My son is on a cross-country trip with car and wonder if this needs immediate attention due to an eminant malfunction or if this is just a light that tripped at 60,000 miles to remind about a service that needs to be done.
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It's got you in limp mode. Go to the dealer. The engine is trying to protect itself. Check oils /transmission /Rad fluid. And make sure the emergency break is off. You could try disconnecting the battery for 10 min to clear the fault codes. And restart. If it picks up the code again you know it is a problem that needs immediate attention.
Sounds like a fault with the Antilock Braking System. The vibration in the pedal is the ABS working. With your foot on the brake pedal, it releases and re-applies the brakes to stop a skid from the wheels locking up. You need professional service for brakes.
Seems to be a known issue on all Cadillac and requires the ABS module to be replaced.
These icons are yellow and as such do not generally mean there is immediate danger, but rather to alert you that service is needed when lit. There may be little or no change to the way the car drives or handles when these colored indicators are on (Check Engine, Service Engine Soon, etc.).
Red icons on the other hand indicate a serious condition that requires immediate attention when lit. This usually means stopping and shutting the engine off (Oil, Temperature, Brake, etc.).
The icon to the right of the Tachometer is the "Anti-lock Brake System" (ABS) indicator. This is not the normal state when lit. This means there is a problem with the antilock brakes but your regular brake system is working. You may experience longer stopping time in a "panic stop" due to locking up the brakes.
The Icon above the Odometer indicates the "Traction Control System" (TCS) or "Traction Assist" (TA) is *not* engaged. This is NOT the normal state. The TCS / TA is a secondary function of ABS, so it is not unusual to see these come on at the same time as a result of the same problem.
These systems are in cars made in the last 15 or so years and provide safer starts and stops via computer control of the application of the brakes. You should bring the vehicle to a trusted mechanic or dealer for proper diagnosis and an estimate for repairs. Until then, the vehicle *should* operate as normal, except in cases of slippery roads or emergency / panic stopping.
It's usually the sensor inside the wheel hub or the wiring harness to the brake controller. The service traction light will set a trouble code. If your mechanic is stumped, authorize him to call a GM tech support line. The call is $50, but the GM tech support can help him figure out what's wrong.
There are many sensors on the car, engine ,transmission, antilock brake and traction control depending on the model, some sensor failures can cause driveability problems and some may be emission control related issues which may not affect performance, the sensors are there to let the computer know when there is a problem which usually turns the check engine light on or one of the other systems, on todays comoputer controlled cars these sensors are absolutely necessary for emission controls and genral performance and safety issues.
I believe your talking about the traction control warning. Does it sort of look like a car that could be sliding on wet pavement? if so the light means either the wheels are spinning and not gripping or the traction control feature is disabled and needs attention.