Mazda CX-5 Problems by year

TCU malfunction 9. 10/09/25 at 5:37 am TCU SOS malfunction 10. 10/24/26 at 11:15 am TCU SOS Malfunction 11. 10/28/26 at 2:10pm TCU SOS Malfunction 12. 10/28/26 at 3:26pm TCU SOS Malfunction 13. 10/29/26 at 1:51pm TCU SOS Malfunction 14. 11/07/26 at 10:54am TCU SOS Malfunction 15. 11/07/26 at 11:07am TCU SOS Malfunction 16. 1/09/26 at 5:42am TCU SOS Malfunction 17. 11/11/26 9:50am invehicle network problem

exhaust manifold and cylinder head and recommended replacement of the cylinder-head assembly. This failure presents a potential fire hazard because engine oil leaking near hot exhaust components may ignite. Significant oil loss could also cause engine seizure or unexpected loss of propulsion during operation, placing occupants and other motorists at risk. In August 2025, more than a year before this incident, I reported an abnormal clicking noise while the engine was idling to the same authorized Mazda dealership. I was advised that the noise was normal. Whether this earlier symptom was related to the subsequent failure remains undetermined. Mazda has published technical service guidance, including SA-058/20 and SA-031/21, concerning cylinder-head replacement assemblies for certain vehicles equipped with 2.5-liter engines and cylinder deactivation. I am concerned that my vehicle may have experienced a similar premature failure. The precise cause has not yet been independently established. The manufacturer authorized diagnostic inspection and teardown but declined financial assistance for the recommended repair. I have requested preservation of the failed components, photographs, and diagnostic records. Their availability for independent inspection remains unconfirmed. I request that NHTSA investigate whether this failure represents a broader safety-related defect affecting similar Mazda vehicles.

still in traffic trying to find a safe place to stop, and I debated going through red lights just to get off the road. Sitting at a light in a car filling with smoke felt more dangerous than the intersection. No driver should ever have to make that choice. When I pulled over and opened the hood, smoke was pouring from the back of the engine near the firewall, and oil was seen seeping from the back of the engine onto the ground. There was no warning light or other warning before this happened. [[redacted]] Mazda diagnosed a cracked cylinder head a few hours after I had the vehicle towed from a parking lot next to the highway with leaking oil onto the exhaust manifold. The vehicle has been maintained mostly at Mazda dealers, and this was not wear or neglect. The repair cost was estimated at $5,200. Oil leaking onto a hot exhaust is a fire hazard, and in my case it filled the passenger cabin with smoke while I was driving. Mazda has issued a service alert establishing a replacement cylinder head for this engine, with oil leaks listed as a symptom. Mazda also extended coverage to 10 years or 120,000 miles for cracked cylinder heads on the turbo version of this engine (CSP11). There is no recall or extension for the non-turbo engine, even though this failure creates a smoke and fire risk while driving. I am asking NHTSA to investigate cylinder head cracking on 2018 and newer Mazda vehicles with the SKYACTIV-G 2.5 engine with cylinder deactivation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

intermittently does not fold out and glass does not move/adjust. Dealership reportedly ordered part during Sept [[redacted]] repair window, has not been repaired yet with no update from dealership. [FIELD: HOW WAS SAFETY AFFECTED?] High-beam failure forces single-handed steering at night. Sudden ADAS/screen shutdowns cause driver distraction and lose safety monitoring. Engine stalling creates severe collision risks at intersections and on active roads.Mirror issue prevents ability to safely monitor changing road conditions/other drivers. [FIELD: WARNING LIGHTS AND MESSAGES] Cluster displayed "System Disabled: Poor Outward Camera Visibility" in clear weather with clean windshield (Oct [[redacted]] & [[redacted]]). No warnings for engine stalling, HUD loss, or headlight failure. [FIELD: REPRODUCTION & INSPECTIONS] Dealer failed to reproduce due to brief test drives. Inspected only by Jim Shorkey Kia and 1 independent mechanic (who diagnosed earlier resolved oil leak/solenoid timing belt issue). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)