Q: Navigation screen, backup cam, and bluetooth not working

asked by on

The dealership just replaced my battery last week. This week, the navigation screen, backup cam, and the bluetooth quit. All other electronic components are fine (all buttons, radio controls, A/C - all work well). I returned to the dealer and they claimed to have taken the unit apart and they can’t diagnose the problem. They said that I’ll have to have it replaced for $2K! Could this have happened from a faulty battery installation and what is your advice?

Hello. This could have been caused by a faulty battery installation. When the battery is not installed properly it may blow with the 100 amp battery fuse, which can be costly to replace. However, it is also likely that your radio unit coincidentally malfunctioned right after the battery was installed. There are cheaper options that you can find to replace your head unit. It is also possible for the dealer to send your head unit back to Lexus and have them repair it. This may be cheaper than buying a whole new unit. If you want to have this looked at by an independent mechanic, a technician from YourMechanic can come to your car’s location to diagnose your electrical problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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. Navigation screen, backup cam, and bluetooth not working

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: How long should my front brake pads last on my lexus 350, 2008year?

Hello, great question! Brake pads can last anywhere from 25,000-70,000 miles. It has a lot to do with your personal driving habits, and the quality of the brake pads you purchased. You should contact whomever replaced the pads and ask...

Q: Can I Only Use the Rearview Mirror to Drive in Reverse?

The rear-view mirror in your vehicle is one of several mirrors that we use to gain a safe view of the other cars and obstacles around us while driving. Typically, as the name implies, the main purpose of this mirror...

Q: How Do I Check the Voltage of My Car Battery?

You can get a general idea as to whether your battery is suspect by the voltmeter gauge in your car if it has one. These gauges are not too accurate as they are marked in wide increments and are really...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...