The Lemon IndexHarsh or clunky shifts usually come from fluid, software or worn parts in the transmission.
Fix soon. Usually drivable. Ask the dealer about software updates first, and get it checked soon.
Low or old transmission fluid. Then: transmission software that needs an update or relearn; a shift solenoid or valve body fault.
Owners describe this in 10,913 complaints to the U.S. government, most often on the Ford F-Series.
Cars owners report it on most
Complaints describing this symptom, by model, all years. Raw counts, not a failure rate: popular models get more complaints.
Model years that report it most
| Model year | Complaints | Share |
|---|---|---|
| 2018 Ford F-Series | 329 | 11% |
| 2019 Ford F-Series | 244 | 8% |
| 2014 Jeep Cherokee | 215 | 8% |
| 2005 Nissan Maxima | 210 | 22% |
| 2020 Ford F-Series | 173 | 14% |
| 2015 Jeep Cherokee | 168 | 9% |
| 2004 Nissan Maxima | 167 | 12% |
| 2017 Chrysler Pacifica | 124 | 8% |
| 2002 Ford Explorer | 112 | 3% |
| 2006 Nissan Maxima | 102 | 18% |
| 2017 Ford F-Series | 99 | 3% |
| 2021 Ford F-Series | 99 | 6% |
Each row is that model year's record in NHTSA complaints, not the history of any one car. Share = complaints describing this symptom out of every complaint we hold for that model year (shown when the year has 50+ complaints).
Where it makes up the biggest share
2005 Nissan Maxima · 22% 2020 Ford Expedition · 19% 2006 Nissan Maxima · 18% 2001 Toyota RAV4 · 17% 2002 Toyota RAV4 · 16% 2003 Toyota RAV4 · 16% 2020 Ford F-Series · 14% 2021 Ford Expedition · 13%
Model years with 150+ complaints in our data and 10+ describing this symptom, ranked by share. A high share means owners of that year who complained often mentioned it.
The details
Common causes of transmission shifting hard
- Low or old transmission fluid
- Transmission software that needs an update or relearn
- A shift solenoid or valve body fault
- Worn engine or transmission mounts
- Internal wear
General causes, not a diagnosis. A shop should confirm the cause with tests before replacing parts.
Is it safe to drive if the transmission shifts hard?
Fix soon. Usually drivable. Ask the dealer about software updates first, and get it checked soon.
Get help right away if the car slams into gear at a stop; it slips or won’t shift.
Of the 10,913 complaints describing it, 1% mention a crash, 0.7% say the car was towed and 0.6% report an injury.
What the complaints show
The parts owners filed these complaints under: power train (89%), engine (11%), electrical system (8%), vehicle speed control (6%). A complaint can list more than one.
Median odometer reading when owners reported it: 60,000 miles.
Most reports by make: Ford (3,457), Chevrolet (1,251), Jeep (812), Nissan (751), Honda (605).
What owners say it cost to fix
Repair bills owners named in complaints that describe this symptom (4x4 & axles, transmission repairs): the middle half ran $2,400 to $7,000, typical $4,000, from 408 bills.
Each figure is one repair bill as an owner wrote it in a complaint, not a quote for your car. Prices vary with the part, the shop and the year.
Engine codes that come up with it
P0700 P0722 P0747 P2716 P0720 P0717 P0776 P0706
Trouble codes owners named in these complaints more often than in other symptom complaints. Look up any code →
Related symptoms
Transmission slipping Transmission shudder Car won't go into gear Car jerks when accelerating Car hesitates when accelerating RPM goes up and down
Quick answers
What causes transmission shifting hard?
Harsh or clunky shifts usually come from fluid, software or worn parts in the transmission. Common causes: low or old transmission fluid; transmission software that needs an update or relearn; a shift solenoid or valve body fault; worn engine or transmission mounts; internal wear.
Is it safe to drive if the transmission shifts hard?
Fix soon. Usually drivable. Ask the dealer about software updates first, and get it checked soon.
Which cars have this problem most?
In complaints to NHTSA, owners describe it most on the Ford F-Series, Jeep Cherokee and Nissan Maxima. These are raw counts, so popular models rank higher; complaints are owner reports, not proof of a defect.
How much does it cost to fix?
In 408 repair bills owners named in complaints describing it, the middle half ran $2,400 to $7,000. The right repair depends on the cause.
Counts: NHTSA owner complaints whose text describes this symptom (we matched owners' own wording, then read samples to check the matches). A complaint is an owner's report, not a diagnosis or proof of a defect. Causes and advice are general information in our own words, not repair advice for your car. Every symptom · Engine code lookup