"ghost touch" issue on my cars touch screen operates by itself or doesn't respond. I was driving down a dark road when it went black, the screen had adjusted its brightness down to zero! The radio will change stations then freeze and the manual controls won't even work.
2020 Mazda CX-5 electrical problems
severe 29 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
29
Recalls
0
Avg fix
$850
1crash
1injury
When does it fail?
Of the 29 electrical complaints filed for the 2020 Mazda CX-5, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 29 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Electrical accounts for 28% of all owner complaints filed against this vehicle, across 8 categories tracked.
The failure pattern owners describe
Buyer takeaway: The 2020 CX-5 has well-documented electrical gremlins: infotainment ghost-touching while driving, unexpected parking brake engagement, battery drain, and power loss events. Mazda acknowledged the touchscreen defect in earlier models but refused recalls for this generation—expect out-of-pocket repairs ($200–$900+) and repeated dealer visits.
The 2020 Mazda CX-5 shows a clear pattern of electrical faults across the infotainment system, power delivery, and brake controls. Ghost touch on the touchscreen is the most common complaint—the screen randomly activates while driving, jumping between functions, blasting audio, calling contacts, and disabling navigation. Owners report this happens despite Mazda's supposed safety lockout. Software updates don't fix it. Dealers quote $200–$900 for screen replacement, though some owners say the CMU (Connectivity Master Unit) is the real culprit.
Battery drain and start failures plague early examples, with some draining completely within days of purchase. Low-voltage events cause sudden power loss during operation—the brake booster and power steering cut out, leaving drivers with unresponsive pedals and steering at highway speed. One incident involved a crash; another left a vehicle unable to exceed 15 mph.
The electronic parking brake unexpectedly engages and locks despite disengagement attempts, with brake warning lights staying on indefinitely. Owners report rear brake heat and grinding sounds. Adaptive cruise control occasionally won't resume after braking. Multiple owners found Mazda customer service unwilling to cover repairs or investigate root causes, despite internal service bulletins documenting the ghost-touch issue in comparable vehicles.
Same Mazda CX-5 electrical reports on nearby years: 2017 · 2019
Failure modes owners describe
Infotainment Ghost Touch / Phantom Touch
Touchscreen and Connectivity Master Unit register phantom inputs without driver contact. Screen randomly selects menu items, jumps between screens, zooms, changes settings, calls contacts, adjusts volume, switches radio stations, and disables navigation while vehicle is in motion. Physical controls and knobs become unresponsive during episodes. System cannot be shut off due to phantom reactivation.
When: Intermittent, occurring during normal driving and highway speeds; some owners report it worsens over time. One owner reported issue for approximately 2 years.
Symptoms owners cite: Touchscreen activates without driver input; Screen freezes or reboots while driving; Unintended phone calls including to emergency numbers; Sudden loud audio or navigation volume at maximum; Radio station changes automatically; Navigation map disconnects during route; Settings and features change unprompted; Screen goes dark or brightness drops to zero; Bluetooth connections toggle on/off repeatedly; Physical knob and buttons become unresponsive during episodes
Repairs/costs cited: Dealers have quoted $200–$912.67 for screen replacement. Software updates attempted but did not resolve issue. CMU (Connectivity Master Unit) replacement mentioned by dealers as potential fix. One owner replaced display unit for $912.67. Class action settlement exists but not all cases covered.
Recalls/TSBs owners mention: Mazda acknowledged issue as known defect in service bulletins and warranty extensions issued for prior model years (2016–2017). 2020 models not extended recall coverage. Mazda customer experience team declined repair assistance in at least one case. Manufacturer claims not a safety issue despite widespread complaints.
Electronic Parking Brake (EPB) Malfunction
Electronic parking brake engages unexpectedly and remains engaged despite repeated disengagement attempts. Brake warning lights (yellow parking brake light and red brake light) illuminate and remain on. Brake rear assemblies heat up from friction. Brake may engage while vehicle is in motion or while parked.
When: Began February 2024 in a vehicle purchased July 31, 2023. Recurring issue; temporary fix via service mode lasts weeks to months before reappearing.
Symptoms owners cite: Yellow parking brake light remains illuminated after disengagement; Red brake light remains illuminated after disengagement; E-brake engages without driver input; Brake retraction audible on rear right side only; Brakes heat up and produce smell; E-brake engages while vehicle in motion without driver activation; Fear of brake lockup during highway driving
Repairs/costs cited: Owner replaced battery without resolution. Entering and exiting service mode provided temporary fix for a couple months. No permanent repair reported; issue remains unresolved.
Recalls/TSBs owners mention: Mazda is aware of issue per owner research and forums. Owner states Mazda refuses to issue recall despite widespread reports among owners. No recall issued as of complaint date.
Low Voltage Event / Electrical System Fault
Sudden loss of electrical power or low-voltage condition affecting brake booster, power steering, and multiple vehicle systems. Vehicle loses propulsion, becomes unable to accelerate above 15 mph, and steering becomes unresponsive. Multiple warning lights illuminate including brake malfunction and power steering malfunction. Flickering headlights suggest ongoing low-voltage wiring issues.
When: Occurs during normal driving; in one case occurred at traffic light while idling. One incident at under 500 miles on brand-new vehicle (September 29, 2020).
Symptoms owners cite: Complete loss of propulsion; unable to exceed 15 mph; Brake pedal becomes unresponsive despite repeated pressure; Power steering becomes unresponsive; Multiple dashboard warning lights illuminate; Headlights flicker; Vehicle shudders during loss of power event; Engine sputtering and hesitation at highway speeds; Vehicle loss of power while idling at traffic light
Codes mentioned: Mass airflow fault codes, Vacuum system codes, Hard brake event (CDR recorded)
Repairs/costs cited: Dealers initially misdiagnosed as needing spark plugs, coil packs, serpentine belt, and pulley replacement. Independent mechanic diagnosed CPU (ECM) sending false signals. One owner had ECM replaced along with battery; issue recurred after 250 miles. Another owner had no documented repair.
Recalls/TSBs owners mention: CDR (Crash Data Recorder) report was requested but refused by Mazda service in one incident.
Battery Drain / Start Failure
Battery drains completely or loses sufficient charge to prevent engine start while vehicle is parked or unattended. Vehicle fails to start multiple times despite battery replacement. Some instances suggest battery drain occurs even with vehicle off.
When: Occurs while parked or at rest. In one case, battery drained while vehicle was left running overnight in garage, causing carbon monoxide poisoning. Multiple occurrences within days of purchase in one case (brand-new vehicle).
Symptoms owners cite: Battery completely drained while parked; Vehicle fails to start after battery replacement; Battery drains again shortly after replacement; Vehicle fails to fully power off when button pressed
Repairs/costs cited: Battery replaced three times between July and October 2020 in one case; failure recurred after each replacement. Jump-start restored temporary function. No permanent fix documented.
Recalls/TSBs owners mention: Dealer technician indicated battery was defective but no root-cause investigation conducted. Mazda dealer refused to investigate or assist owner experiencing carbon monoxide poisoning.
Adaptive Cruise Control Malfunction
Adaptive cruise control fails to resume operation after vehicle braking for obstacles or traffic. Resume command does not engage despite button input and system showing 'on' status.
When: Occurs during highway driving above 40 mph when cruise control should re-engage after detecting cleared traffic ahead.
Symptoms owners cite: Adaptive cruise control will not resume after braking; Resume button pressed but system does not engage above 40 mph; Delayed response to resume command by several minutes
Infotainment System Restart / Connectivity Issues
Infotainment system restarts unexpectedly during operation. iPhone charging and connectivity functions intermittently fail or reset. Apple CarPlay and navigation functions disconnect from paired phones.
When: Intermittent, occurring during normal driving and navigation use.
Symptoms owners cite: System monitor displays spinning restart wheel while driving; Second iPhone stops charging and cycles connect/disconnect; Navigation disconnects from iPhone mid-route; Voice function unavailable after phone disconnection; Bluetooth connectivity issues with multiple phones
Dashboard Warning Lights and Electrical Anomalies
Dashboard lights turn off and back on repeatedly while driving. Tail lights reported as intermittently non-functional by other drivers. Daytime running lights status unclear. Plugin outlets have no power.
When: Occurs while driving on highway and local roads; multiple episodes reported.
Symptoms owners cite: Dashboard lights toggle on and off without apparent cause; Tail lights out (reported by other drivers); Daytime running lights status uncertain; Interior plugin outlets non-functional; General electrical system uncertainty
Repairs/costs cited: Battery replaced multiple times (3 times within 4 months in one case) without resolution; suggests issue beyond battery.
Brake Safety System Sensor Fault
Forward Braking Safety Sensor reports fault code while vehicle loses power and engine misfires across all cylinders.
When: While driving; vehicle immediately lost all power.
Symptoms owners cite: Forward Braking Safety Sensor code triggered; Loss of all engine power; Vehicle unable to exceed 15 mph; Misfire across all engine cylinders; Multiple warning light indicators illuminated
Codes mentioned: Forward Braking Safety Sensor fault
Repairs/costs cited: Dealer misdiagnosed as requiring spark plugs, coils, serpentine belt, and pulleys. Independent certified mechanic determined CPU sending false signals to all components, causing phantom misfire; one spark plug replaced and vehicle ran normally, but mechanic stated ECM replacement required for permanent fix.
Synthesized from 29 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 8 most recent
My 2020 Mazda cx-5 was 2 days old and the battery was completely drained and had to be towed to the dealer. I picked it up and they did nothing to the battery. They told me nothing was wrong and they replaced the key fob battery. Two more days after that I parked it in my garage and pushed the button to turn it off. Apparently it did not turn off and come morning, I had significant carbon…
Dashboard lights have gone off then back on while driving on the highway & local roads several times. Also concerned as to what else this issue affects & not sure if daylight running lights are on or off at this time or other electrical elements. Not sure the cause of this possible short in the system in addition to a battery replacement (orig. Battery & then 2 others since 7/4/20)
Tl* the contact owns a 2020 Mazda cx-5. The contact stated that while the vehicle was parked in the driveway of her residence, the vehicle failed to start. The contact contacted an independent mechainc who arrived at the residence and jump started the vehicle. The vehicle was taken to maxon Mazda (2329 rte 22 w, union, nj 07083) where it was diagnosed however, the mechanic was unable to duplicate…
Purchased brand new 2020 Mazda cx-5 on sept 25, 2020. On sept. 29, 2020 with < 500mi: while traveling approximately 45 MPH on county road, pressed brake pedal and the pedal did not move. Several malfunction lights flashed including "power steering malfunction", "smart city brake support malfunction". Repeatedly slammed on the brake pedal and it did not move at all. Tried to swerve to avoid…
Sporatically and randomly, the user instrument panel will make changes and adjustments automatically. For instance, it will switch to nativgation at full volume and state that "the navigation will be at this volume" (at max volume) when previously muted. It's alarming. It will also randomly call the last person dialed over the car speakers. It switches settings on its own and beeps during…
1st issue - System monitor restarts without warning. Just driving along with only one iPhone plugged in the monitor shows a spinning "wheel" saying restarting while driving, 2nd issue - with two iPhones plugged in it starts having more issues. Stops charging second iPhone connects then reconnects constantly. Then stops (see picture) 3rd issue - With only one iPhone plugged in and running…
Display went dark and did not display. This is not the only time it happens. It acts like someone’s touching the screen even when in motion. It prevents the reverse camera from displaying.
Had electrical trouble with your 2020 Mazda CX-5?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2020 Mazda CX-5?
It's a meaningful issue. 29 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 29 complaints filed, electrical issues most often appear around 28,547 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2020/Mazda/CX-5.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.