Brake Abs Warning Light Problems of Mercury Mariner Hybrid

Mercury Mariner Hybrid owners have reported 10 problems related to brake abs warning light (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Mariner Hybrid based on all problems reported for the Mariner Hybrid.

1 Brake Abs Warning Light problem of the 2006 Mercury Mariner Hybrid

Failure Date: 01/15/2019

In stop and go city traffic going about 1 mile an hour I braked but my mariner didn't and I slowly rear ended another vehicle. My abs sensor went on then off eventually an abs regen light came on and I had no brakes so I drove ,very carefully, 83 miles to my Ford dealer ( with no brakes) to find out that I needed a complete replacement of my abs hybrid braking module. $3900! my mechanic and I called two different junk yards where we received replacements and they were installed but when brought back to the Ford dealer the units wouldn't take the computer code and the (used) systems failed. $3900 is a lot of money for a vehicle, with 158,000 miles on it, that I bought used for under $5000. That said is there anyway that this abs hybrid brake module should have been on a recall list. Are others having similar issues? is this why they quit making hybrids at this time? I don't know but I'm thinking this is a recall issue at that price.

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2 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 12/28/2018

Abs light came on and brake system failed to stop the vehicle until pressed hard the brake pedal. The abs light comes on and off. Gave the vehicle for diagnostics to mechanic - codes u0418 invalid data from brake control module, codes c1478, c1479, c1480, wheel brake pressure control plausibility, u2023 communication network fault, mechanic gave estimate of $5542. 00 to replace abs control assembly. I called Ford customer service, they declined to assist at this time. No help provided to put my vehicle back on road. This is a safety issue.

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3 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 07/11/2017

Abs light and regen brakes disabled light have been coming on while driving. While these lights are on, brakes are squishy and is harder to stop car. This is happening more frequently and at varying speeds. Lights may come on when the car is first started or while driving at varying speeds.

4 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 05/20/2017

Abs warning light, regen brake system disabled warning light brake system not working properly, hard to stop vehicle.

5 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 04/28/2017

Abs warning light comes on and check brake system message comes on at anytime while driving on sitting still. Lose braking power, causing driver to push brake very hard to stop and brake pedal sometimes goes to the floor and you have to use emergency brake to stop. Dealer couldn't look at the car for three weeks said its okay to drive in "manual mode", however manual mode only uses rear brakes and will take vehicle a long distance to stop in rainy conditions. (I went through a busy intersection in the rain and almost had an accident so left it at the dealer). Dealer had vehicle for almost six weeks, replaced the abs huc twice, finally called Ford. Ford advised to replace all brake hoses "due to restrictions". Dealers are telling owners they have to replace abs hcu and part alone cost $4700. 00. However, Ford knows of the problem and is not putting out a bulletin or recall, until someone gets killed. Owners are trading the unsafe car because the dealer is misdiagnosing the real problem which cost approximately $300. 00.

6 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 05/10/2016

Upon startup and sometimes when driving the abs warning light will illuminate along with the service brake system and the regenerative brake system shutdown. Causing the brakes to become weak and ineffective.

7 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 04/22/2016

April 2016 the abs light was on along with the message "check brake system and the regen brakes. " when breaking the vehicle took much longer than normal to slow and stop. The repair for this was $4100 ($4800 with labor). I was advised that this was a safety issue since the brakes were not working properly and to not drive the vehicle. I chose to have the repair since I need the vehicle for work and still owe money on it. I did some research and it apears that this is a known problem as other complaints on NHTSA and other forums attest to. I contacted Ford and asked that I be reimbursed as this is a safety issue. They declined my request.

8 Brake Abs Warning Light problem of the 2007 Mercury Mariner Hybrid

Failure Date: 01/14/2015

I was travelling with my 15 month old son driving roughly 45 miles an hour on a multilane street when the abs light (orange) and a exclamation point light (red) turned on and my digital read out said service brakes. I would estimate that I lost 75% of my braking power. Due to the lack of stopping power I had to swerve onto a shoulder to avoid colliding with the car in front of me as my car gradually slowed down. I ended up in a turn lane which thankfully was clear at the time. I would estimate that my car required and extra 5 to 6 vehicle lengths to stop. Had the turning lane been occupied a significant collision would had ensued. Very frightening especially with my son in the car! I am very upset to see that there exists a technical service bulletin on the defective and dangerous hydraulic control unit. There needs to be a recall to fix this.

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9 Brake Abs Warning Light problem of the 2008 Mercury Mariner Hybrid

Failure Date: 02/28/2014

Tl-the contact owns a 2008 Mercury Mariner Hybrid. The contact stated while driving approximately 5 mph, he applied the brakes and there was an abnormal grinding sound from the brakes. Also the abs warning light illuminated. The failure recurred multiple times. The vehicle was taken to an independent mechanic for diagnostic testing. The mechanic stated that the abs unit needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 93,000. Mf.

10 Brake Abs Warning Light problem of the 2007 Mercury Mariner Hybrid

Failure Date: 06/29/2012

Was driving on highway - when abs light came on, then service brake system, service 4x4, regen disabled displayed on display. Tested brakes and appeared that they were still functioning, brought car to deler next morning, dealer replaced abs ring.


Other Common Service Brakes related problems of Mercury Mariner Hybrid


Fuel Economy of Mariner Hybrid Vehicles
Mariner Hybrid Service Bulletins
Mariner Hybrid Defect Investigations