Skip the auto shop - Our mechanics make house calls

Q: Multiple warning lights on and speedometer doesn't work

asked by on

This morning when starting the car, these lights came on: brake, traction control, and airbag lights - all came on and ‘stayed’ on. After driving, the speedometer is no longer working either. So, I replaced the rear brakes (it was time). I had replaced the front pads one month ago. My OBD scan tool now shows no codes are present. The problem doesn’t seem to be related to the ignition. One other note is that the cruise control works well. What do you suggest to correct all these problems?

A: Hello. It sounds like you have a bad vehicl...

Hello. It sounds like you have a bad vehicle speed sensor. The sensor fails causing the speedometer not to work, which causes these lights to come on since they need to see a speed signal. The sensor and wiring should be tested first, but it will more than likely need the sensor. If you want to have this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your warning lights and resolve these issues.

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: My speedometer needle starts under zero, so when I'm going 40, my speedometer shows 20

Hi, thanks for writing in. The issue you describe indicates that the speedometer needle is now misaligned on the gauge shaft. This can repaired by a knowledgeable speedometer repair facility. The instrument cluster (with the speedometer) must be removed from...

Q: Having the engine stall now, at random

A car that stalls unexpectedly can be unsettling. As for your inquiry about an easy solution, the engine doesn’t need to be inspected but everything involved in getting the engine to run does. To help aid in the diagnosis, let...

Q: Safety belt and airbag warning lights on - 2010 BMW 538xi

The SRS system should have faults read out but based on your description, the seat mat sensor in the passenger is most likely the cause. The seat occupancy sensor is used in both determining air bag deployment and seatbelt pyrotechnic...

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 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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.