Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
15,734 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.

2009 Chevrolet HHR engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2009 Chevrolet HHR:

Unsubscribe any time. We don't sell/share your email.

2009 Chevrolet HHR Owner Comments

problem #4

May 092015


  • 53,700 miles


The contact owns a 2009 Chevrolet HHR. While driving from a complete stop, there was hesitation when the accelerator pedal was applied. The failure recurred on a separate occasion while driving 30 mph. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 53,700.

- Conallwinchester, OH, USA

problem #3

Jul 312010


  • 4,935 miles
Engine became sluggish, unresponsive to gas pedal, and shut down in heavy traffic causing dangerous situation. Instrument warnings: Engine power reduced and something about traction... called onstar - towed to dealer and diagnostics said "wrong readings on the throttle body" and "wrong gas pedal position". dealer replaced throttle body.

- Plano, TX, USA

problem #2

Sep 202009


  • 300 miles
The contact owns a 2009 Chevrolet HHR. While driving approximately 20 to 30 mph the vehicle accelerated. He engaged the brakes and turned the ignition off. He restarted the vehicle, drove a couple of miles and the vehicle accelerated again. The failure occurred intermittently. The vehicle was taken to an authorized dealer several times, yet, they were unable to duplicate the failure. The contact was unable to provide a VIN. The approximate failure mileage was 300. The current mileage was 2,000.

- Berkley, MI, USA

problem #1

Apr 122010


  • 4,000 miles
The contact owns a 2009 Chevrolet HHR. The contact stated that while driving 50 mph and depressing the brake pedal, the vehicle abnormally accelerated. The contact was able to drive onto the emergency lane without incident and shut off the engine. He was able to contact onstar who advised the contact to restart the engine. Upon doing so, the vehicle began to accelerate without the accelerator or brake pedal being depressed. The vehicle was taken to the dealer for further inspection. The failure and current mileages were 4,000.

- Clinton Township, MI, USA

Not what you are looking for?