Q: While highway driving, car stopped accelerating & became inoperative

asked by on

I was driving on the interstate and all the sudden my car stopped accelerating. It became totally inoperative. I got to the shoulder of the road and had to call for a tow truck. While I was waiting for him to arrive, I noticed that there was a smell like something was burning, coming from the car. I'm not sure from where on the car though. The messages on my car’s display were “inoperative” and “see operator’s manual.” Before I allow the service department to work on my car, can you give me your assessment of what the problem is and how to fix it?

This message indicates there is a problem in the anti-lock braking and/or electronic stability program system. If the problem is severe enough, the vehicle will go into limp mode, as you experienced. The root cause could be anything from a failed wheel speed sensor to a faulty control module. The first step in diagnosing this problem is to retrieve the diagnostic trouble codes which are stored inside the module. These codes serve as a starting point for any further diagnostics. I suggest you get a trained professional to diagnose any trouble codes and repair your vehicle. The team at YourMechanic is an excellent option because we make house calls and can save you a tow bill.

Was this answer helpful?
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. While highway driving, car stopped accelerating & became inoperative

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: No power to vehicle when key is off or out of ignition!

If you are referring to Pin 14 of the OBD-II connector itself that is the low voltage "side" of the CAN bus which interconnects with associated modules. It is not clear from your description on what circuit the fault may...

Q: Warning lights come on and van stops accelerating

As you have found, this can be a nasty problem to solve, since many vehicle systems that affect this outcome are interconnected: Traction Control (TCS), ABS, etc. One approach that may still be worth pursuing (that may not have been...

Q: Q: Check engine light

Wow... 329,000 miles on your Chevrolet Uplander. Assuming you are still on your original engine, that is a long lived vehicle. If your Check Engine Light is on, YourMechanic will use an electronic code retrieval tool to download the DTC's...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...