My truck is exhibiting an issue in which the GM passlock system disables the fuel and engine because of some malfunction. This system is intended to disable the fuel system on a vehicle if it detects that the ignition has been tampered with or in improper key has been used to try and start the vehicle. My issue is that intermittently when I try to start my truck with the factory key, the passlock system engages and does not allow me to start my truck. I have to wait 10 minutes in order for the passlock system light to turn off on the dashboard. Sometimes my truck will start after this 10 minute lockout period. It has happened before where my truck will fail to start after the first lockout period and I have to wait another 10 minutes. Once the passlock system allows me to start the engine, my truck runs fine with no issues. In my opinion, this is a serious safety concern. In any emergency situation, I would hope to depend on my truck starting. This malfunctioning passlock system prevents me from starting my truck. My greatest issue with this situation is that my truck is not the only one that is affected by this. A quick google search of "GMC Canyon passlock" will show pages upon pages of forums of other truck owners with the same problem. I live in an area of the country with a high risk of forest fires. I know friends who have been evacuated from their homes in the past. I honestly believe that this malfunction of my truck could greatly impact my ability to evacuate in case of an emergency.

- Flagstaff, AZ, USA

I got a safety bulletin from GMC #14609 stating that there is a problem with my air bag light, . it can go on due to wires in the rear door breaking, the air bag can go off also. This is a safety issue with the air bags, I have the problem with the air bag light on. They said they would fix it or reimburse me if I paid in the past to have it fixed. Well they said I was off of warranty 1-15. This is a safety issue, the dealer will not fix it for free. Why did they send me this bulletin with my VIN number attached? I have had nothing but problems with this GMC truck, you name it it has had a problem. Mostly electrical system failure. The air bag issue should be fixed by GMC free of charge which they state in the letter, there telling me I am a few months past the 10 year dead line. That is a disgrace this is a safety issue and should be covered by GMC if it is a design problem like all the other problems I am having. They are getting away with this and the air bag can go off while driving and cause an accident. I am holding them liable for this problem. What can I do about this they are not helping me with this safety issue. Thanks, tom

- Peabody, MA, USA

The contact owns a 2005 GMC Canyon. The contact stated that the vehicle failed to start. The contact also stated that the vehicle would restart itself without having to turn the key. The failures occurred intermittently. The vehicle was taken to the dealer where the failure could not be diagnosed. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 15,000.

- Channelview, TX, USA

This truck was listed in a recall under a tsb #07123A. This no charge recall was to replace cylinder heads that were manufactured with defective intake valve seats. The "special coverage" extended the repair for 7 years/100,0000. I have owned the truck for 5 years and did not receive any notification of this problem. My father bought the vehicle new and I inherited it on his passing in 2009. I have 52,000 miles on the otherwise pristine truck. I am told it doesn't matter that it was a clear manufacturers defect or that I was not notified as the extension expired in 2013. The repair is $3500. I think that a recall to replace a defective engine part as substantial as the cylinder head should be considered non expirable particularly with such a low mileage engine. I bought a 2004 new and put 167,000 miles on it before selling it and I did not receive a letter on this recall. My son also bought a new 2004 and currently has 190,000 miles on it and he did not receive a letter on the engine. My dad bought this 2005 new before passing in 2009 and as far as I know he did not receive a letter. I did not get any letter about the engine during my ownership. I believe a great many engines were affected as the indicated by the extended coverage. However, not telling all of the owners of vehicles involved should not become my extreme financial burden. I don't think GMC should be able to thumb their nose at me for missing an arbitrary cut off date, for a warranty recall I had no knowledge of and be forced to bear the entire burden or repair costs. They knew then and know now that these heads were defective.

- Vermontville, MI, USA

Check engine light comes on intermittently indicating misfire when idling; car is shaking and rattling there's a special coverage letter #07123A but GMC does not cover intake leakage issue once vehicle is passed 7 yrs or 100K miles, even though they are aware of the problem since 2007. If you are not the original owner, there is no way to be notified or contacted. My dealer never made me aware of the issue after purchasing the truck. Now I'm passed the extended warranty and am supposed to cover the full costs. This is customer fraud since its a manufacturing problem related to the engine - all 2004-06 GMC Canyons are affected by this. This needs a recall - not extended warranty!

- Columbia, SC, USA