Skip the auto shop - Our mechanics make house calls

Q: Keyless Entry Security system problem

asked by on

I have a 2004 Toyota Highlander that has a keyless entry system. Today I decided to check my oil and tire pressure. When I was done checking the oil, I shut the hood and got into the car to start it but nothing happened at first. Then the alarm starting going off along with a weird clicking noise. I turned the alarm off but the clicking noise continues. I read through the keyless entry security manual and tried just about everything I could but the car still will not start and the clicking noise continues. Please Help!

My car has 131000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. This is likely related to the anti-theft system in the car going into safe mode. This can be caused for a variety of reasons such as dead or weak battery or a short in the theft system. I would recommend taking the car to the Toyota Dealer to have the computer reset as this will usually correct the system’s misdiagnosed theft of the vehicle. While doing this, I would also recommend showing them the batteries (both the car and key fob) to be sure this is not the problem.

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!
  1. Home
  2. Questions
  3. Keyless Entry Security system problem

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have 2004 Mercury Sable. It randomly stalls, after putting in gas, on hot days, will start after resting AC goes hot during buck

Hi Sandy. Thanks for all the information - it's very helpful to initially provide some technical advice. It appears as if you might have a few different things going on with your Mercury Sable. First, in regards to the engine...

Q: A 2002 Toyota Highlander how many catalytic converters does it have?

Depending on the options your car came with from the factory (single exhaust or dual exhaust), your car should have one or two catalytic converters. I would recommend having a certified expert, like one from YouMechanic, come to your home...

Q: Can't drive car due to alarm system

The best course to start the diagnosis is to have the aftermarket alarm removed and the vehicle put back to original factory specification to see if the aftermarket component is the cause of the failure. You may need to enlist...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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.