Car suddenly switches to traction control. 2005 Lincoln Zephyr

I have a very serious problem occurring lately. While I'm driving either on the highway at higher speeds or I'm driving in the city traffic with a lot of stopping and going, the car would suddenly switch to traction control. I then have to restart the car to be able to continue driving. I would like to fix this permanently–what should I do?
Experienced mechanics share their insights in answering this question :
Hi there, thanks for writing in about your 2005 Lincoln Zephyr. Vehicle software selects traction control typically because sensors detect tire "slippage" (or differences in wheel rotation speed). This "false trigger" can be as simple as an under-inflated tire, or possibly a bad wheel speed sensor. I recommend that you have an expert take a look at your tires and wheels to determine what services are needed to address the Traction Control problem.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

One of the symptoms commonly associated with a bad cruise control brake release switch is a cruise control system that cuts off unexpectedly. If the switch has any sort of contact or internal issues, it may cause the cruise control system to cut off unexpectedly when activated, even if the pedal is not stepped on.
The most common reasons a Lincoln Town Car cruise control isn`t working are failed control module, sensor or switch issues, or throttle actuation problems.
Braking or depressing the clutch at any time will also cancel cruise control.
In some vehicles it is located under the hood and/or is a part of the ABS control module. Other vehicles may have the traction control module located in the interior or trunk areas.
Most of the time this is caused by a bad brake switch. If the switch is shorting out, then it will cause the computer to think that the brakes are being applied, which turns off the cruise control. If the switch is fine, then it may have a bad speed sensor or the cruise control switch itself is bad.
If your cruise control light remains on even after you turn the system off, you may have a problem with your speed control assembly. This issue is usually due to a malfunctioning fuse or a communication disruption in your vehicle`s computer.
To decelerate, either tap the appropriate button on the cruise control system or quickly apply the brake. As a safety precaution, almost every model of car will deactivate the cruise control as soon as the brake is applied.
One of most common symptoms of a problem with the cruise control switch is a cruise control light that will not illuminate. The light should be illuminated as soon as the cruise control system is switched on to notify the driver that the system is activated.
Cruise control can help you become more fuel-efficient and can help you save an average of 7-14% on gas thanks to its ability to maintain a continuous speed. In comparison, the constant change in acceleration and deceleration of the driver placing their foot over the pedals can eat more gas.
When this warning indicator light comes on in the dashboard, this could be an indication of several issues such as faulty wheel speed sensors, a faulty steering angle sensor, a faulty rotational speed sensor or a problem with the steering rack.
Press the gas pedal 3 times in quick succession. Then, turn your engine on all the way and let it run for a minute. The TCS and ABS lights should reset and go away if there isn`t any underlying problem with your traction control system.
To decelerate, either tap the appropriate button on the cruise control system or quickly apply the brake. As a safety precaution, almost every model of car will deactivate the cruise control as soon as the brake is applied.
As strange as it sounds, though, it`s not that uncommon to have your cruise control affected by your turn signal. Basically, it boils down to an electrical wiring issue. More often than not, the culprit ends up being a damaged, frayed, or faulty wire.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Car suddenly switches to traction control. 2005 Lincoln Zephyr
ANSWER : Hi there, thanks for writing in about your 2005 Lincoln Zephyr. Vehicle software selects traction control typically because sensors detect tire "slippage" (or differences in wheel rotation speed). This "false trigger" can be as simple as an under-inflated tire, or possibly a bad wheel speed sensor. I recommend that you have an expert take a look at your tires and wheels to determine what services are needed to address the Traction Control problem.

Car shifts hard and rpms rev high on there own or car doesn’t shift at all, ABS and traction control lights are on also. 2005 Chevrolet Cobalt
ANSWER : Hi there – first task is to be sure the transmission fluid is at the proper level, and in good condition (more pink than black, and no burned smell). Low fluid, or dirty fluid, can cause lots of unexpected transmission behavior. The second task is to check for problem codes, whether the Check Engine light is illuminated or not. The possible problem we’re looking for here is a failing throttle position sensor – which interacts with the transmission controller and affects shifting behavior. I recommend a transmission inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Oil leaking from under car and "remote control car" sound when car is first started for a few minutes until it warm up.
ANSWER : Hello,
There are a number of things that could make an engine noisy when starting up. Depending on the specific type of sound you are referring to, this will determine how to properly diagnose. If there is a bit of a hissing sound, this may be a sign of a vacuum leak. If this is more of a shrieking sound, this may be a sign of a worn out or out of adjustment serpentine belt. If there is a bit of a howling or growling sound, this may be a sign of a worn out or low on fluid power steering pump. A rattling or pinging sound may be caused by an ignition problem. An engine can ping (or knock) due to an improper combustion process. A "spark knock" is the result of combustion occurring too early. Early combustion can occur from carbon buildup inside the combustion chamber, a lean air/fuel mixture, and advanced ignition timing (spark plug firing too soon). A clattering type sound may be a result of improper lubrication in the valve train which could be a more serious problem and should be addressed as soon as possible. I would suggest having an expert from YourMechanic come to your location to diagnose and inspect your vehicle to ensure everything is in proper working order.

I put the wrong key in my car and a few weeks later my car just shut down and it will not start I believe it’s the computer but…
ANSWER : Hi there. What had happened is the wrong key set the security to the vehicle. This is to prevent the vehicle from starting with the wrong keys. Try removing the battery cables (+) and (-) for 13 minutes. During that time, put the original key in the ignition and turn it on. Activate everything in the car even though there is no power. Then remove the key and hook up the battery cables. The computer should have reset and reset the security. If the security is still being tripped, then I recommend seeking out a professional, such as one from Your Mechanic, to help you

on starting engine light & throttle control and traction control light comes on and car idols hard no codes when scanned
ANSWER : Hello, and thank you for writing in. Unfortunately the first technician is correct in that this can be cause by a wide variety of issues. Considering that it is intermittent, we can assume that there is either an electrical issue (sensor or bad connection), or that there is a particular part which is dirty or failing. There are a couple of ways you can approach this. One being that you attempt to clean, repair, and replace the many number of components that can cause this. A second being that you attempt to replicate the issue by unplugging sensors and trying various tests to try and narrow down what system is being effected. When dealing with a misfiring situation, you need to look into the air intake, ignition (spark), and the fuel systems first. One last consideration is to have the vehicle scanned by another type of code reader. They vary in brand, manufacture compatibility, and software. For more diagnostic help, contact our service department to schedule an appointment, or to obtain a quote once the issue is diagnosed.

Traction control light light/reduced power message. Engine light stays on when car turned off/on, but traction control will clear
ANSWER : Hi there. The P2135 OBD-II error code indicates that the Power Control Module (PCM) has detected an erroneous reading regarding the voltages transmitted by throttle position sensor A or B, the accelerator pedal position sensor and or the actual throttle plate. If one throttle position sensor is reading at half throttle and the other is reading at full throttle, the PCM will set a code P2135 because the voltage readings will be so remote that it is impossible for the data to be accurate. Typically, once a professional mechanic downloads all stored error codes, they will test drive a vehicle to try and replicate any symptoms you’re experiencing to correctly diagnose this problem. Once they determine what damage has occurred to sensors, or electrical connectors, they’ll be able to recommend repairs that will fix your issue. You should start by having a professional mobile mechanic complete a check engine light inspection first.

Traction warning on, unexpected deceleration
ANSWER : It definitely sounds like there is an issue either with the engine management or traction control system. Fault codes need to be read out to see if there are any underlying issues causing these malfunctions. One common input to both systems is the MAF sensor.

There is a TSB that discusses contamination of the MAF can affect not only the engine management system but also have adverse effects on both the traction control and transmission control systems. So the first place to start is to have the fault codes read out. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools and expertise to interrogate these systems, diagnose the issue, and repair the system to prevent these malfunction from occurring in the future.

Battery and oil light come on when trying to start car, take keys out try again car starts no problem and lights go away
ANSWER : Of course, don’t switch gears without being fully stopped, unless your Owner’s Manual or the manufacturer has alternative advice. However, the gear shift issue has no relation to the no-start problem you are describing. Inasmuch as you only have 6,000 miles on the car, the "constant on and off" that you believe has occurred is meaningless in comparison to the expected total vehicle service life. That is, assume what you perceive as "constant on and off", during merely 6,000 miles, might be equivalent to using the car "normally" for three years. A new car should be trouble free for at least 5 years, unless there is a defect, so your "constant on and off" is not a causal factor for any fault on the vehicle. What you might have is a defect in the ignition switch, or perhaps the immobilizer system, but if the problem is not in the switch itself, clearly there is an electrical problem.

If your vehicle is under warranty, by law the dealer MUST repair the issue you are describing within a prescribed time frame and number of "attempts", otherwise the dealer will run afoul of Federal and state Lemon Laws that give you very specific rights, and recourse (contact an Attorney; we are Mechanics, NOT attorneys). Consequently, if the vehicle is still under warranty, to save yourself money do be sure to seek a resolution from the dealer. If the vehicle is not under warranty, obviously a certified Mechanic from YourMechanic could identify the electrical fault and resolve this for you. If you want to go that route, please simply request a no start diagnostic -electrical system and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.