2015 CX-5 Key Fob on occasion will not start car. Dealer is at a loss. Happened to anyone else?

50

Asked by Feb 17, 2015 at 08:01 PM about the 2015 Mazda CX-5 Grand Touring AWD

Question type: Maintenance & Repair

2015 CX-5 Key Fob on occasion will not start car.  Dealer is at a loss.  Happened to
anyone else?  Didn't start, towed in then started.  Bad Key Fob?  Eratic signal to sensor
at times?  Can Key Fob work then stop, then work again?

5 Answers

50

Partially Solved: For some reason after the car sits for an extended period of time the brake pedal becomes very difficult to push thus activating the switch. If one pushes on the pedal very hard it will activate the switch. When this happens it is like pushing on the brake pedal to stop when the car engine quits and the vacuum assist is off.We owned a 2014 CX 5 and this never happened. Dealer says it is normal.

5 of 5 people found this helpful.
30

I had the same fault with my cx5 2015 model I replaced the battery in the remote with a cheap and nasty one but still had the same fault I could open the doors with the remote but it couldn't start the car. so I went out and got a Lithium battery, it has been working fine for 4months now with out a problem. Give it a go it could be a quick and easy fix. As for the brake peddle going hard it sounds like a vacuum leak in the booster or the check valve is faulty, I can leave my cx5 for a week and still have a enough vacuum in the system. I think this dealer should be head slapped and told this is normal

3 of 3 people found this helpful.
20

Battery maybe getting low

2 of 2 people found this helpful.
50

Help both key fobs quit, 1 works occassionally, 1 not at all. When started with me brake was extremely had to push but car had been driven less than 12 hours previously. I have a hard time believing it's the batteries since both started acting up within 30 days. Any suggestions appreciated.

5 of 5 people found this helpful.

I have a 2015 cx-5. Mine is not working now. It has been getting worse over the last few months. I literally need to bang it on my steering wheel and mess with it for 10 minutes - 30minutes. Took it to my original dealer who is no longer Mazda, and they said the battery and the key fob were working fine. They told me I had to go to a certified Mazda Dealer in another town to get it looked at. It is so annoying! I have loved my car until this started happening.

Your Answer

CX-5

Looking for a Used CX-5 in your area?

CarGurus has 26,075 nationwide CX-5 listings starting at $7,955.

ZIP:

Mazda CX-5 Experts

  • #1
    crivera326
    Reputation
    510
  • #2
    MMC2882
    Reputation
    460
  • #3
    halcatalyst
    Reputation
    440
View All

Related Models For Sale

Used Honda CR-V
707 Great Deals out of 62,079 listings starting at $1,495
Used Toyota RAV4
651 Great Deals out of 61,906 listings starting at $1,995
Used Mazda CX-9
169 Great Deals out of 9,646 listings starting at $3,995
Used Mazda CX-3
17 Great Deals out of 4,737 listings starting at $14,750
Used Nissan Rogue
788 Great Deals out of 73,763 listings starting at $700
Used Hyundai Tucson
203 Great Deals out of 21,539 listings starting at $1,699
Used Mazda MAZDA3
258 Great Deals out of 27,113 listings starting at $1,700
Used Mazda MAZDA6
187 Great Deals out of 11,953 listings starting at $1,200
Used Ford Escape
1,172 Great Deals out of 106,287 listings starting at $700
Used Subaru Forester
302 Great Deals out of 37,663 listings starting at $1,103
Used Jeep Grand Cherokee
890 Great Deals out of 71,125 listings starting at $900
Used Honda Accord
838 Great Deals out of 87,587 listings starting at $1,444
Used Chevrolet Equinox
1,021 Great Deals out of 77,539 listings starting at $2,222
Used Jeep Cherokee
299 Great Deals out of 53,754 listings starting at $2,000

Used Cars For Sale

2017 Mazda CX-5 Grand Touring AWD For Sale
11 Great Deals out of 1,419 listings starting at $25,555
2016 Mazda CX-5 Grand Touring AWD For Sale
11 Great Deals out of 1,080 listings starting at $14,790
2015 Mazda CX-5 Grand Touring AWD For Sale
31 Great Deals out of 509 listings starting at $13,495
2014 Mazda CX-5 Grand Touring AWD For Sale
5 Great Deals out of 165 listings starting at $7,955
2013 Mazda CX-5 Grand Touring AWD For Sale
78 listings starting at $9,862

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.