The key has been turned now for about 5 min. or so. We JUST bougth this vehicle a little over a month ago and here we are. My husband seems to think it is electrical in some way and not a fuel issue. Any advice?? I am attempting to get some answers to him to help him out! Many thanks:-)
jonathon

Leander, TX

#18 May 24, 2010
hello i have a 99 sub that was stolen, they trashed the whole sterring colum.went to the local salvage yard and bought a complete colum with a new key. installed it, ran good for about a week then the security lights flashes and will not let the truck start.. is there someway i can diable this security crap because if it really worked then it would have keep them from stealling it in the first place...PLEASE HELP...i am mechically inclined so i can do almost anything..
JoJ

Louisburg, NC

#19 Jun 2, 2010
Problem just started last night. I went to start my 01 Suburban and the whole dash lit up when i turned the key, then nothing. I tried turning the key again and there was no clicking but i could hear the onstar service (which Im not subscribed to) clicking thru the speakers and the clock reset. I got a friend to try to jump me and the engine began to click but nothing. Havent tried the cleaning the battery posts method yet but about to try it now.
robertguero

Conway, AR

#20 Jun 4, 2010
jonathon wrote:
hello i have a 99 sub that was stolen, they trashed the whole sterring colum.went to the local salvage yard and bought a complete colum with a new key. installed it, ran good for about a week then the security lights flashes and will not let the truck start.. is there someway i can diable this security crap because if it really worked then it would have keep them from stealling it in the first place...PLEASE HELP...i am mechically inclined so i can do almost anything..
NO THE PASSLOCK 2 ANTI-THEFT System CAN NOT BE REMOVED ON ANY VEH. IT IS AN INTEGRATED SYSTEM. You can use a bypass module BUT you must have keys that are already programmed to the veh to install a bypass module.

All of the problems in these post, if your security light is "ON" or flashing, is the transponder is not being read correctly. If you try to many times to start with wrong transponder signal (chip in key or ignition lock) being read the system will shut you out for a period of time. Leaving the key in the ignition with it "ON" for a period of time will sometimes reset the code. Most of these the ignition lock needs to be replaced or the system bypassed. A simple resistor on some systems can be used to bypass. most others need a module and programmed keys to bypass the factory immobilizers. Any alarm shop knows how to do this. Stop going to mechanics, they have no idea. I have plenty of info at installsupport dot com.

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