Three problems related to transmission gear slipping have been reported for the 2003 Mazda MAZDA6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mazda MAZDA6 based on all problems reported for the 2003 MAZDA6.
The transmission is slipping, not wanting to shift into 2nd gear and then when it does shift it jerks the car really hard. This used to occur very seldom but since the car now has 98,000 miles on it, this has been happening almost all the time. I have heard that the car needs to be reflashed, but I have also read that this does not help. Many people with the same car have the same exact problem. Also this transmission is not able to be rebuilt. The transmission needs to be recalled.
I purchased a 2003 Mazda six on 6-28-03. 2 months later the engine and other dash lights appear and car shuts off. I pick up the car 6 days later only to return it a week later when the engine light comes on again. A week later I pick it up on Friday at 11:00 a. M. And by 7:00 p. M. All dash lights come on, transmission slipping, speed odometer erratic, and loss of power. It has been in the shop for 12 more days and they can not tell me anything. My piece of crap has been in the shop for 26 days, they have damaged numerous things(spoiler has crack, paint nicks on hood and doors)all I want is my money back and I walk away!.
2003 Mazda 6 check engine light at 1 week, transmissions slipping & slamming into gear through 1 1/2 years of ownership, at 35,000 engine went was replaced, replacement had 300 miles on it when it died on the southern end of NJ turnpike towed to DE dealer, still has transmission problems, back in shop now for engine problems only 3000 on replacement engine, into dealer numerous times for water leaks that have cause mold & rust inside the car on seatbelts & causing me a great deal of illness - still not repaired going through lemon law since Nov 2003.