2003 Infiniti I35 Vehicle speed control Problems
- Complaints
- 10about this part
- Share
- 11%of 93 total for the year
- Median mileage
- 101,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the vehicle speed control of the 2003 Infiniti I35, 11% of the 93 complaints for this model year. Where a mileage was given, the median is 101,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving at around 30- 35mph and suddently car slowed down with brake light on. I turned the emergency lights on and moved to right most lane. Swtiched off the car. Swithed on back. It worked fine. It happened twice with me. Only worry is that while travelling on freeway if car siddenly slows down, which may be extermely dangerous. So need advise what is required to be done.”
NHTSA complaint #10479737, filed 2012-10, 104,500 miles“The car loses power after a while and will just stop as if it ran out of gas. This has happened several times, otherwise the car is ok. The mechanic suspects it has something to do with the crank position or circuit board. There was recalls on this model in 11/2003 and 12/2003 that describe exactly what happens to my vehicle. This slowing down to stopping happened on a major expressway and I had to be towed. It also happened again in my street and driveway having to be towed again.”
NHTSA complaint #11045241, filed 2017-11, 137,000 miles“While driving the car does not respond to the gas pedal by accelerating sometimes. I have been at very low speeds while turning a corner or at very high speeds while driving on the freeway and the car will not respond to the fact that I am pressing the gas. The only way that I can get it to accelerate is by slamming the brake quickly. Somehow the jolting of the car causing it to respond appropriately to the gas pedal and to accelerate. …”
NHTSA complaint #10316425, filed 2010-03, 98,574 miles“The car suddenly loses throttle control under normal driving conditions; the engine return to idle speed . I was driving on the expressway and all of a sudden the check engine light came on and the car started slowing down. I pressed on the gas pedal all the way down but the car refused to accelerate. I managed to pull over and stop the engine. And then restarted the car and it seemed to work ok for a while and then did it again. I managed to get it to the dealer and it has been there since while they try to figure out why this is happening. This problem started happening about a year ago. …”
NHTSA complaint #10311512, filed 2010-02, 84,100 miles“Recall - NHTSA campaign id number: 03v455000. Engine stopped while driving in normal conditions which could have caused a catastrophic accident. Loss complete control of the vehicle and the slip light, tcs off and check engine light all came on with complete engine failure while driving with no ability to regain control. I took the car to a mechanic and was told there is a code p0340 - camshaft position sensor failure. Infiniti corporate had issued a recall # r3021 for this major issue. …”
NHTSA complaint #10595187, filed 2014-05, 90,000 milesVehicle speed control: other model years
Other parts of the 2003 Infiniti I35
44 complaintsEngine cooling
27 complaintsElectrical system
13 complaintsAir bags
8 complaintsElectronic stability control
8 complaintsOther or unknown
6 complaintsTransmission and drivetrain
5 complaintsBrakes
4 complaintsFuel system
4 complaintsSeats
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 2003 Infiniti I35
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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