Anti-theft Controller Problems of GMC Yukon

2011 GMC Yukon. Consumer has attempted to get vehicle fixed. The consumer stated the safety issue is created when an unknown electrical problem in the vehicle results in the anti-theft fuse blowing thus causing the vehicle to stall while driving. When the vehicle stalls, the power steering is also disabled making the vehicle impossible to steer. The dealer indicated the cause was likely due to an electrical short but couldn't find the exact cause. The dealer recommended replacing the battery and ignition switch and adding some temporary bypass circuits.

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My 2000 Yukon denali old body style with passlock 1. Many times it will not start due to a problem with the passlock system. I have brought it into the dealer for not to find the problem many times and being charged an hour for nothings. I drive and the light comes on all the time.

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My vehicle will not start periodically while it is raining or the humidity is very high. During this time, the security light will blink and you must wait a minimum of 10 minutes before it will start again. There has been one case when the car completely stopped during driving and lost all power (steering, brakes, etc). The dealer could not find out why this was occurring. The key cylinder was replaced based on a "passlock" error code in the ecu. This has not resolved the problem. I have visited many websites and found this to be a pretty common problem with Chevrolet and GMC suvs and across many years of production.

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Gm has an anti-theft device called a passlock. The systems seems to be faulty on a very large number of their vehicles. It makes the auto not start and maybe even sometimes die while running. I'm quite concerned of the possibility of the engine failing while driving down the road. They told me it would cost $400 - $500 to fix it.