Car Warning Lights: Is My Car Going To Blow Up? Myths & Facts

-- End Ad Box --->feels different than usual, or if the vehicle is not
Today’s vehicles are equipped with an array ofstopping properly, don’t drive it!
warning lights. Of course we’re all familiar willNote: make sure that your emergency brake is not on
the seat belt warning and the door ajar indicator;or partially engaged, as this will illuminate a Red Brake
however, with the automotive industry’sWarning Light.
technological advancements there are a number of6) Yellow Brake Warning Light (Padlight): This is an
warning lights that can be quite alarming.early warning system for brake pad wear. Essentially,
Following is a Question and Answer Guide on some ofas your disc brake pads wear down, at a certain point
the more common Warning Light concerns. Note: duea sensor is tripped to alert you that you will need
to the frequency of the Check Engine Warning Light, itbrakes soon.
has a section all its own. Visit"Can I drive the vehicle, and for how long?" Yes, you
1) SRS Light (Supplemental Restraint System): thecan continue to drive. How long depends on your
supplemental restraint system is your Airbag System. Itdriving style. City drivers (city driving is generally harder
may incorporate a variety of active, passive, and evenon brakes due to the constant stop and go) will likely
pre-safe technology depending on the vehicle. Givenneed their brakes addressed before someone who
that the SRS System is a safety system, it is welldoes primarily highway driving.
monitored with numerous sensors and automatic"Will I do more damage to the brakes?" Depending on
self-tests. The slightest malfunction in this systemhow long you continue to drive you could conceivably
illuminates the SRS light.wear your disc brake pads down to the metal backing
"Can the vehicle be driven with an SRS Light on?"plate, which could then damage your disc brake rotors
Yes, at the owner’s risk. There are thousandsand, in rare cases, the disc brake calipers. However,
of vehicles on the road without SRS technology.with many of today’s brake systems, the
"Is the airbag going to blow up?" It’s unlikely.replacement of the disc brake rotors along with the
When the SRS Light is on the system is inoperative.disc brake pads is required or strongly recommended.
2) ABS Lights: The Anti-Lock Brake System WarningImportant: It is better to have your brakes checked
Light is another common occurrence in today’searly to increase the possibility of saving money by not
vehicles. The ABS system helps to keep you fromhaving to replace the rotors. However, many of
skidding out of control during braking by limiting yourtoday’s brake disc pads and rotors require
wheels from locking up/skidding.replacement not due to wear, but due to rust and
The ABS system is often integrated with tractioncorrosion; thus rotor replacement is often necessary
control and stability systems, all of which are designedanyway. Brake calipers rarely need replacing during
to keep you safe during panic stops, wheel slippage,regular brake work.
and handling.7) Air Suspension Lights (Airmatic, Air Ride, Hydraulic
"Do I need brakes?" You might, but that’s notSuspensions): Suspension Warning Lights illuminate
why the ABS Light is on. The ABS Warning Systemwhen the suspension’s monitoring system has
does not monitor disc brake pad or disc brake rotordetected a fault. Often there is a leak—either air or
wear (see the Padlight Warning section below)hydraulic fluid.
"Can the vehicle be driven?" Like the SRS system, the"Can I drive it?" Sometimes. But if the suspension is
vehicle can be driven at the owner’s risk aslower than usual, and/or the vehicle just doesn’t
there are many vehicles still on the market without thefeel right—Tow It! Extensive damage could result if
enhanced safety features of ABS.the suspension drops too low while driving.
"Why is my ABS light on? How do I reset the ABSNote: air suspension system repairs are best left to the
Light?" These are simple questions with a multitude ofbest, state-of-the-art service center you can find,
answers depending on the vehicle in question. For apreferably a dealership.
QUICK and FREE solution, follow the information and8) Tire Pressure Warning Light: This recent
guidelines for Resetting Check Engine Light, and applytechnological development causes quite a bit of
them to your ABS light.confusion. Put simply, if your tire is getting low on air,
3) Low Coolant Light: The Low Coolant Light will comeyour car lets you know via sensors mounted in various
on when the coolant drops below the coolant levelplaces depending on the model.
sensor—generally one to two quarts. If this light is on,"What is the low tire pressure warning light reset
there are two primary possibilities. The most commonprocedure?" Sometimes the reset procedure is as
is a coolant leak. The other is an electrical fault in thesimple as pressing a button. Other times one has to
warning lamp circuit. Have them checked out.set the tire pressures, recalibrate the on-board
"Can it be driven?" If there are no major leaks, thecomputer, genuflect and cross two fingers. Check
vehicle is not overheating (and does not start toyour owners’ manual or call a specialist or
overheat), and there is still some evidence of coolant indealer.
the overflow bottle, it can be driven. If you can seeNote: Local shops and franchises (for the most part)
coolant leaking on the ground—tow it. When in doubt,lack familiarity with Tire Pressure Monitoring Systems
always tow it!given that this is a fairly recent technological
4) Red Oil Light On: Stop driving immediately and shutdevelopment. You can refer to How to Reset Check
the engine off! If a Red Oil Warning Light comes onEngine Light, and follow the tips, and suggestions for
PAY ATTENTION.getting it reset.
The best case scenario is that your engine oil is a little9) Emission Warning Light: This light is similar to the
low. The second best case scenario is that there is anCheck Engine Light. Many European models such as
electrical issue with the Oil Level Warning SystemVolvos have this type of Warning System. It’s
circuit.essentially letting you know that an emissions
First, follow your owners’ manual’scomponent has failed or detected a fault. Follow the
instructions to check your oil. If low, add asCheck Engine Light information and tips to address this
recommended—make sure you don’t see itparticular warning light.
dripping or pouring out on the ground, which wouldNote: make sure you take it to a shop equipped to
indicate a “major” engine leak.handle emissions work.
If the oil is not low and your engine is making ticking,10) Resetting Oil Lights (Oil Change Warning Lamps):
knocking, or unusual noises, Tow it!Whether it’s a Toyota Oil Light Procedure, an
If everything appears ok, and you’re a bit of aOil Change Warning Light Reset 2005 GMC Envoy, or
gambler, it may just be an issue with the warning lampthe process to Reset 1999 M3 Oil Service Light, all
circuit. In this case, get your vehicle checked out atrequire a specific course of action.
your earliest convenience.Most owners’ manuals have this information.
The worst case scenario is internal engine damage.You should find it under maintenance or oil service.
Note: many of today’s vehicles have veryYou can also call your local mechanic, who resets oil
sensitive and sophisticated Oil Level Warning Systems.service lights everyday on a variety of models. A
You may be alerted of oil level too high, or oil level toodealership will certainly have the information; however,
low. Again, refer to your owners’finding someone in a dealership who can translate it
manual’s instructions.effectively may be difficult.
So whether it’s a 1993 Ford Aerostar Check OilIf the above fails, see the process for Resetting
Light, or a question of “Why does oil light flash inCheck Engine Light.
Saab automobile,” PAY ATTENTION!Note: several European models require special tools to
5) Red Brake Warning Lights: Generally, Red Warningreset the oil service light, thus it’s best to call or
Lights mean DANGER. In the case of a Red Brakevisit a specialist or dealer.
Warning Light, there may be a hydraulic brake fluidNote: This information is not a substitute for your
leak. If the brake pedal feels abnormal orvehicle’s owners’ manual. It is meant to
spongy—don’t drive—Tow It!be a general guide. Always refer to manufacturer
"Can I drive it?" If the car is stopping ok, andvehicle-specific guidelines.
you’re a gambler, go ahead. If the brake pedal