My master warning light appeared after the car was jumped. The car was parked for 6 days and would start. It started after several attempts jumping the 12 volt battery

Using the key FOB, turn off the alarm/unlock once the jumper cables are attached and then try to start.

When it's running is the ignition light on?

Otherwise, might the battery require renewal?

your battery is so dead and or shorted it won't allow enough current to keep the truck running it could be a wire ground or positive not allowing enough current take the battery back to the place of purchase and have it tested it should be under warranty.I wouldn't try to start it by jumping it anymore try a fresh hot battery I think it will fix it

run fault codes to check for damage done when jumping the battery as a surge will blow the ECM/CPU. If no codes then use the code reader to reset the light.

Sounds like high resistance in the starter circuit wiring. You should check resistance between the starter and battery, with the battery DISCONNECTED, and ensure that the number is pretty low anything more than a few ohms is too high for this connection.

battery is bad! check this: when car is running the battery voltage should be at least 14.3 volts or a little higher. when engine is off battery voltage should be at least 13 volts, if the voltage going into battery is below 14 volts when running then alternator is bad. if it is ok then battery needs replaced,

Replace the battery

If the battery is VERY dead it may take quite a while jump start the car. You may have to run the car with the good battery for five or ten minutes to get enough charge in the old battery to start the car. Other wise a very dead battery will just "soak up" the electricity from the good battery. If your battery was old to begin with it may be unserviceable. I would take the battery out and take it to an auto parts store that can charge and test it. They will usually do this for free.

Firstand foremost,this snota problem for a echanic tooodagnose. Ifurbatery isdrainng, u shouldcek to cifur charging system is functioningproperly. Ifur ABS lite iscoming on, probaly during dis-assemby, something went wrong witur sesors. check it out with someone knowledgeable and experienced

Sounds to me like you have a weak batt. also if you rear lights are sticking on some times that could drain it