Wont turn off
My Cadillac Escalade ext2003 will not turn off.

For 2003, the Cadillac Escalade EXT got enhanced stability control as well as power-adjustable pedals for improved braking and acceleration. This SUV-pickup truck also got some cool new options including XM radio and DVD player. In its second year of production, the Escalade EXT has 4 doors, seats 5, and comes in one trim: AWD Crew Cab SB.
As for the powertrain, the 2003 Escalade EXT sports a 6.0 L, 345 hp V8 model with 4 speed automatic transmission. Gas mileage comes out to 12 mpg in the city and 16 on the highway. Standard features include air conditioning, power windows, power door locks, power/leather seats, cd player, ABS brakes, traction control, and stability control. Options include navigation system and sunroof. The 2003 Escalade EXT tows up to 7900 lbs., a slight upgrade over its successors. Finally, you and your passengers will have plenty of room to stretch with 120 cubic feet in the interior.
Overall, drivers enjoy the Escalade EXT's power and extensive features. On the other hand, consumers would appreciate better gas mileage and a more affordable price tag. These qualities appear year after year in Escalades of all types, so don't say we didn't warn you if you get stuck on the road in between gas stations. Cadillac intended for the Escalade EXT to roll around in hoods across the nation, so drive accordingly.
My Cadillac Escalade ext2003 will not turn off.
Im having a problem its all wheel drive when i put it in reverse it makes all kind of noises and feels like prakes are on and when your drive ing it wont shift to 3rd gear
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
6 disc in-dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · 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
Exterior Features
Paint: special factory paint
In Car Entertainment
Video system: DVD player
Lights
Exterior entry lights: security approach lamps · Headlights: HID
Mirrors
Exterior mirrors: auto-dimming
Rear Seats
Type: split-bench
Roof
Moonroof: power · Roof rack color: black
Safety
Parking sensors: rear
Seats
Front seat type: bucket · 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 · Suspension control: electronic
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Windows
Front wipers: intermittent