Q: DSC, ABS, Handbrake Light Stays On

asked by on March 08, 2017

Hi! Sometimes when I start my car, it throws up the DSC, ABS, Handbrake lights. If I recalibrate the system by turning the steering wheel from lock to lock and restart it, the lights disappear. Same happens sometimes when I'm braking to stop at a light or when going 0-5 km/h in a traffic jam. I noticed that, sometimes the lights come up when the rev drops (pushing the clutch in a lot of times and the engine tries to compensate or when turning the steering wheel on a 90 degree turn and the power steering lowers the rev). This winter the lights came up only 1-2 times in 3 months... now in the spring, the weather is good the lights are coming up every 1-2 days on start and sometimes in the city while driving.
My car has a manual transmission.

Warning Light is on Inspection $79.99 - $99.99 Get a Quote

Based on your description of the problem, I would guess that you have a bad wheel speed sensor or a tone ring that is jammed up with rust. The tone ring is a ring on the wheel hub with slots cut into it that the sensor reads to determine wheel speed. The signals are not as strong at low speeds, so when the sensors fail, of the rings get dirty, the problems first show up when you are moving slowly. It shouldn’t be hard to find the culprit. When the controller for the ABS and other systems sense a fault, a code is stored in the controller, even after the light goes out. So it’s a simple matter to scan the controllers and retrieve the codes to get a factual account of the problem(s). But It will have to be a BMW capable scanner. The Generic ones they use and sell at auto parts stores won’t do the trick when it comes to ABS and DSC systems. To have the system scanned at your convenience, you can contact Your Mechanic. They will send a technician with the proper equipment to your home or office to scan your BMW and let you know what it needs to fix it.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $65/hr

What others are asking

Reduced engine check engine

It is possible that this could be related to your mass air flow sensor on your 2001 Honda Passport. The mass air flow sensor and the throttle position sensor work in conjunction with each other to send signals to the...

Hit a gutter and busted my tire, but it started leaking on the driver's side. What's the problem?

Hello. It may have possible that you ran over something and it punctured the drivers side tire at or near the same time you hit the gutter on the passenger side. In order to find a leak in a tire,...

Entire bank1 misfires, and lower compression. 1997 BMW 540

Hi there - yes, it is possible to have cam timing for one cylinder bank off after a timing chain component repair. Way too easy actually with this engine! If you did not loosen the cam sprocket to cam bolts...

ABS Brakes VSC

That is a code for the yaw rate sensor. It may be able to be cleared after a zero point calibration is carried out on the yaw rate sensor with a scan tool capable of resetting the yaw rate sensor....

I was driving and my dash lights and everything turned off and eventually my car started losing power

It could be that your alternator has failed and for some reason you didn't get any warning lights. Usually you can drive a car with a bad alternator for a few hours before the battery voltage is too low to...

Chevy 5.3l - Lost oil pressure, why?

Hello - since you didn't appear to be leaking oil in a significant way (busted oil line, hole in the pan), I suspect that the oil pressure relief valve may have been stuck in the "relief" position. Some of the...

Buying used BMW 2009

Nothing adverse appears on the Carfax report. There don't appear to be any outstanding recalls. Inasmuch as used car repair, maintenance, and restoration costs are highly dependent on the actual, as found, condition of the vehicle, the only way to...

Belt, pump, and gauge problems

Hello! There is likely an issue wth the oil pressure sensor causing the flashing Oil Light. I suggest having a technician test the sensor by the use of a multimeter. Also, be sure to have the oil level checked; a...

Differential Noise

Hello. The noise you are hearing could very well be the differential. The fact it becomes worse when you accelerate is a good indication. The best way to tell is simply to do an inspection. Changing the oil regularly is...

Related articles

How Long Does an Anti-Lock Fuse or Relay Last?
Today, Today, vehicles have braking systems that are far superior to what they used to be. Late-model cars still have traditional braking systems, but they are backed up by ABS systems that prevent your wheels from locking up when you...
How to Purchase a Pre-Owned BMW
BMW BMW offers a wide selection of luxury cars. In many circles, owning a BMW is a sign of success. While most balk at the price of a brand new BMC car, pre-owned models provide a viable alternative if you...
How Disc Brakes Work
Car disc brake systems are made up of the rotor, brake pads, pistons, and caliper. The pistons push the pads into the rotor to slow or stop your car.