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NHTSA — Engine And Engine Cooling Problems


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
19,800 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Suzuki Forenza engine problems

engine problem

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2006 Suzuki Forenza Owner Comments

problem #16

Nov 012011


  • 71,000 miles


The contact owns a 2006 Suzuki Forenza. The contact stated that her check engine light would illuminate on an intermittent basis. The vehicle was taken to a dealer who advised her that they were unable to diagnose the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 71,000. The VIN was unavailable.

- Charlotte, NC, USA

problem #15

Sep 222011

Forenza 4-cyl

  • miles
Transmission range sensor switch malfunctioned. Car would not accelerate while driving down the freeway.

- Redding, CA, USA

problem #14

Nov 282006

Forenza 4-cyl

  • 9,000 miles
Air conditioner will not maintain forced air after two hours of use on warm or hot days. Must turn off conditioned air for about an hour to let the system rest. This is very annoying while traveling long distances with children in the back seats.

- Huntsville, AL, USA

problem #13

Oct 012010


  • 62,000 miles


Ahhh yes...the range sensor going out. My car started doing this in October 2010 and I was told that I need a new sensor too. My car jerks when this acts up and when it is gear, you can see the both the "R" and the "D" on the instrument panel. I took my car to midas and the mechanic (that works on my car) take a look at, he showed me where the sensor is (if you're facing the engine it's the little black round looking thing with a handle and yellow stripe on it). He did something to it and it ran fine for a few days and then did the "jerk" and the engine light came on again. I looked under the hood, and pressed down (as to pushing it back into place) and wiggled it a little before this. When I started my car, it ran perfectly and the light went off. I do this every 3-5 days. It seems to me that the sensor is getting loose and needs to have a new fitting. I'm not spending $253 until I absolutely need it. They do need to recall this because it's very annoying to have to deal with!!

- Fort Wayne, IN, USA

problem #12

Dec 122008


  • 51,000 miles
The contact owns a 2006 Suzuki Forenza. While driving 65 mph he experienced unintended vehicle acceleration and the vehicle stalled. An authorized technician replaced the timing chain, water pump, timing belt valves, and the cylinder head. The timing chain separated twice after the vehicle was repaired. None of the repairs have corrected the failure. The vehicle identification number was unavailable. The failure and current mileages were 51,000.

- Huntsville, AL, USA

problem #11

Nov 012008


  • Automatic transmission
  • 40,000 miles
The contact owns a 2006 Suzuki Forenza. Whenever the contact depressed the accelerator pedal, the vehicle would not move; however, the engine would rev loudly. She took the vehicle to the dealer and they stated that the throttle assembly was not allowing any gas to enter the engine, which caused the vehicle not to run at times. The dealer stated that this was a very common issue and no recalls were issued. The contact believes that she should not be responsible for the repair and a recall should be issued. The failure mileage was 40,000 and current mileage was 55,000. Updated 05/15/09 the consumer stated the air bag light illuminated. Updated 05/18/09.

- Ocala, FL, USA

problem #10

Jan 262008


  • 13,000 miles


The contact owns a 2006 Suzuki Forenza. The contact noticed that the tranmission shifted eratically since purchasing it in January 2008. He first. While driving on approximately 55-60 mph, the vehicle slowed down, sped up, lunged forward and shifted into gear without warning. There was also a roaring noise on the front end of the vehicle, a clicking sound near the dashboard, and every light turned off except the check engine light. The radio and air conditioner intermittently turned off and after five minutes, they both began operating normally. The dealer was unable to duplicate the failure; however, the manufacturer would not authorize the dealer to inspect or repair the vehicle. On one occasion, the windows would not close causing rain to enter inside of the vehicle, 20 minutes later he was able to close the windows; however, the vehicle began to lose power with the motor on and fully functional. The service advisor at the dealership stated that the acceleration pedal sensor could have caused the failure. The manufacturer once again authorized the dealer to disconnect the battery. The current mileage was approximately 23,800 and the failure mileage was approximately 13,000.

- Hampton, GA, USA

problem #9

Oct 152007

Forenza 4-cyl

  • Automatic transmission
  • 26,548 miles
The contact owns a 2006 Suzuki Forenza. The contact stated that the check engine light constantly illuminates. She also noticed a gaseous odor inside the passenger compartment. The mechanic stated that the oxygen sensor on the driver side was the cause of the failure. The vehicle has not yet been repaired. The powertrain was unknown. The current and failure mileages were 26,548.

- Gastonia, NC, USA

problem #8

Oct 012007


  • Automatic transmission
  • 14,075 miles
2006 Suzuki Forenza with engine light and gas tank problems. Consumer states that it took him 3 weeks to get a new gas cap. Customer has spent more than $330 and the problem is still not fixed. The consumer stated the engine light continued to illuminated after repairs were made to the vehicle. The consumer was informed by a different mechanic that the vehicle needed a new map sensor and wiring harness. The consumer stated the vehicle stalled twice while on the freeway while driving 25 mph.

- La Puente, CA, USA

problem #7

Aug 162007

Forenza 4-cyl

  • Automatic transmission
  • 27,500 miles
The check trans/motor light came on in my car.I made an appt. At Suzuki. It was on for 6 days. It went off, then the air bag light came on. It stayed on. I mentioned that there were loose wires hanging under my seat when I dropped it off. They said a wire came loose and that I should not put anything under my seat.I say that the wires are so loose that if someone put there feet under the seat, there feet could get caught up in the wires and unhook them. Then my airbags won't work, correct".if I get in an accident and they don't work, would that be considered unsafe" the dealer said the wires had to be loose because the seat moves and that nobody could get there feet caught in the wires. Loose wires under a seat that control a safety device.. sounds unsafe to me..I took it in for the passenger side airbags right after I bought it.. they said wasn't broke and gave me a letter that says the passenger airbag light will come on if the passenger is not seated correctly in the seat.. sometimes it works, sometimes it doesn't. they fixed it this time, too much resistance.

- Tacoma, WA, USA

problem #6

Mar 032007

Forenza 4-cyl

  • Automatic transmission
  • 45 miles


When I first brought the car on 1/30/2006, it started giving me problems, such as not starting up, the engine light on and off all the time. The emergency brake light on constantly. The power windows rolling up and down by themselves. The power locks stop working and then work over and over again. When I'm driving, the car jerks and pulls all the time. (the pulling is coming from the transmission). I am a single mother of two and I feel real bad about getting stuck with a lemon. After I get out of school I take classes at night and my kids go to the daycare on campus when I picked them up after class, got in the car, started it up, and the front two windows rolled down by themselves, and would not roll up and it was snowing and we had to ride all the way home like that. The dealership doesn't care. As far as they are concerned, it is not their problem. It is a messed up world we live in where someone knows that you really need a car and they screw you with a lemon. Until this present day, all these problems described still exist but so do me and my son-3 and my daughter-6 if anybody can help, it would be greatly appreciated. Thank you.

- Severn, MD, USA

problem #5

Sep 022006

Forenza 4-cyl

  • Automatic transmission
  • 1,836 miles
2006 Suzuki Forenza with safety issues regarding loss control and sticking and engine stalling* the consumer stated the gears would stick and she has experienced several steering component failures. To this date the steering problem still had not been addressed. One month after purchasing the vehicle, it would not start, the consumer had to wait 2 minutes before trying again. The consumer could not get the vehicle to go into reverse. There was a knocking noise coming from the vehicle, the dealer stated they lubricated the sway bar bushings. The noise eventually returned. The dealer then stated that they over-lubricated the sway bar bushings.

- Columbia , SC, USA

problem #4

Jul 112006

Forenza 4-cyl

  • Automatic transmission
  • miles
I brought a 2006 Suzuki Forenza on July 11, 2006. In two or three days I noticed something wrong in the way it was driving. I took it back and the general manager drove the car and stated nothing was wrong. The next day the car would not start. I took it to the dealer they stated it was a software problem and it needed new spark plugs. The car wouldn't start again. I was told it needed an upgraded software. The car doesn't start it sounds as if it wants to cut off and it drives rough and stalls. This car is brand new and montgomery keystone motors were fully aware of this and still decided to sale me a lemon. I have contacted an attorney regarding this.

- Conshocken , PA, USA

problem #3

Apr 282006

Forenza 4-cyl

  • Manual transmission
  • 443 miles
Rough idling problems / no start problems after owning new 2006 Suzuki Forenza three days. First time happened at gas station. Took four attempts to get car running. Happened intermittently. Took car to dealership. Replaced spark plug and installed new computer. Same problems occurred two days later. Have had newer problems occur. Car on four occasions has almost died while driving, warning lights coming on when they shouldn't. I contacted manufacturer about the rough idle/no start problem. Am in process with them now to try to get a refund. Problem is thought to be with software glitch downloading improper fuel data into cars computer. Rep from manufacturer said software downloaded usage of summer fuel rather than winter which is why I have had the problem with intermittent rough idle, no start, car trying to die while driving. It is my understanding there is a fix for automatics but not for manuals like mine. Although rough idle and no start problems are more of an annoyance, the car trying to die is more of a concern which I feel is a safety issue.

- Fowler, CO, USA

problem #2

Jul 032006

Forenza 4-cyl

  • Manual transmission
  • miles
I bought my car brand new with just 15 miles on it and had it for 2 weeks and then it started giving me problems with starting.

- Grand Junction, CO, USA

problem #1

Jun 212006

Forenza 4-cyl

  • Automatic transmission
  • 350 miles
I bought a new 2006 Suzuki Forenza from a dealer on 23 May 2006. After one week with the car, I began having problems in that it does not start after it sits for a while. I called the salesman on 2 Jun 06 and told him that for the third time that week, it didn't start. He didn't inform me of any problem with the vehicle and just stated it shouldn't happen and to have it towed in. I went back to the vehicle and it finally started but I have had the same problem starting it every day since. Today I called the service department and they informed me that there is a problem with "cold starts" on this vehicle and that there is no fix for it at the present time, and I'll get a recall message in the future when Suzuki figures out what's wrong with the vehicle. I believe this problem should have been disclosed by the dealer/salesman before I bought this new vehicle and when I originally called them on 2 Jun 06 with a complaint, they should have revealed the problem to me at this time. I feel this car is a lemon and I have no recourse.

- Fitchburg, MA, USA

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