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Transmission and drivetrainPart report

2003 Saturn Ion Transmission and drivetrain Problems

Complaints
55about this part
Share
7%of 758 total for the year
Median mileage
48,750miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 55 complaints about the transmission and drivetrain of the 2003 Saturn Ion, 7% of the 758 complaints for this model year. Where a mileage was given, the median is 48,750 miles. 1 of these say a crash was involved, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My key switch doesn't allow me to remove my key when I'm in parked and my transmission strands at times and my car doesn't start all the time when I try to start it I have to sit and wait awhile before it starts again I could be sitting in the drive thru on parked waiting to travel again on th he main roadway”

NHTSA complaint #11342756, filed 2020-08, 139,000 miles

“When I am driving, my car will suddenly seem to slip out of gear, the RPM's will continue to rise while the car starts to slow down and can no longer accelerate. I then have to pull over and turn the car off and restart to reset the car and it seems to drive normal again. This usually happens at higher speeds, like while I'm driving on the interstate, but can and has happened at lower speeds as well. I have two children and am expecting another child in july and no longer feel safe driving this vehicle. …”

NHTSA complaint #10864786, filed 2016-05, 158,990 miles

“I was driving and my transmission I bought from GM only 14 months ago went out. It was remanufactured and the part cost me 5,513.63 dollars. I only drove approximately 9,000 miles and they said it was 12 mo. Or 1 year so they can't help me. I would expect a remanufactured transmission to last more than 9000 miles and asked if I was the first to have failure at so low mileage and he replied yes. I feel I've been cheated as a consumer. Gm parts told me that part is covered 3 years or 36,000 miles however customer service said that's wrong. …”

NHTSA complaint #10897326, filed 2016-08, 104,065 miles

“I am not sure if the power train is the transmission, but this car will downshift on its own, causing it to loose speed incredibly fast almost to the point of stopping. I found out there was a recall on this transmission, but GM now says there was not. Even though when I first called, the gentleman that answered said that the symptoms fit the recall stats. When I was able to talk with the person that was handling the claim, she said it was past 8 years, and they could not fix the recalled problem. …”

NHTSA complaint #10525247, filed 2013-07, 100,000 miles

“Almost from day one, the traction control does not turn off. The dealer says they hooked up a computer to see if it turned off and they said it does, but, as soon as I left the dealer, I hit the button to turn off the traction control and I spun the tires and the traction control kicked on and the car had no power pulling out into traffic. Yet the dealer says there is nothing wrong.”

NHTSA complaint #10106435, filed 2005-01, 150 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2007192%
2006363%
2005285%
2004607%
2003557%

Other parts of the 2003 Saturn Ion

Electrical system
383 complaints
Steering
139 complaints
Engine cooling
58 complaints
Air bags
49 complaints
Vehicle speed control
38 complaints
Visibility (wipers, defrost, mirrors)
38 complaints
Fuel system
34 complaints
Exterior lighting
31 complaints
Engine
21 complaints
Body and structure
19 complaints
Other or unknown
17 complaints
Brakes
11 complaints

← All problems reported for the 2003 Saturn Ion

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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