2007 Hummer H3 transmission problems

Filed Jun 3, 2020 · Transmission · OK

Tl* the contact owns a 2007 hummer h3. The contact stated that while driving, the power reduction and stability control warning lights illuminated. The vehicle decelerated independently. The vehicle was pulled over and restarted. The failure recurred. The vehicle was taken to jim glover chevrolet located at 707 w 51st st, tulsa, ok 74107, where a diagnostic test was performed. The technician diagnosed that the transmission needed to be replaced. The vehicle was towed an independent mechanic who rebuilt the transmission. The manufacturer was made aware of the failure. The failure mileage was unknown.

Filed Mar 16, 2018 · Engine, Seats · AZ

2007 hummer h3. Consumer writes seeking reimbursement for repairs done prior to safety recall being issued. *ld

Filed Mar 2, 2017 · Steering, Transmission · 114,000 miles · MD

Tl* the contact owns a 2007 hummer h3. While making a right turn at 35 MPH the steering wheel became difficult to maneuver without warning. The contact pulled over and discovered that the power steering fluid cap failed to remain secure and caused the power steering fluid to spew out. The cap was secured, but the failure recurred continuously. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 114,000. Updated 05/02/17*lj the consumer stated she purchased a power steering cap. Updated 05/26/2017

Filed Dec 26, 2016 · Body, Driver assistance · 78,000 miles · TX

Radiator leaking, hood vent coming up, A/C control panel lights are no longer working

Filed May 4, 2016 · Engine, Transmission · 103,306 miles · MI

The vehicle just lost power and almost lost ignition while driving 50 miles an hour. Diagnostic code state, misfire in cylinder one. Valve springs ( rocker arm) are breaking prematurely causing a leaking valve problem. Mechanic also noticed other springs were fatiqued causing a looser than normal seating. Gm service manager mention a spring problem on 2006 2007 rendevous. One of the largest complaints with the hummer 3 is this leaky valve syndrom which the dealers know about. Some occuring with the vehicle having only 30,000 plus miles.

Filed Mar 14, 2016 · Driver assistance, Engine · TX

First the entire computer system stopped working. Had to replace thr PCM. Then my blower started throwing hot air when on cold. Had to install separate to resolve that issue. Had to re-build the transmission twice due to leak of coolant into the transmission. This truck has been a nightmare so far.

Filed Dec 7, 2015 · Engine, Transmission · 94,000 miles · TX

Rebuilt transmission twice cleaned throttle body replaced exhaust manifold two o2 sensors replaced the radiator the heater core a fuel pump relay and this engine light still will not turn off it says torque converter clutch solenoid I'm disgusted already gm fix ur [xxx]. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Dec 23, 2014 · Engine, Transmission · 53,018 miles · MD

Noticed radiator fluid dripping underneath vehicle. Opened the hood and found radiator coolant had been blown all over interior engine compartment. Enough coolant remained in the reservoir to prevent overheating. I noticed the incident just in time.

Filed Aug 20, 2014 · Electrical, Transmission · 119,000 miles · SC

Tl* the contact owns a 2007 hummer h3. The contact stated while traveling approximately 25 MPH, the vehicle stalled. The contact was not able to restart the vehicle. The vehicle was towed to an authorized dealer. The technician diagnosed that the PCM needed to be replaced. The vehicle was repaired. In addition, the key became lodged in the ignition causing the battery to drain. The vehicle was taken back to an authorized dealer who diagnosed that the shifter needed to be replaced. The manufacturer was notified of the failure. The approximate failure mileage was 119,000.

Filed Aug 19, 2014 · Engine, Transmission · 57,534 miles · FL

My vehicle has a cracked radiator and according to other hummer owners this is a common defect that happens to these vehicles. His over heating cuased me to pull over on a busy highway were I could of been hit and killed, total failer of vehicle electronics, gmc does not want to work on the vehicle that is not under warranty, because of the many problems wth this vehicle. This crack is were it is wearing near the motor.