SERVICE INFORMATION Replacement 5-speed rear wheel drive Automatic Transmission (A/T) assemblies and replacement control valves (valve bodies) now come with blank Transmission Control Modules (TCMs). Blank TCMs come without software and must be programmed (not reprogrammed) and then configured after they are installed. When ordering a replacement A/T or control valve, use the Nissan electronic parts information systems to obtain the correct software program part number See this bulletin for further detail.
full bulletin at NHTSA ↗2006 Nissan Xterra powertrain problems
moderate 174 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
174
Recalls
0
Avg fix
$2,500
2crashes
2fires
4injuries
When does it fail?
Of the 174 powertrain complaints filed for the 2006 Nissan Xterra, here's the actual mileage breakdown — failures cluster heaviest at 125,000-150,000 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 174 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.
Among the 8 model years of Nissan Xterra in our records for powertrain problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
IF YOU CONFIRM: A remanufactured automatic transmission supplied by ATC Drivetrain is installed in an APPLIED VEHICLE AND CONSULT-III plus (C-III plus) is not able to communicate with the TCM through Diagnosis (One System) OR C-III plus is able to communicate with the TCM, but the TCM part number?s (P/N) sixth digit is a "5", "6", or "7" (for example, 31020-7xxxx). NOTE: To determine if an applied vehicle is equipped with an ATC Drivetrain remanufactured A/T, see page 3. ACTION: Refer to the Flow Chart on page 2. See this bulletin for further detail.
full bulletin at NHTSA ↗SERVICE INFORMATION When diagnosing possible power steering gear (rack and pinion steering rack, or steering rack) leak issues, it may appear the steering rack is leaking when actually, it?s not. Use this service bulletin to help make a more accurate diagnosis of the steering rack. See this bulletin for further detail.
full bulletin at NHTSA ↗SERVICE INFORMATION If a customer describes lack of power or poor acceleration, perform the following checks before attempting any repair: * Check for stored DTCs. * Check if the driver is resting their left foot on the brake pedal while accelerating. Advise the customer not to rest their foot on the brake while accelerating. * Use CONSULT-III plus in Engine Data Monitor to check operation of the brake lamp circuit signal. Monitor the brake switch during the incident; it should be "OFF". Please see this bulletn for further details.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2006 Nissan Xterra develops a critical powertrain failure stemming from a defective radiator design. The radiator's internal transmission-cooler lines crack, allowing engine coolant to leak into the automatic transmission fluid. This contamination—described by owners as a "strawberry milkshake" or "pink slurry"—permanently damages the transmission's internal components, including the valve body, torque converter, and solenoid-controlled hydraulic circuits. Owners report this problem occurs across a broad mileage range, commonly appearing between 54,000 and 130,000 miles, though some catch it earlier through warning signs.
Early symptoms include rough idle, hesitant shifting, transmission slippage (sudden loss of power at highway speeds), violent shaking or vibration between 30–60 mph, and transmission fluid that appears foamy or pinkish. The heating system often malfunctions first—heater blowing cold air even at idle—because the same coolant pathways are involved. Once contamination occurs, simply flushing the transmission does not fix it; the transmission control module and internal seals are already compromised. Repair costs run $3,000–$9,200 depending on shop and parts availability. Many owners are denied coverage because their mileage exceeds Nissan's extended warranty caps (80,000–100,000 miles), despite the defect being manufacturer-known. Nissan has offered partial assistance through litigation settlements, but only for vehicles that fail within the warranty window and owner-initiated claim timeframes that have since expired.
Same Nissan Xterra powertrain reports on nearby years: 2005 · 2007 · 2008
Failure modes owners describe
Radiator-to-transmission coolant leak causing fluid cross-contamination
Internal crack in the radiator's transmission-cooler line (or direct radiator housing failure) allows pressurized engine coolant to mix with automatic transmission fluid, forming a toxic emulsion that destroys the transmission's internal hydraulic circuits, valve body, solenoid switches, and transmission control module.
When: 54,000–130,000 miles; commonly 90,000–110,000 miles
Symptoms owners cite: Transmission slips or refuses to shift under load, especially during acceleration or merging; Engine revs but vehicle does not accelerate (torque converter lockup failure); Violent shaking/vibration at 30–60 mph, described as driving over rumble strips; Loss of power during highway driving; vehicle slows to 20–30 mph despite full throttle; Transmission fluid appears pinkish, foamy, or watery; coolant reservoir appears milky or contains trans fluid; Check engine light illuminates; transmission warning lights may appear; Heater blows cold air even when engine is warm (coolant diversion to leaking line); Harsh, delayed shifts; grinding noise when shifting; Vehicle may stall or fail to start due to transmission control module corrosion from coolant
Codes mentioned: P0720 (speed sensor circuit), Service Engine Soon / Check Engine Light (non-specific transmission codes), Transmission Control Module (TCM) faults due to water intrusion, Multiple shift-control solenoid codes
Repairs/costs cited: Radiator replacement ($500–$900), automatic transmission rebuild or replacement ($2,500–$4,500 for rebuild; $4,000–$6,000+ for new OEM); transmission control module replacement ($1,400–$3,000); complete transmission fluid flush and refill; hose replacement. Some shops recommend external transmission cooler bypass to prevent recurrence. Total repair: $3,000–$9,200. Transmission rebuild time: 2–3 weeks or longer due to parts backorder.
Recalls/TSBs owners mention: Nissan extended powertrain warranty from 60,000 to 80,000–100,000 miles (year/mileage limit varies) via class-action settlement; offered partial reimbursement (typically 70% after $3,000 deductible) for owners whose vehicles failed within warranty window and claimed before suit deadlines (many deadlines passed 2012–2013); discontinued assistance for vehicles exceeding mileage caps or outside claim windows despite ongoing failures; redesigned radiator in 2010 model year but never issued full recall; some owners report Nissan service departments advised them of the known issue but offered no assistance; NHTSA investigation (DP12004) opened June 2012 but reportedly remained open without recall issuance.
Clutch assembly failure (manual transmission models)
Manual transmission clutch disc shatters or wears excessively at low mileage, causing sudden loss of throttle response and inability to engage gears.
When: 7,954–49,000 miles; typically within first 12–24 months of ownership
Symptoms owners cite: Clutch suddenly fails or loses engagement without warning; Clutch pedal becomes soft or unresponsive; Vehicle loses ability to accelerate after clutch engagement failure; Grinding or shattered-component noise when attempting to engage clutch
Repairs/costs cited: Clutch disc, flywheel, pressure plate, release bearing, and first-shaft bushing replacement. Owner-paid cost: $2,000–$2,100. Dealership noted expected clutch life should be 60,000–70,000 miles, but failures occur at 1/7 to 1/10 that mileage.
Recalls/TSBs owners mention: Nissan initially denied warranty coverage as clutch is classified a 'wear' part; some dealers later covered repairs after arguing no driver misuse was evident; no recall issued despite multiple online reports of premature failure at similar mileage across multiple owners.
Timing chain tensioner/guide wear (VQ40DE engine)
Factory timing chain tensioner guides wear through prematurely, allowing the timing chain to rub directly against the metal tensioner post and housing cover, creating excessive noise and risk of catastrophic engine failure.
When: 96,000+ miles
Symptoms owners cite: High-pitched whining noise during cold start and warm running; Whining 'flare' noise on acceleration; Grinding or slapping sound from the timing chain area
Repairs/costs cited: Timing chain tensioner guides and timing chain replacement. Nissan confirmed the parts were redesigned after original failure. Cost approximately $2,200 for parts and labor.
Recalls/TSBs owners mention: Nissan redesigned the faulty guides after failures were documented; confirmed via dealership diagnosis that this is a known problem; Nissan refused cost-sharing assistance even after consumer reported the failure to Nissan USA Consumer Affairs; dealership urged owner to report to federal authorities due to safety risk of catastrophic engine failure.
Transmission control module (TCM) corrosion due to coolant intrusion
Coolant contamination of the transmission fluid corrodes the low-current electronic transmission control module housed on the valve body, causing module failure and loss of transmission control. Fresh transmission fluid alone does not fix this; the module must be replaced as part of a new valve body assembly.
When: Occurs after coolant-transmission cross-contamination; can take months or years before module corrosion manifests as electrical failure
Symptoms owners cite: Blown transmission control fuses; Vehicle will not start despite electrical power present; Loss of transmission engagement after previous repairs (transmission flushed but module still failed); Sudden deceleration from 55 mph to 30 mph with RPMs spiking to 4,000+; Transmission shifts erratically or fails to shift
Codes mentioned: NHTSA Action Number: DP12004 (references TCM/PCM control module failure)
Repairs/costs cited: Transmission control module replacement only available as part of new valve body assembly from Nissan. Cost: $1,400+ for module/valve body replacement alone; total transmission repair can exceed $5,500 when combined with radiator and transmission rebuild.
Recalls/TSBs owners mention: Nissan confirmed via dealership that this is a secondary failure caused by the radiator coolant leak; refused cost assistance after the fact, citing warranty expiration; customer had to repair vehicle out-of-pocket.
Synthesized from 174 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
The initial incident was failed timing chain tensioner guides. As indicated earlier Nissan knowingly redesigned the parts since the originals were found to wear through, causing the timing chain to rub directly on the metal post of the tensioner and contact the housing cover. During the repair the Nissan service department confirmed the failed radiator coolant contamination addressed in odi…
We noticed a higher pitch noise from the vehicle in august 2013 during all running times (cold start, warm running, etc) in my pregnant wife's car with about 90,000 miles on vehicles (inspected fluids, belts, and engine area without notice to any issues- assumed it was the sub-freezing temperatures ~5-16*f). Regular maintenance has bee conducted on the vehicle since purchase (original owners),…
The vehicle would stall or rather the transmission would not shift mostly out forth to fifth, or even third to forth. The engine seems fine. Pull the transmission dipstick, the fluid is dark and smells burnt. *tr
Check engine light came on, took to mechanic for a check and found that we were leaking radiator coolant into the transmission fluid. Had to replace parts and flush transmission at a pricey cost. *tr
Had powertrain trouble with your 2006 Nissan Xterra?
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 Xterra?
It's a documented issue but not catastrophic. 174 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Across the 161 complaints that reported odometer mileage, most powertrain failures cluster between 94,673 and 131,000 miles, with the median around 110,000. A quarter of owners report trouble before 94,673; a quarter make it past 131,000. 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/Xterra.
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.