How do I start my car when the ignition is locked?

If you press the unlock button on the key fob twice when you first unlock the car this unlocks all the doors and the boot. If you have only pressed it once only the drivers door is unlocked. If you have only pressed it once and you have started the car push the locking button on the door and the pull it this will then unlock all the doors and boot too so you don't have the turn the car off and press the unlock button on the key fog again. The locking button or lever is located above the door opening handle inside the car the smaller one of the two

Try reporgraming it

1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into the ignition (Do NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.
5. Press any button on remote for a minimum of 1 second.
System should now lock and unlock doors once.

6. Close and open drivers door.
7. Press any button on remote for a minimum of 1 second. System should now lock and
unlock doors. Once to confirm programming, twice to indicate programming failed.
8. Repeat steps 5, 6 and 7 for additional remotes.

• Use the key. Insert the ignition key into the lock on the driver's side and turn the key counterclockwise until you hear a thump. Return the key to its original position and remove it from the lock.
  
• 2 Use the remote control for keyless entry. Unlock the doors with the remote control on your key fob. Press the button with the picture of an open lock once to unlock only the driver's-side door and twice to unlock all the doors.
  
• 3 Call OnStar. OnStar can unlock your car remotely regardless of your location. You must have an active subscription to OnStar and your personal identification number (PIN) to unlock your Silverado this way. OnStar is free for one year on all new GM vehicles, but you must pay a monthly fee after the subscription expires if you wish to keep the service active.
  
• 4 Call a locksmith. A locksmith can unlock your Silverado if you do not have your key.
  
• 5 Break a window. As a last resort, you can break one of your truck's windows and unlock your door from the inside. This will probably set off your Silverado's alarm. If you find your key inside the truck, put it in the ignition immediately after unlocking your door and turn the starter to the "On" position to deactivate the alarm.
  

reprogram the remote transmitter. first leave driver door open all other doors closed,key removed from the ignition switch. insert key into the ignition switch,then remove it.press lock and unlock on the vechicle door lock control switch at 1 second intervals 5 times. close and repoen drivers door.press lock and unlock on the vechicle lock control switch at 1 second intervals 5 times. insert key into ignition switch. switch ignition on and off twice to program a remote transmitter code whilst erasing the original codes or three timre to check how many remote transmitters are currently registered.remove key from the ignition switch.system should now lock and unlock.twice to indicate programming mode or one to four times,slowly to indicate number of remote transmitters registered.for the solara press and hold lock and unlock remote buttons together, press lock remote button for a second period of 1 second. system should now lock and unlock vechicle.once to confirm, twice to indicate registration has failed.if required repeat button procedure to program remaining remote transmitters.note to exit programming mode close drivers door or insert ignition key.maximum of 4 remote transmitters can be programmed.if akk failed let dealership reprogram remote transmitters.

1. Driver's doo opend and unlocked, all other doors closed and locked
2. Inser Your key in ignition, don not turn, remove key
3. using the manual lock/unlock button on ther dirvers door, slowly press lock and unlock 5 times (count the lock 5 times and unlock 5 times)
4. Shut door
5 Open door
6. Using the lock/unlock button on the direvers door, slowly press and unlock 5 times (count the lock 5 times and the unlock 5 times)
7. With the door open insert you key into the ignition, turn to ON position (don't start), wait 5 seconds. Trun off and remove key.
8. Locks should cycle once (Car will lock and unlock once). If they don't cycle or they cycle more that once, do stips 1-7 over.
9. Using the remote, push lock button, hold for 1 second, release. The locks should cycle once. If not start over and go slower.
10 Close the door. Open the door. Press the lock button on the remote. The locks should cycle. Close the door. Press the lock button on the remote, the doors should lock. Press again and the doors shoud unlock.

I got this from a site called FixYa (don't have URL). It took me a few tries but it worked like a charm.

1. sitting in driver seat, with driver's door OPEN, press lock/unlock button ON THE DRIVERS DOOR to lock all doors, then manually unlock driver door only.
2. Insert YOUR key in ignition, DO NOT TURN, then remove key.
3. Using the same lock/unlock button ON THE DRIVERS DOOR, slowly press lock-unlock in 5 cycles
4. Shut door.
5. Open door.
6. Using the same lock/unlock button ON THE DRIVERS DOOR, again slowly press lock-unlock in 5 cycles
7. With the door open insert your key into the ignition, turn to 'on' position (DON'T START), wait 5 seconds. Turn off and remove key.
8. Locks should cycle once (Car will lock and then unlock once by herself). If they don't cycle or they cycle more than once, do steps 1-7 over.
9. Now using the remote, push lock button, hold for one second, then release the button. The locks should cycle once. If not, start over and go slower.
10. Close the door.
11. Open the door.
12. Press the lock button on the remote. The locks should do a lock-unlock cycle.
13. Close the door
14. Press the lock button on the remote, the doors should lock.
15. Press unlock button and the doors should unlock.

1. sitting in driver seat, with driver's door OPEN, press lock/unlock button ON THE DRIVERS DOOR to lock all doors, then manually unlock driver door only.
2. Insert YOUR key in ignition, DO NOT TURN, then remove key.
3. Using the same lock/unlock button ON THE DRIVERS DOOR, slowly press lock-unlock in 5 cycles
4. Shut door.
5. Open door.
6. Using the same lock/unlock button ON THE DRIVERS DOOR, again slowly press lock-unlock in 5 cycles
7. With the door open insert your key into the ignition, turn to 'on' position (DON'T START), wait 5 seconds. Turn off and remove key.
8. Locks should cycle once (Car will lock and then unlock once by herself). If they don't cycle or they cycle more than once, do steps 1-7 over.
9. Now using the remote, push lock button, hold for one second, then release the button. The locks should cycle once. If not, start over and go slower.
10. Close the door.
11. Open the door.
12. Press the lock button on the remote. The locks should do a lock-unlock cycle.
13. Close the door
14. Press the lock button on the remote, the doors should lock.
15. Press unlock button and the doors should unlock.

Long beep to follow if successful.

Remote Programming Instructions

1. Driver's door OPEN and unlocked, all other doors closed and locked.

2. Insert YOUR key in ignition, DO NOT TURN, remove key.

3. Using the MANUAL lock/unlock button ON THE DRIVERS DOOR, slowly press lock and unlock 5 times (count the lock 5 times and unlock 5 times).

4. Shut door.

5. Open door.

6. Using the lock/unlock button ON THE DRIVERS DOOR, slowly press lock and unlock 5 times (count the lock 5 times and unlock 5 times).

7. With the door open insert your key into the ignition, turn to on position (DON'T START), wait 5 seconds. Turn off and remove key.

8. Locks should cycle once (Car will lock and then unlock once). If they don't cycle or they cycle more than once, do steps 1-7 over.

9. Now using the remote, push lock button, hold for one second,
release. The locks should cycle once. If not, start over and go slower.

10. Close the door. Open the door. Press the lock button on the remote. The locks should cycle. Close the door. Press the lock button on the remote, the doors should lock. Press again and the doors should unlock.

ok get in the car, close the door, make sure all doors are closed.... put the key in the ignition, turn the key to on but without starting the car (lights on dash light up only) press and release the key lock button, turn key to off, without removeing the key.. turn to on without starting the car (dash lights up only) press and release the key lock button again, turn the ignition off, without removeing the key then turn back on (lights on dash on only without starting the car, press and release the key lock button , turn off the ignition without removeing the key, ..turn on the ignition once more without starting the car , press and release the key lock button and u should hear the door lock cycle ....leave the key in the ignition ... now press the lock button or unlock button on the other remotes one at a time if u have them.....u should hear the lock cycle indicateing all remotes are programmed.... kind of tricky to explain but you will get it, the sequence of turnin the key in the ignition on and off is only done with that one first key,,, remember after the door lock cyles press the lock or unlock button on the other remote fobs if if any...and ur done..may take u a few trys.. let me know how it worked out.

try this:

1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into the ignition (DO NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.
5. Press any button on remote for a minimum of 1 second.
System should now lock and unlock doors once.

6. Close and open drivers door.
7. Press any button on remote for a minimum of 1 second. System should now lock and
unlock doors. Once to confirm programming, twice to indicate programming failed.
8. Repeat steps 5, 6 and 7 for additional remotes.