2004 GMC Sierra 1500: ABS light or ABS activating

Filed Feb 23, 2014 · Electrical · WV

The gauges began to spin and not work properly or not function at all. Also the brake lights do not function when the gauges and dash lights flash or remain on. The ABS light brake light and the battery light and the security light all come on. Also along with all the other problems when all this happens the headlights dim the fourwheel drive doesn't function and the volume level on the stereo changes.

Filed Oct 29, 2013 · Brakes · 58,000 miles · PA

I was backing out of my garage when suddenly the brake pedal went to the floor. After the brake pedal went to the floor the ABS brake warning light and service brakes light came on. I was able to push down on the emergency brake pedal before striking my other truck which was parked behind me. Being somewhat mechanically inclined, I saw a line of brake fluid on the ground in front of the truck extending beneath it. I looked underneath the truck, almost directly below the drivers seat and saw a bundle of steel brake lines that were nothing but a solid mass of rust and dripping brake fluid! The rusting is so bad that I can't tell whether it's one or all of the brake lines rusted through! Since I'm retired (and don't have to drive in bad weather) and have another older truck I drive most of the time, the gmc has rarely seen bad weather (I purchased it new) and when it did it was always pressure washed (underneath) at the car wash immediately after the snow or ice had ended! My brother who is a mechanic recently had to replace all the rusted brakes lines on a 2005 chevy truck.

Filed Feb 27, 2013 · Brakes · 97,000 miles · PA

Tl*the contact owns a 2004 gmc sierra 1500. The contact stated that while the brake pedal was depressed, the ABS system activated without warning. The vehicle was not taken to the dealer to have a diagnosed performed. The manufacturer was made aware of the failure. The approximate failure mileage was 97,000 and the current mileage was 98,000.

Filed Jan 11, 2012 · Brakes · 67,410 miles · WV

I own a 2004 gmc k1500 with about 70000 miles on it now. On 10/17/11 at 67410 miles I was doing a normal oil change with the vehicle elevated on a rack. I noticed fluid dripping on me from under the drivers floor area. Upon closer inspection I found almost all of the brake lines leading from the front of the truck to the ABS unit rusted badly and leaking. As I was moving the vehicle from the rack the brake pedal went to the floor. With very careful operation and using the parking brake I was able to get the truck back on level ground. I replaced all the lines leading from the ABS unit to the front of the truck rerouting them along the frame. If this failure had occurred on the highway or while pulling my trailer a serious accident may have resulted. This problem is a manufacturing/engineering defect in many of these vehicles. You should not lose all of your brakes when a line ruptures. The dual master cylinder should allow you to have brakes on the opposite side, gm should recall these vehicles and replace the brake lines with stainless or another engineering fix.

Filed Oct 26, 2010 · Brakes · 40,000 miles · CA

2004 gmc sierra ext cab with 40k miles has seriously degraded braking power. Upon sudden stops the vehicle wasn't to keep rolling taking far to long to stop. The pedal goes almost to the floor and yet the truck is still moving. The ABS system does not indicate it is working but the wheel s do not lock up to a skid, in fact, I can't get the truck to skid or invoke the ABS system no matter what I do. I called the dealer who said no recalls were out for this problem but this is definitely not right. Dealer says it's normal but I can bring it in for an inspection ( $100) but any repairs are not covered by gm, he acted like he never heard of this before? I have heard of several other gmc truck owners that said they had similar issues only to be charged $800 or more with little improvement. I cannot keep this truck like this, I am afraid I will roll into the back of someone and I cannot tow my trailer ( small bike trailer) for fear of the same. When will gm wake up?

Filed Jul 29, 2010 · Brakes · 65,000 miles · MI

2004 gmc pu trk ABS activation @ 5mph or less trk don"t stop safely.

Filed Jan 28, 2010 · Brakes · 35,000 miles · NY

Gmc & chev k1500 series pickup trucks 4x4 front wheel bearings ABS brake censor unit I had 2 sets of these go bad on qa pickup with less than 35000 miles on it these wheel bearings are not bad they just become a little lose but are still in factory spec. There is a ABS sensor in between them and the unit will malfunction in this condition which will not let you stop when on dry roads I ran through 2 stop signs trying to stop with 2 feet on the brake pedal this condition is not just with my truck I have over 12 friends that have the same truck 2002 thur 2006 and we have all had this happen to us if you want names and #'s I can get them tw*

Filed Nov 25, 2009 · Brakes · 37,500 miles · PA

2004 gmc sierra 1500 4x4 extended cab / 37,828 miles / driven in pennsylvania - ABS activates at low speed (approximately 5 - 10 MPH) when attempting to stop on dry pavement. When ABS activates, the truck will not stop as expected and have not been able to keep truck from entering intersections. Problem is intermittent but is increasing in regularity. Mechanics have stated this is a common problem with gm trucks and the hub with speed sensor will need replaced or repaired. Issue is determining which hub and sensor is malfunctioning. A recall for the same problem was issued for 1999 - 2002 models under the federal safety agency campaign id# 05v379000.

Filed Oct 31, 2009 · Brakes · 80,000 miles · NE

2004 gmc 1500 4x4 85,000 mi., brakes feel soft and have excessive travel during emergency stopping or when towing. Have replaced front pads with more aggressive pads and no help, have tried bleeding several times to no avail. Personally think the problem lies in the lines from the master cyl. To ABS box as these are flex style lines not hard lines, I have been in the automotive repair business for 40 years and have not had a problem such as this that I could not locate a problem, all components appear to be working properly, ie: booster, master cyl, ABS controller, and calipers. I personally know of several other vehicles from these years with the same problems and gm has not fixed the problems.

Filed Dec 8, 2008 · Brakes · 25,000 miles · MS

I have a 2004 gmc sierra 1500 z71 pick up and the ABS and check brake lights keep coming on and off. After taken in to shop (dealer) they could not find any fault codes finally late 2008 I had it looked at by a local shop and they believe it is a bad card . Some times it wont go off for months and other times it is none stop.

Filed Aug 27, 2008 · Brakes · 32,000 miles · OH

I own a 2004 gmc sierra 1500 z71 with 32,000 on the odometer. On the morning of 27aug2008 the ABS motor located on the framerail under the driver's seat turned on immediately upon turning the ignition to on. The ABS light came on the dash. I had to continue and drive to work. The light stayed on the whole time. Once I arrived at work I removed the fuse for the motor. Now I have no ABS and the lights are on all the time. This is the second time this has happened on this vehicle. The first time was only a few days after it was purchased. It was replaced under warranty. The warranty has expired and it will cost approx. $900 to repair. After some investigation online, I have found scores of people that have had the same problem. There is currently no recall in effect according to this website. I feel that this is unacceptable. This is a very clear safety issue. Not only does it render the vehicle without anti-lock brakes, it drains the battery if the fuse is not pulled soon after the problem emerges. This could leave someone stranded in a variety of conditions if they were unable to pull the fuse or not a full understanding of vehicle electric components. I am even more disgusted that this has happened twice on a vehicle that only has 32,000 miles on the odometer and cost almost $40,000. General motors should be forced to replace the defective components and/or upgrade to a higher quality unit free of charge to the victim.

Filed Feb 8, 2007 · Brakes · 5 miles · NY · crash

On or about 12/01/06, while pulling my truck ahead, the brakes failed, causing me to roll into a parked vehicle. On 3 other occasions, my truck has rolled through intersections due to ABS failure. I contacted my dealership about the problems I was having and they referred me to gm. When I contacted gm, they alluded to the fact that they were aware of the defect but then indicated that the brakes work as designed. I was then advised that nothing could be done with regards to the brake system but was given some free oil changes for my troubles. When I did finally receive the 12,000 mile oil change coverage, due to delays in their processing, the coverage was actually for only 7900 miles. When gm was contacted, they refused to correct this error.