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try another key it sounds like the imoblizer

The light is telling you that it is time to perform regular maintainance on the vehicle. If it is not reset even after an oil change, after 10,000 miles it will stay on after the vehicle is started and remain on until it is reset. I would suggest getting any required maintainence done on the vehicle but you can reset the light yourself if you want. The way to do it is turn the ignition switch to the off position, engine not running. Push and hold the select/reset button to the right of the speedo in the instrument cluster (see arrow in picture below) and hold. While keeping pressed in, turn the key to the "on" position (not starting the car). Remain holding the button down for about ten seconds or until the light goes off. That should reset the maintanence required light for you and gives you 10,000 mile more until it does it again. I hope this helps and good luck.

You need an OBII scanner to reset the light. You can buy one for about $60 or any good parts store can reset it for you, most will do it free

Hi Caes431,
It would not be enough just to have the codes cleared. Whatever caused the warning to come on the first time, must be attended to and rectified. As the warning is still coming on it means the reason has not yet been attended to.
The vibration as you've described it may be caused by the same problem, as it would seem to be coming from rough engine performance and could be related to the emission control.
The jolt you're experiencing would seem to be something to do with the brakes....I would suggest that further investigation is required with particular attention paid to the fitting of the calipers.
Regards Jonhgee10

Turn the key off, hold down the odo button on the dash, turn the key on and keep holding the odo button for about 7 seconds. The display screen on the dash will start to flash, release the button and press it down again and keep holding it until the display stops blinking. All done.

Nothing to be sorry about. Take the vehicle to Auto Zone, Advance Auto parts or O'Rielley's auto parts and ask them to use their code reader to identify the Fault code. That will tell you where the problem is and then you can decide where to take the vehicle to do the repair or if you want to try repairing it yourself.

theres no problem, its set to come on every7500 miles just to remind you to do the service, like oil changes etc, all you do is make sure mileage is showing in display, then turn key off, then push the button that shows the trip mileage hold that button in then turn key on but dont start truck make sure dash lights come on like when starting,okay continue to hold button may take 15 -25 seconds until you see maint light go off, done.hope this helps.

groan.....gunna need a bit more info. but i'll try. What portion of the ignition was ripped out? The tumbler + switch? If so, you might need to get the car's system resent to recognize that it has a new ignition put in. Sime vehicles have a theft prevention system in place to prevent the vehicle from running if its been hot wired. Your best bet would be to replace the damaged ignition components (You did not mention if you did or not). If it still doesn't work after you have replced all of the ignition components. You can try to reset the vehicle (doesn't work on all) disconnect negative battery terminal and go back into vehicle and press down the brake pedal for about 30 seconds then reconnect battery and try it....good luck, hope this helps