2007 Chevrolet HHR Transmission and drivetrain Problems
- Complaints
- 40about this part
- Share
- 6%of 726 total for the year
- Median mileage
- 73,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 40 complaints about the transmission and drivetrain of the 2007 Chevrolet HHR, 6% of the 726 complaints for this model year. Where a mileage was given, the median is 73,000 miles. 2 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Driving and pushed on clutch to change gears , I heard a snap and the clutch lost all pressure and went to the floor of the vehicle. Upon inspection by a mechanic , it was determined that the clutch cylinder had punched through the firewall. This should not have happened and is a manufacturing defect. I was driving in traffic and this caused the car to turn off. It could have caused a very serious accident.”
NHTSA complaint #11112383, filed 2018-07, 192,000 miles“Driving 45 MPH pressed the brakes , vehicle started accelerating then I applied excessive force on the brakes, finally engine started to reduce RPM's no check engine light came on, lucky that I am a very experienced driver lol to other drivers”
NHTSA complaint #10991567, filed 2017-05, 120,000 miles“I have a 2007 chevy HHR and few months ago my traction control light come on and engine light. Then shortly after my power steering went out. The power steering has been going out periodically...last time was on a exit ramp on the curve. I almost put it in the ditch. I understand that the cobalt had recalls on these items but not the HHR. Which makes no sense because of the same chassis and all. …”
NHTSA complaint #10543246, filed 2013-09, 91,675 miles“The power steering feels stiff not able to make right turns without the stiffness. Power steering lights constantly on since this problem occurred. My power steering is electrical and for some reason I believed that the ignition recall my have something to do with this not sure.”
NHTSA complaint #10625915, filed 2014-08, 102,806 miles“I have a 2007 chevy HHR and starting having problems with trying to shift out of park. At first it was every so often it happened all the time. While I was on vacation my friend took the car to a chevy dealership and they said the gear shift had to be replaced it cost me 497.99. In the mean time I went on line and found that 15,000 other owners of HHR's had the same exact problem. I went to GM to see if there was a recall and they said no. …”
NHTSA complaint #10351695, filed 2010-08, 48,401 milesRelated service bulletins
- 11009088Sep 16, 2024This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10237387May 30, 2023This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
Transmission and drivetrain: other model years
Other parts of the 2007 Chevrolet HHR
424 complaintsElectrical system
111 complaintsBrakes
51 complaintsFuel system
51 complaintsAir bags
48 complaintsBody and structure
43 complaintsSuspension
27 complaintsLatches, locks and linkages
25 complaintsOther or unknown
20 complaintsEngine
18 complaintsEngine cooling
17 complaintsSeat belts
11 complaints
← All problems reported for the 2007 Chevrolet HHR
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