Q: collision sensor goes off

asked by on

My truck started having issues when the Collision Sensor went off. It happened when I was driving down the road doing 25 to 50 mph. When the sensor would go off I could feel the break at the same time. I was only driving, not breaking, not turning only driving. The GMC dealer cannot find anything wrong. So I brought it back home. Then 3 days later it happened again. Can you please help me figure out what the problem is? Thanks.

Hello. It sounds like there may be an intermittent problem with the collision sensor. Keep in mind that intermittent problems are some of the most difficult to diagnose. When the sensor has an intermittent problem, it may cause the truck to slow down on its own when it shouldn’t. If your truck is still under warranty, it is best to take it back as soon as possible every time this happens so that they can see what is wrong with the car at the time it happens. It will be easier for them to make a determination because it is an intermittent 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
  1. Home
  2. Questions
  3. collision sensor goes off

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: Car stalling while idling and driving

While there are no official technical bulletins put out by Nissan there is quite a bit of documented cases where replacement of the crankshaft and camshaft sensors have corrected these stalling issues while idling and driving. Before throwing sensors at...

Q: oil low 2000 miles

Hello. When vehicles have higher mileage, it will burn oil faster and will lose a half-quart to a full-quart every 1,500-2,000 miles after the oil has been changed. This is normal for vehicles with higher mileage and does not require...

Q: Car shakes when idling

I know these vehicle symptoms all too well. If your GMC Yukon runs better after it has warmed up then it is likely that it is experiencing a vacuum leak in the intake manifold gaskets. It is not uncommon for...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...