Three problems related to horn assembly have been reported for the 2004 Chevrolet Colorado. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Colorado based on all problems reported for the 2004 Colorado.
I put key into on position and airbag deployed and hit me in face. My face was red & swollen on right side where I was hit by bag. My truck not moving was parked my seatbelt was out side I was getting it on when bag deployed. Gm is giving me a hard time! I keep getting 1800 customer service numbers they gave me a pac # but they have not followed up with me or dealer. I bought the truck it had 101,000 on it it has 176,000 on it now. Gm only agreed to take care of it after I told them I was in vehicle when the bag deployed. Still waiting for my truck to be fixed. Dealer told me the computer is fried so it needs bag and computer then maybe they can find out why it blew. Cost is $1500-2000 to fix they said it may do it again. So I left waiting and wondering what next? luckily I had stopped for work supplies on my way home, and did not drive straight home! otherwise, I would have been in a wreck! after it happened, I wondered why cab filled with powder. I called dealer! they could not beleive this, so I drove the truck to them. They cut bag off wheel and taped horn cover on. I returned it to them to fix. The used car dealer turned it over to a gm dealer by them and there it sits? waiting for gm to call and give gm dealership the go ahead to fix!, and for gm to call me and give me a reason for all of this!.
Sometimes, especially in winter months when it is cold outside the door locks will stop working. For example, using the remote to lock the doors, they won't lock and the security alarm (horns) will go off if you open the closed door because the computer system thinks the door is locked sending security system into tamper mode. Also when shifting to drive, the doors will not lock as they normally do when vehicle is shifted out of park. Also some lights may not illuminate such as the left front side marker lamp/turn signal. Eventually the electrical system will reset and the door locks will work normally. It isn't just during cold weather that this happens but it seems to happen more often during colder weather. Gm dealer replaced a couple of switches when I brought my truck in while under warranty but haven't brought it in since the expiration of my warranty and it still does it on certain occasions.
Driving from dealer to my house after buying truck the brake lights, wipers, horn, cruise control all stopped working at same time.