Driving on dry road at speed engine suddenly stopped. Pulled over to side and before car fully stopped put into neutral and engine restarted. Then placed back in drive and continued 50 miles with no further problem that day. On 12/15 while on interstate the engine stopped again with much more danger as traffic was coming up on our rear. Managed to get into breakdown lane and while going 15/20 MPH…
2006 Nissan Altima powertrain problems
severe 69 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
69
Recalls
0
Avg fix
$2,500
3crashes
2injuries
When does it fail?
Of the 69 powertrain complaints filed for the 2006 Nissan Altima, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 69 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA powertrain complaint has been filed on this vehicle in over 12 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2006 Nissan Altima has well-documented powertrain defects: manual transmissions experience repeated clutch pedal failure (sinking to floor, rendering the car undriveable) often within 35,000–40,000 miles, while automatics suffer stalling and transmission problems. Nissan has not issued recalls despite acknowledging the issues internally.
Owners of 2006 Nissan Altimas describe two major clusters of powertrain failures: clutch and transmission problems in manual-transmission models, and stalling/sensor issues in both automatic and manual variants.
Manual Transmission / Clutch: A recurring pattern appears across many complaints—the clutch pedal loses pressure and sinks to the floor, often during driving or after traffic, leaving owners unable to shift gears or stranded on roadsides. Owners report this happens multiple times over the vehicle's life, sometimes as early as 6,000–44,000 miles. Many state the issue resolves temporarily by pumping the pedal or waiting a few minutes. Several mention discovering DOT 3 fluid breakdown in hot conditions or heavy traffic is the root cause; others note replacement of master and slave cylinders did not permanently solve the problem. Dealers frequently claim inability to reproduce the issue. One owner documented the clutch failing twice within 18 months at 35,000–40,000 mile intervals. Owners cite online forums describing this as a widespread defect and express frustration that Nissan has not issued a recall despite acknowledging the problem internally.
Automatic Transmission / Stalling / Sensor Failures: Owners describe sudden engine stalling at highway speeds or in traffic, sometimes with power loss and difficulty restarting. Check engine lights point to crankshaft position sensors or camshaft position sensors. Some report the vehicle becomes stuck in 5th gear. A few owners cite being struck or nearly struck due to these failures. One owner references a prior recall (07v-527) that apparently did not permanently fix the issue.
Gear Shift Lock Failures: Several owners cannot move the selector out of Park or into Park, requiring use of the shift lock release button or manual override tools. Dealers attribute this to wiring shorts or fluid spills, though owners deny any spillage occurred.
Same Nissan Altima powertrain reports on nearby years: 2005 · 2007 · 2008 · 2009
Failure modes owners describe
Clutch Pedal Loss of Pressure / Sinking to Floor
The clutch pedal loses hydraulic pressure and sinks to the floor, leaving the driver unable to disengage the transmission or shift gears. The failure is intermittent but recurs over the vehicle's life. Owners report pumping the pedal or waiting minutes temporarily restores pressure. Root cause appears to be DOT 3 brake fluid breakdown in heat or heavy traffic, though master and slave cylinder replacement does not permanently resolve it.
When: As early as 6,000 miles; recurring through 80,000+ miles; often after prolonged traffic or hot ambient temperatures
Symptoms owners cite: Clutch pedal loses all resistance and sinks to floor; Unable to shift gears or disengage transmission; Pedal stuck halfway or full down; requires foot manipulation to release; Vehicle stranded on roadside until pressure returns; Temporary recovery by pumping pedal repeatedly or waiting; Howling/shuttering on release from stop (some cases); Vehicle stalls on hill or in traffic due to inability to engage gear
Repairs/costs cited: Master and slave clutch cylinders replaced (cost cited as ~$710–$1,000+ including flywheel); fluid top-off or replacement performed; owner forums mention DOT 4/5.1 fluid substitution attempted
Recalls/TSBs owners mention: Nissan internal communication confirms known issue with 2006 Altima SE-R clutch systems and typical failure at 35,000–40,000 miles; no recall issued; dealers often claim inability to duplicate; warranty typically does not cover clutch failure
Engine Stalling / Loss of Power
Engine shuts down suddenly during highway driving, traffic, or low-speed operation, sometimes leaving the vehicle difficult to restart. Check engine light illuminates with sensor codes. Vehicle may restart normally or require extended cranking. Some owners report this happened after a prior recall repair attempt.
When: Mileage varies; one cited after recall repair; another at 103,000 miles; multiple instances across different mileages
Symptoms owners cite: Engine stalls without warning at highway speeds or in traffic; Loss of power steering when engine dies; Difficulty or extended cranking required to restart; Check engine light illuminates; Vehicle stuck in 5th gear after stall/restart (some cases); Bucking or lagging acceleration after restart; Multiple stall events within days or weeks
Codes mentioned: Crankshaft position sensor fault, Camshaft position sensor fault, High-speed input sensor fault
Repairs/costs cited: Crankshaft or camshaft position sensors replaced; computer replacement performed in at least one case; fuel pulsar replaced in one attempt; extended cranking persists in some cases even after sensor replacement
Recalls/TSBs owners mention: One owner references recall #07v-527 which apparently did not permanently fix the issue; manufacturer was notified in some cases but offered limited assistance
Transmission Stuck in 5th Gear / Downshift Hesitation
Automatic transmission becomes stuck in 5th gear or fails to downshift properly, leaving the vehicle at highway speed despite reduced load. Manual transmission may drop out of 5th gear into neutral. Severe downshift hesitation reported at highway speeds.
When: Mileage varies; one at 10,800 miles on new vehicle; another at 106,000 miles; others intermittent over vehicle lifetime
Symptoms owners cite: Transmission stuck in 5th gear; vehicle will not downshift; Transmission drops out of 5th into neutral; Hard/violent downshift with hesitation; RPM surge when stuck in high gear with cruise control engaged; Vehicle accelerates unexpectedly without driver input; Hard shifts during acceleration or deceleration
Repairs/costs cited: Transmission fluid added or flushed; transmission rebuild/replacement recommended in at least one case; computer replacement performed in one complaint
Gear Shift Lock / Selector Stuck or Non-Responsive
The gear selector becomes stuck in Park, unable to move to other gears, or stuck in Drive unable to return to Park. Failures are intermittent initially, then progressively worse. Dealers attribute to wiring shorts from spilled liquid (though owners dispute spillage) or internal solenoid/module failure. Rocking vehicle back and forth temporarily alleviates the problem.
When: Varies; one at 23,000 miles; another at ~50,000 miles; recurring issue in some vehicles
Symptoms owners cite: Gear selector stuck in Park; will not shift to Drive or other gears; Gear selector stuck in Drive; will not return to Park; Intermittent sticking that becomes progressively worse; Temporary relief by rocking vehicle back and forth; Manual shift override switch becomes unresponsive; Vehicle stalls when trying to shift; Vehicle won't shift out of gear when parked
Repairs/costs cited: Shift lock solenoid replaced; shift lock control unit/module replaced (cost cited $300–$922); wiring harness inspection performed; complete gear shifter assembly replaced in some cases
Recalls/TSBs owners mention: Nissan refused warranty assistance in at least one case; dealers performed repairs but some remain unresolved despite multiple attempts
Speedometer / Speed Sensor Error
Vehicle reads consistently 5–7 mph slower than actual speed, causing tire spin rate mismatch and affecting odometer/mileage readings. Owner believes this causes reduced perceived fuel economy and driving hazards.
When: At 43,500 miles reported
Symptoms owners cite: Speedometer reads 5–7 mph lower than actual vehicle speed; Wheels spin faster than indicated speed suggests; Odometer mileage may not reflect actual distance traveled; Apparent reduction in fuel economy
Recalls/TSBs owners mention: Owner referenced CBS News story on the issue; owner sought recall information on speed sensor or wheels
Transmission Slipping / Loss of Power in Gear
Automatic transmission slips out of gear or loses power during driving or turning, causing sudden loss of acceleration. Vehicle does not respond to throttle input despite engine running.
When: Varies; one at 30,000 miles after head gasket failure
Symptoms owners cite: Transmission slips out of gear while driving; Loss of acceleration despite engine running; Vehicle will not accelerate past 30 mph even with full throttle; Hard time going from stopped position to moving; Accelerator response lags or unresponsive; Vehicle accelerates on its own without driver input
Repairs/costs cited: Transmission fluid added; transmission replacement performed after engine head gasket repair; transmission leak diagnosed
Recalls/TSBs owners mention: Manufacturer was made aware in at least one case
Synthesized from 69 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
I have had my engine replaced as a recall but windsor Nissan has no record when I asked for the report. I went in to the dealer on 12/16/10 at 5:30 pm because I was having problems as the gear shift was getting stuck in park and couldn't move at all. I read the book which says to push the shift lock release button which will let me move the gear shift temporarily. I then contacted the dealer…
Had powertrain trouble with your 2006 Nissan Altima?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2006 Nissan Altima?
It's a meaningful issue. 69 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 57 complaints that reported odometer mileage, most powertrain failures cluster between 30,040 and 118,031 miles, with the median around 63,000. A quarter of owners report trouble before 30,040; a quarter make it past 118,031. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Nissan/Altima.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.