I was driving down route 24 in lewes, delaware approaching a yellow light when the car in front of me stopped. I applied the brakes and they completely failed despite putting the peddle all the way to the floor. I was forced to veer onto the shoulder then into a farmers field in order to slow the truck down enough to force it into park. Apparently the hydraulic brake lines on these trucks are completely exposed to the elements and have a history of failing. Once that happens, the rear calipers lock up and there are no brakes at all switch can cause a crash. There is no warning given until the hydraulic line snaps and the fluid is released. My truck has never been in an accident and has low mileage for its age. It has always been well maintained and is not a work truck but merely a personal vehicle. In addition, I am on my third transmission do to the poor selection gm made of putting the s-10 pick up transmission in a substantially heavier truck.
The worst 2004 GMC Sierra Denali problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes5
- Electrical2
- Airbags1
- Engine1
- Seat belts1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes5
- Electrical2
- Airbags1
- Engine1
- Seat belts1
- Steering1
- Suspension1
- Tires1
- Transmission1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2004 GMC Sierra Denali 69
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This information bulletin explains the labor operation numbers used for submitting warranty claims and how...
- Equipment: other: owners/service/other manual
- Equipment: electrical
- This informational bulletin provides information on Part Restriction and Ordering Process Information for...
- This informational bulletin provides information on close coupled converters and there affect on newly...
- Engine and engine cooling: exhaust system: emission control: catalytic convertor
- This informational bulletin provides technicians with information regarding automatic transmission oil...
- This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
- Equipment: electrical
- Electrical system
What 2004 GMC Sierra Denali owners say
Most recent owner complaints, unedited.
Tl* the contact owns a 2004 gmc sierra denali. The contact stated while traveling approximately 5 MPH, the brake pedal was able to be fully depressed and the brake warning light illuminated. The vehicle was towed to the dealer where it was found that the brake lines were corroded. The contact also mentioned that the failure was experienced twice. The vehicle was being repaired. The manufacturer was contacted about the failure. The failure mileage was approximately 86,000.
Front brake line failure due to corrosion, in june 2012 have to replace entire brake line system.
2004 gmc sierra 6 liter v8 - exhaust manifold bolts broken off - $600 to repair. Design and/or part defect. Dealer said this happens. Recall or have gm correct?
Over the past week, I noticed that my gmc denali truck was pulling to the left so I had to oversteer to the right. Each day, the effect became more pronounced so I had the local gmc dealer check out the truck. The problem was that the cords in the front goodyear wrangler hp tire had separated--it was a blowout waiting to happen. I did not hit anything with my truck to have caused the separation, the tread wear was even on all tires, they were regularly checked for inflation, and most of the tread was left since I have put low mileage on this tires. A number of deaths have been reported due to failure of this type of tire. I had both front tires replaced and over the next few months, I will replace the remaining two tires. I cannot chance a death or injury. Please recall these tires. How many people need to die.
Abs brake activates at slow speeds. Wheel hub bearing problem.
Instrument cluster malfunctions. Speedometer flutters and displays wrong speed. Gets stuck.
Speedometer malfunctions. Goes to 120 then 0. Stays at 0. Stops working. Skips around.
I am experiencing the exact problem that is described regarding the recall of gmc light trucks for ABS activation at slow speeds due to corrosion of the hub and wheel assembly. I have a 2004 gmc sierra denali which, according to gmc, is not included in the massive recall prompted by your investigation. My issue, as described by the dealer, is exactly the same as the issue and reason for recalling those other vehicles.
Quadra steering locks up, causing the rear of the truck to veer to the left and the entire truck to travel in a crabbing or angled position. On two lane road the rear is in the oncoming lane and the vehicle is nearly impossible to control. Message on dash is "service 4 wheel steer" dealer can not find a problem. Vehicle still at dealership.
Compare the 2004 GMC Sierra Denali
Other model years
200220042005200620072008200920102011201220132014201520162017201820192020
Questions about the 2004 GMC Sierra Denali
Is the 2004 GMC Sierra Denali reliable?
Owners have filed 11 complaints about the 2004 GMC Sierra Denali, fewer than a typical Sierra Denali model year.
What is the 2004 GMC Sierra Denali year score?
The 2004 GMC Sierra Denali scores 68 out of 100 (average). The score compares it with the other model years of the GMC Sierra Denali: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2004 GMC Sierra Denali?
Brakes, with 5 complaints, typically around 65,000 miles. Next is electrical (2).
How many recalls does the 2004 GMC Sierra Denali have?
No recalls on record.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2004 GMC Sierra Denali?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history