Skip the auto shop - Our mechanics make house calls

Q: Antitheft key light on jeep wont start

asked by on

My jeep was running fine. Then last week I went to leave and it would crank but would not start. None of the guages on my dash work, and the key light shows. I have checked the battery and all fuses. O have not done anything new to the vehicle prior.

My car has 215000 miles.
My car has an automatic transmission.

A: Hi there, thanks for writing in. You may be...

Hi there, thanks for writing in. You may be having an issue with the anti-theft module on the vehicle. I recommend first try a different key to see if it is the key having an issue. Make sure to not have anything metal on the key ring. If the problem still occurs, then try disconnecting the battery and waiting 10 minutes and then reconnect it. If it then starts okay then it may have just got a voltage spike and problem is gone. If problem persists then the anti-theft module will need to be tested and reprogrammed or replaced by a dealer since they have the special dealer code to activate the module.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make any repairs as needed. Hope this helps and best of luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: For several years now I've had issues with my electronic throttle light coming on

If replacing all the components that pertain to the throttle did not work, then the only thing left is the engine control module (ECM). I have seen where the ECM has fixed the same issue on other same vehicles. Make...

Q: Best way to install a kill switch

For this, what you'd want to do is put the kill switch on the power wire that goes to the starter, that makes the starter engage. Because then, if somebody tries to steal it, the starter won't go. But if...

Q: Should I be able to spin front wheel by hand while other wheel is on the ground

Hey there, thanks for writing in about your 2002 Jeep Grand Cherokee. Make sure that you are not in four-wheel drive mode. Sometimes when the hubs lock, they make a clunking noise and the whining noise could be a gear...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.