Stability system disable
Why is my brake light on and the stsbility system disabled.

The biggest additions to the GMC Yukon SUV for 2005 came from new Stabilitrak and touch screen navigation. Otherwise, GMC added a couple new exterior colors for your viewing pleasure. This domestic vehicle comes in 5 trims: the SLE, SLE 4WD, SLT, SLT 4WD, and Denali AWD. The Yukon offers a powerful set of V8 engines, including 4.8 L, 285 hp and 5.3 L, 295 hp models.
All trims have 4 doors and room for 8-9 passengers. Gas mileage generally comes out to 15 mpg in the city and 20 on the highway. The 2005 Yukon can tow nearly 8000 lbs. and gives you nearly 105 cubic feet of cargo space with the second row folded and the third row removed.
Overall, the Yukon certainly pulls its weight in the eyes of its drivers with its spacious interior and strong powertrains. However, interior and body materials need to improve. Pick up an '05 for a relatively modern and affordable make. However, if you need the most recent edition, pay extra and go for the 2007 Yukon.
Why is my brake light on and the stsbility system disabled.
I have a 2005 GMC Yukon SLE with 227,000 miles on it. Today after running the air conditioner for the first time since last fall, when I shut it off and took the key out, the AC fan kept running and wouldn't shut off. I started the vehicle back up, tried to shut the fan off on the console, but it would not shut off. Now the fan has continuously run for 5 hours and my 6-month-old battery is now dead. My mechanic checked it out about a year ago for me as the speedometer and gas gauge quit working, and said that the motor for the cluster that controls all the gauges was on its last leg and there was several other malfunctions in the cluster as well. I was told that it had no bearing on the AC and heat controls, and since I only drive it in my small home town, I decided not to have it fixed just yet since it was going to cost over $2500 to replace and repair what was wrong. Could this be what is causing the problems with the fan?
So I got the P0300 code. I thought it was just a bad coil so I replaced. Wasn't it. Did a tune up. Never fixed it. So I pulled valve covers found #5 cyl to have a bent push tube. Checked all of the others. Number the only one. Replaced tried again still the same. So I've replaced timing chain oil pump the oil pick up o-ring. Map senors. At high idle it runs fine. It won't stay running at all. I even replaced the injector on #5 to. I'm lost not sure we're to go or what to do.
I've replaced the bulb and the reverse, brake and turn signal works. is it a fuse or wiring?
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Drivetrain
Axle ratio: 3.23 · Locking differential: rear
Exterior Features
Front bumper color: chrome · Rear bumper color: chrome
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: integrated turn signals
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Rear seat folding: split · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Tires and Rims
Wheels: alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Dual rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.23 · Locking differential: rear
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated · Inside rearview mirror: electrochromic
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Rear seat folding: split · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Wheels
Wheel locks: front and rear
Windows
Front wipers: intermittent · Rear wiper: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Drivetrain
4WD Type: part time · Axle ratio: 3.42 · Locking differential: rear
Exterior Features
Front bumper color: chrome · Rear bumper color: chrome · Skid plate(s): front and rear
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Rear seat folding: split · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Tires and Rims
Wheels: steel
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Dual rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.23 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power retractable · Inside rearview mirror: electrochromic
Rear Seats
Type: bucket
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Heated: front seats · Rear seat folding: split · Upholstery: leather
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Wheels
Wheel locks: front and rear
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Dual rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time · Axle ratio: 3.42 · Locking differential: rear
Exterior Features
Skid plate(s): front and rear
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated · Inside rearview mirror: electrochromic
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: split-bench · Rear seat folding: split · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Wheels
Wheel locks: front and rear
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Dual rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time · Axle ratio: 3.42 · Locking differential: rear
Exterior Features
Skid plate(s): front and rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: auto-dimming · Inside rearview mirror: electrochromic
Rear Seats
Type: bucket
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Heated: front seats · Rear seat folding: split · Upholstery: leather
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Wheels
Wheel locks: front and rear
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Dual rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
6 disc in-dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: full time · Axle ratio: 3.73 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Rear Seats
Type: bucket
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Rear seat folding: split · Upholstery: leather
Suspension
Air Suspension: rear · Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Leveling: self leveling suspension · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Wheels
Wheel locks: front and rear
Windows
Front wipers: intermittent · Rear wiper: intermittent