2006 Chevrolet Silverado 2500: sudden loss of power

Filed Dec 3, 2019 · Transmission · 198,000 miles · MD

Anytime a trailer is first attached, the truck will randomly go into reduced power mode while driving. This is very unsafe as the truck can to this at highway speed in traffic. It will do this a few times until the PCM "learns" there is a trailer attached. Gm is aware of the issue and issued service bulletin 06-06-04-042b to address the issue by reprogramming the PCM. Because of the safety concerns, this should be addressed as a recall. However,I had to take the truck into the dealer for the update and was expected to pay for them fixing a known software issue. Instead of doing the update at no charge, they managed to damage the PCM while performing the update. The PCM is no longer serviceable and the dealer is wanting to charge me for a replacement even though it was damaged during a called for service bulletin update. The vehicle was not originally equipped with a trailer hitch so the problem didn't arise until the hitch was installed and a trailer was attached.

Filed Apr 27, 2015 · Brakes, Engine · 52,601 miles · NY

Engine idler pulley seized causing serpentine belt to break which resulted in loss of power steering and loss of power brakes..2 local gm dealer parts department's stated this is common on the duramax diesel engine.

Filed Dec 5, 2009 · Brakes, Steering · 87,125 miles · CA

Drove 40 miles from work to home on nov.25th and parked in my driveway. No issues. On saturday, nov.28th, attempting to leave driveway, had loss of steering and braking (no power assist) and rolled into street. Vehicle towed to local dealer. Cause was ruptured nitrogen cannister at hydroboost assembly with loss of power assist and contamination of fluids. Fortunately, I was in my driveway on not on the 40 mile trip to or from work on interstate highway.

Filed Dec 14, 2007 · Brakes, Steering · 12,500 miles · OH

Vehicle sat at the airport for 72hrs. When I left the airport, the brakes felt spongy, but were able to stop the vehicle. On the freeway as I was braking, the brakes began to feel more spongy, requiring increased stopping distance. When I arrived at my residence approximately 45 miles from the airport, I tried to turn into my driveway, only to find I had lost all power steering assist and braking assist. I was able to finally turn in, but had to use my emergency brake to come to a full stop. Once, stopped, I found I could not turn the steering wheel and there were no brakes. I opened the power steering reservoir cap, which immediately spewed a few ounces of p/s fluid over the engine compartment, fortunately not on the hot exhaust. Dealer had the vehicle towed 2 miles to their dealership where they claimed they could not duplicate the problem. However, they did keep it over night and decide to change a p/s pressure relief valve even though they could not duplicate anything. I filed a complaint to gm without anyone taking this serious safety issue as a real problem. This safety issued must be addressed and the root cause must be found before serious injury/death occurs due to this problem.

Filed Apr 23, 2007 · Brakes, Steering · 14,530 miles · OK

Vehicle had not been driven for approx. 72 hours. Lost power assisted brakes and power assisted steering on two occasions on same day while backing after starting. Removed power steering/power brake cap on reservoir with engine not running after the second occasion. Fluid blew out of reservoir (approximately 2-3 ounces). Did not drive vehicle at that time. Next time started approx 8 hours later, no further problem. Dealer could not replicate problem the next day.