Burner element will not stay on

does it have daytime running lights that sensor could be bad or signal light switch ...signal to the opposite side light goes out to see if comes on

Your post is lacking any detail. However, if you are stating that the engine starts after being cranked but dies out (wont stay running) there are 2 ways the fuel pump is activated. When the key is first turned on, there is a 5 second fuel pump run (the ECM energizes the fuel pump relay). After the engine starts, the fuel pump relay will only stay energized when the oil pressure switch closes keeping the fuel pump relay on (oil pressure is above 5-7 psi). If the oil pressure switch is faulty or there is no oil pressure, the engine will stall just after starting.

there is loose contact with the heater wiring

When signal lights stay on at indicators there's usually bad bulbs or the headlight switch is no good it's a self warning in the system check the bulbs for good elements if okay I'm pretty sure that the headlight switch is n / g

TURN THE IGNITION SWITCH TO THE ON POSITION FOR 10 MINUTES WITH ENGINE OFF.UNTIL SECURITY TURNS ITSELF OFF.THEN TURN OFF IGNITION SWITCH WAIT 5 SECONDS.THEN START THE ENGINE.IF SECURITY STILL ON DEALERSHIP HAS TO FIX.

CHEVY GMC SEAT HEATER TROUBLESHOOTING

yure ignition switch is sticking in the start position for a few seconds

IF YOU GOT 2 SETS OF KEYS TRY ANOTHER IGNITION KEY.THAT NOT WORN.TURN ON IGNITION FOR 5 SECONDS.SWITCH THE IGNITION OFF.WAIT APPROXIMATELY 5 SECONDS.SWITCH IGNITION ON FOR APPROXIMATELY 5 SECONDS.SWITCH IGNITION OFF.WAIT APPROXIMATELY 5 SECONDS.START ENGINE.IF STARTS OTHER KEY WAS WORN.IF CAR STILL DONT CRANK.THE DEALERSHIP HAS REPLACE KEYS AND ANTI THEFT SYSTEM AND REPROGRAM TO CRANK.ALSO CHECK TO MAKE SURE THE NEUTRAL START BACK UP LIGHT SWITCH IS WORKING.IF FAULTY IT WILL ALSO CAUSE NO START PROBLEMS.

its only a guess alot of times even the dealer cant find out what the problem is and they just keep trying parts till they get it to work

Usually when your signal blinks rapidly it indicates a blown bulb.   Switch on your four-way flashers and check your bulbs at each corner.  On the brake light staying lit, check to see if the left-rear bulb is installed correctly and is the correct bulb for the application.  I've seen people force bulbs in sockets causing the braking element of the bulb to light instead of the parking element.  The braking element is much brighter than the parking element.