2011 Mazda CX-7 Electrical system Problems
- Complaints
- 7about this part
- Share
- 5%of 154 total for the year
- Median mileage
- 4,200miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the electrical system of the 2011 Mazda CX-7, 5% of the 154 complaints for this model year. Where a mileage was given, the median is 4,200 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“For the last 2 years I have been trying to get our headlights to work properly with no success. Even when both dim headlights are working they are so dimm we can't drive with them and if one of them goes out we might as well not have a headlight. I have a vw and if one of it's low beam lights is out it is 100 times brighter than the Mazda with both low beams. This is very dangerous because if we are out at night we have to use the high beams which blinds on coming traffic. I have taken it to jim ellis Mazda twice and the first time I didn't even get home with out the light falling out. …”
NHTSA complaint #10929796, filed 2016-12, 70,000 miles“My headlights keep going out. I have to put in new head light bulbs every few months. I have changed the head light bulb on both sides for an entire year. Currently my right head light is out again. I purchased another bulb and have to pay for a mechanic to fix my head light this week.”
NHTSA complaint #11180674, filed 2019-02“The head lights and tail lights have been replaced over three times in least than two years. The condensation on the covers makes it difficult seeing where one is driving. This I believe is a safety issue. This condensation has also caused my radio to lose its sound. The battery will not start if it rains or its cold.”
NHTSA complaint #10837844, filed 2016-02“The low beam wiring gets hot and melts the connectors to the bulb connection. The low beam headlights have been replaced 8 times in a year due to low visibility. It's like turning off the headlights but they are still on. It's been going on for years. I've taken it to Mazda and the mechanic told me they had a vehicle there now with the same problem and have not figured out the problem yet. Wiring harness has been replaced to the low beam, the connectors and bulbs replaced fuzes and nothing seems to fix it, the battery keeps needing to be replaced as well, alternator has been replaced. …”
NHTSA complaint #11754388, filed 2026-08“The contact owns a 2011 Mazda CX-7. The contact stated when he turned the vehicle on and shift into drive gear all five doors fail to lock unless he manually locked them. The failure was not diagnosed by a dealer or local mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 4,200. Updated 1/16/14 the consumer stated when the vehicle was in drive, the doors would not lock automatically.”
NHTSA complaint #10557282, filed 2013-12, 4,200 milesRelated service bulletins
- 11037899Sep 11, 2026DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS…
- 11034447Jun 19, 2026This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g…
- 11026917Dec 17, 2025If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 11007019Aug 15, 2024If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 11006987Aug 8, 2024In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by…
- 10244679Oct 11, 2023If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10237216May 24, 2023If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10232299Feb 28, 2023Speedometer replacement procedure
- 10226924Nov 14, 2022If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10217209Jul 18, 2022In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer.
Electrical system: other model years
Other parts of the 2011 Mazda CX-7
51 complaintsAir bags
42 complaintsExterior lighting
38 complaintsSteering
16 complaintsTransmission and drivetrain
8 complaintsOther or unknown
7 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsBrakes
5 complaintsEngine
5 complaintsFuel system
3 complaintsBody and structure
3 complaintsVehicle speed control
3 complaints
← All problems reported for the 2011 Mazda CX-7
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology