Skip the auto shop - Our mechanics make house calls

Q: Warning lights appear and car goes into limp mode

asked by on

The stability control, airbag, and engine lights came on while I was driving a few days ago and when they did, my SUV went into “limp mode” and decreased in engine power. It was sudden and totally unexpected. Fortunately it did not cause an accident, but it could have and we would not have had any airbag safety. This has happened several more times before I could get the car into the shop. On the first visit, they told me that if the engine light was not amber or flashing, then it was safe to drive the SUV. It has been 30 days and my vehicle is ‘still’ in the repair shop. They have not found any solution for this problem. Can you give me suggestions and/or advice how I can get this problem fixed?

A: Hello. Limp mode is a feature that was set ...

Hello. Limp mode is a feature that was set in place to protect the engine and/or transmission from further damage, and to give the driver enough time to get off the road in the event of a serious engine malfunction. Most commonly, when a vehicle goes into limp mode, it is the result of there being a problem with one or more of the vehicle’s computers. There are multiple possibilities for why your vehicle went into limp mode. This could have happened as a result of a problem with the speed sensor, the manifold absolute pressure (MAP) sensor, the throttle position (TP) sensor, or the line pressure, shift timing, or sequence of the transmission.

However, these are only some of the possibilities of what may be causing your vehicle to be in limp mode. It is unusual that it has taken 30 days for the shop to diagnose this problem. The dealership might be a better alternative as dealerships have more access to information that may be necessary to properly diagnose this problem. They also have specialized computers that would be able to pinpoint the problem fairly quickly. My suggestion would be to have the car transferred to a dealership to have a proper diagnosis completed.

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

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: Highway speeds interfere and distort Bluetooth

Hello. If the original bluetooth system is unable to be repaired, another option that you have is to remove the original bluetooth system with an aftermarket system. It sounds like there may be some interference with the bluetooth connection and...

Q: Transmission jerks, goes into limp mode, loss of power - 2006 Mercedes-Benz B200

Hello. It sounds like there is a problem with either the transmission control module and/or its wiring. There could also be a problem with the transmission valve body or clutches and if either of these are worn out this may...

Q: How do the driver and passenger front dual-stage air bags work?

Your car offers some pretty advanced safety technology, including dual-stage front air bags for both the driver and the front passenger. These are different from older air bags in that they can inflate to different degrees. This is an important...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...