What does bas light mean - 2009 Jeep Liberty

This is an ESP / BAS Trouble Indicator symbol, meaning Electronic Stability Program and Brake Assist System ().These systems work together, and a fault in either or both will cause the light to come on. Have it checked out just go to your local auto supply store like Auto Zone are Advance auto they have a hand held devise that can check it out at no cost. :-)

http://www.chargerforumz.com/showthread.php?t=143525

If you read through the discussion in the link above, it explains how to reset the esp bas system.

what does the operators guide say , BAS means.
in the glove box. manual.

My 2009 jouney is having the same thing the esp and bas lite is on . What to do ?

If the light is on, that means a trouble code is stored in the computer. Get the code and you'll have a starting point for diagnosis. The fact that it comes back on after resetting means you haven't fixed the underlying problme.

ESP = electronic stabilitly program, BAS = brake assist system. There could be a number of issues causing these lights to come on. Loose sensor connector at one or more wheel locations. Build up of dirt and grim on the sensor or sensor wheel can also cause these lights to come on, These are the two easiest thoings you can do, otherwise, a service call will need to be made at your local Jeep dealer due to the complexity of this system.

Hi there,

ABS: this is your Anti-lock Braking System.
BAS: this is your Brake Assist System.

The first thing I would suggest you check - press the brake pedal and confirm if your brake lights work. If not, then you have a faulty brake switch (on the brake pedal).

If lights DO work, then the next step is to have your Fault Codes read from your vehicle's computer - this step will identify which circuit/component has triggered these warning lights.

Note: It will take your local Dealership approx. 15mins to check these codes, so shouldn't cost much.


Cheers,

I think you might have a bad brake light switch , they go out all the time and cause the BAS / ESP light to come on.

brake light switch ,that's the part you need to replace to fix that BAS/ASR light. It's a $20 US part, a screwdriver, and 15 minutes to fix.

This is the Brake Assistance/Electronic Stablilty malfunction light, it is the equivalent of an ABS (antilock brake) / electronic suspension control (traction control, rollover control, electronic suspension control) light. It basically means you have a problem in either your electronic ABS, traction control, or some other advanced electronic suspension control problem... Your car is fine to drive like it is, unless you detect some other driveability issue other than the dash light... (99.9% of the time it's something irrelevant and maybe stupid; that's what you get for driving electronic cars...) Your best bet to get rid of the light would be to get the car to an auto shop with a reader that can read ABS/EBS, brake and suspension codes to really find out why the light is on (usually a wheel speed sensor, or something like it...)