TL* THE CONTACT OWNS A 2006 MAZDA MAZDASPEED6 . THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE TRANSMISSION WOULD SLIP INTO NEUTRAL WITHOUT WARNING. THE CONTACT MENTIONED THAT WHILE DECELERATING TO ATTEMPT A TURN, THE VEHICLE AUTOMATICALLY DOWNSHIFTED. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN ADVISED THAT THE TRANSMISSION WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFA…
2006 Mazda Mazda6 powertrain problems
moderate 23 complaints filed with NHTSA · avg repair $2,500
Complaints
23
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 5 most recent
TL*THE CONTACT OWNS A 2006 MAZDA 6. WHILE DRIVING 55 MPH IN SIXTH GEAR, THE VEHICLE MAKES A LOUD NOISE AND SUDDENLY DOWNSHIFTS INTO THIRD GEAR. THE VEHICLE HAS BEEN TO THE DEALER SEVERAL TIMES AND THEY REPLACED THE VALVE BODY AND FLUSHED THE SYSTEM. THE FAILURE WAS TEMPORARILY SOLVED FOR A FEW MONTHS. THE MANUFACTURER INFORMED THE CONTACT TO TAKE THE VEHICLE BACK TO THE DEALER. THEY STATED TH…
POTENTIAL REAR END COLLISION: I OWN A 2006 MAZDA 6 VIN [XXX]. I HAVE EXPERIENCED FREQUENT TIMES WHEN I HAVE ACCELERATED ONTO THE HIGHWAY (OR ANY OTHER NEED TO AVOID A COLLISION) AND HAVE EXPERIENCED A SEVERE LOSS OF POWER/ACCELERATION. THIS COULD HAVE EASILY RESULTED IN A REAR-END COLLISION HAD THE CARS BEHIND ME NOT REACTED IMMEDIATELY. I HAVE NOTIFIED THE LOCAL DEALERSHIP AND "MAZDA CUSTOMER SA…
5 MONTHS AGO, TOOK CAR TO MAZDA DEALER FOR TIMING CHAIN, VVT NOISE AND WAS REPLACED UNDER EXTENDED WARRANTY. LAST MONTH STARTED TO FEEL INTERMITTENT LOSS OF POWER DURING QUICK ACCELERATION FOLLOWED BY PLUME OF SMOKE AT THE TAIL PIPE. TOOK TO LOCAL MECHANIC SHOP AND WAS TOLD THERE WAS HEAVY CARBON BUILDUP AT THE VALVES AS WELL AS MASS AIR FLOW SENSOR, O2 SENSOR, AND OTHER ENGINE COMPONENTS. THE …
THE TRANSMISSION SEEMS TO LOCK UP AND REV AT A HIGH RATE, THEN THE CARS BUCKS AND EITHER ENGAGES AT A LOWER GEAR OR YOU HAVE TO SLOW TO A CRAWL BEFORE THE TRANSMISSION ENGAGES. THIS HAS HAPPENED AT LOW SPEED AND TRAVELING ON THE INTERSTATE WITH TRAFFIC ALL AROUND, INCLUDING A SEMI-TRUCK RIGHT BEHIND MY VEHICLE. THIS IS A DEFINITE PROBLEM AND SAFETY HAZARD. *TR
Common questions
How serious is the powertrain problem on the 2006 Mazda Mazda6?
It's a documented issue but not catastrophic. 23 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.
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