This 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 accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
full bulletin at NHTSA ↗2007 Chevrolet Tahoe powertrain problems
moderate 45 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
45
Recalls
0
Avg fix
$2,500
1crash
1injury
When does it fail?
Of the 45 powertrain complaints filed for the 2007 Chevrolet Tahoe, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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 45 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 17 years — the issue may be aging out of the active population.
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.
GM 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 inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
full bulletin at NHTSA ↗This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
full bulletin at NHTSA ↗This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
full bulletin at NHTSA ↗This 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 explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2007 Tahoe powertrain is plagued by several recurring failures, most notably transmission problems. The 4L60E transmission fails to engage forward gears (Drive, 3rd, 4th) without warning, leaving owners stranded with only Reverse and lower gears working. This happens as early as 12,000 miles and is attributed to a faulty stamped-metal forward sprag component; owners reference a GM Technical Service Bulletin for an updated part. Transmissions also slip repeatedly under acceleration or during shifts, with burnt bands and worn clutch packs found during rebuilds.
Unintended acceleration is another serious issue: the engine accelerates to fuel cutoff and maintains speed regardless of brake input, sometimes climbing to 5000+ RPM on restart. Multiple accelerator pedal replacements, ECM reprogramming, and sensor work fail to resolve it. Stabilitrak and Traction Control malfunction constantly, engaging and disengaging without button input and sometimes causing steering lockup or power loss.
The Active Fuel Management system causes excessive oil consumption (1 quart per 300–1000 miles) and lifter collapse, particularly in cylinder 6, producing loud ticking and severe misfires. Throttle body sticking causes reduced power, hesitation, and stalling. Electrical gremlins cause multiple dash lights and gauges to malfunction simultaneously, with vehicle stalls and restarts that clear all diagnostic codes. These are not isolated incidents; owners report finding thousands of complaints online for the same vehicle model year, suggesting widespread design or manufacturing defects.
Same Chevrolet Tahoe powertrain reports on nearby years: 2005 · 2008 · 2009
Failure modes owners describe
Unintended acceleration / Stuck throttle
Engine maintains or increases speed with no throttle input; vehicle accelerates to fuel cutoff and brakes cannot stop it. Some cases involve rapid RPM climb to 5000+ on restart.
When: Occurs 0-9 times daily; at higher speeds or city streets; most common at initial driving events
Symptoms owners cite: Vehicle accelerates without pedal input; Unresponsive to brake application even at 100%; RPM climbs to 5000+ immediately on restart; Smoke and odor from hard braking; Engine power reduced / stabilitrak disabled messages; Hesitation on acceleration from stops
Codes mentioned: Service Engine Soon light, Reduced Engine Power, Service Stabilitrak, Service Traction Control
Repairs/costs cited: Accelerator pedal replaced, ECM/PCM replaced and reprogrammed, Input Speed Sensor replaced, 1-2 shift solenoid replaced, Control Valve Body reconditioned; vehicle data recorder (VDR) used for diagnostics; issues persist after multiple repairs
Recalls/TSBs owners mention: Multiple service attempts over 90+ days without resolution; GM downloaded VDR data, confirmed issues, requested additional recordings; some owners report dealer stated throttle body sticking required replacement
4L60E transmission forward gear failure
Forward gears (Drive, 3rd, 4th) fail suddenly without warning; vehicle only moves in Reverse and lower gears (1st, 2nd). Owners cite faulty stamped-metal forward sprag component as root cause and reference GM Technical Service Bulletin (TSB).
When: Between 12,000–113,000 miles; often occurring at complete stop or during low-speed maneuvers
Symptoms owners cite: Loud bang or grinding noise; RPM races but no forward motion; Only Reverse, 1st, and 2nd gears work; Inability to accelerate forward; Sudden loss of drive while in traffic; Transmission slipping before complete failure
Codes mentioned: Service Engine Soon light, Transmission error codes
Repairs/costs cited: Requires full transmission rebuild or replacement; forward sprag component, clutch packs replaced; owners report $2000–$5000+ labor and parts costs; one owner cited TSB release for updated component
Recalls/TSBs owners mention: GM TSB released for updated forward sprag component (per owner report); warranty coverage varies; some repairs performed under manufacturer warranty at 18,500 miles, others denied as out-of-warranty or owner-maintained
Transmission slipping and loss of engagement
Transmission slips under acceleration, shifts rough or with hard jerking; intermittent loss of power during shifts; burnt bands and worn clutch components found on inspection.
When: Early in ownership (27,000 miles or less); worse when cold or during hard acceleration and cornering
Symptoms owners cite: Transmission slips 50+ times over 20,000 miles; Rough downshifts with jerking or banging; Hesitation during acceleration; Hard shift into lower gears; Grinding noise from transmission
Codes mentioned: Service Engine Soon light, Transmission error messages
Repairs/costs cited: Transmission fluid flushed at 100,000 miles per GM recommendation; rebuilt transmissions with 2 clutch packs replaced; burnt bands discovered during inspection; replacement with 'like part' (same design) offered despite prior failure
Recalls/TSBs owners mention: Dealers claim slipping is normal behavior ('stiff when cold,' 'common for trucks'); no updated parts offered; replacement with original failed design; some repairs covered under warranty
Stabilitrak / Traction Control malfunction
Stabilitrak and Traction Control lights engage and disengage without button input; system disables without warning; steering wheel may lock, power loss occurs, door locks cycle, alarm sounds.
When: Throughout ownership; some cases start around 100,000 miles; random or during normal driving
Symptoms owners cite: Stabilitrak and Traction Control lights flashing on/off; Service Stabilitrak message; Service Traction Control message; Steering wheel locks briefly; Door locks lock/unlock without input; Car alarm activates unexpectedly; Hazard blinkers malfunction; Loss of power during episodes; ABS light flashing
Codes mentioned: Service Stabilitrak, Service Traction Control, ABS light active
Repairs/costs cited: Multiple repair attempts (6+ for one owner) with no lasting fix; no codes read when vehicle turned off (codes reset); BCM or PCS suspected by owner; throttle body replacement attempted
Recalls/TSBs owners mention: Service attempted multiple times; no root cause identified; codes clear between service visits; issues persist after repairs
Excessive oil consumption due to Active Fuel Management
Engine burns oil at extreme rate (1 quart per 300–1000 miles) through pistons when Active Fuel Management (displacement on demand) system is enabled. Blue smoke from exhaust.
When: Throughout ownership with AFM enabled; improves significantly or stops when AFM disabled
Symptoms owners cite: Blue-tinted smoke from tailpipe; Oil dipstick low between services; Oil consumption rate 1 quart per 300–1000 miles; Engine shutdown risk due to low oil pressure; No oil consumption when AFM turned off
Repairs/costs cited: Lifters, camshaft, pistons, piston rings, and oil pump replaced by GM without resolving issue; oil consumption persists after component replacements
Recalls/TSBs owners mention: GM aware of issue and attempted repairs (lifter/camshaft/piston replacements); no fix has worked; some owners report dealers aware but have no solution
Lifter collapse and misfire (cylinder 6)
Lifter collapses causing severe misfire, ticking noise, and shaking. Cylinder 6 is most commonly reported. Active Fuel Management system implicated.
When: As early as 20,000 miles; some cases after 100,000 miles
Symptoms owners cite: Loud ticking noise from engine; Cylinder 6 misfire codes; Severe engine shaking and bucking; Service Engine Soon light; Stabilitrak/Traction Control warning lights; Hard starting
Codes mentioned: Cylinder 6 misfire, Service Engine Soon
Repairs/costs cited: All 16 lifters, camshaft, head gaskets, and oil pump replaced in one case; misfire persisted after repairs; pistons inspected and found intact; another owner quoted $3,500–$4,500 for lifter/camshaft/head gasket work
Recalls/TSBs owners mention: Dealers aware of lifter issues; some customers told to purchase new engine or new vehicle; GM attributes to Active Fuel Management system design
Accelerator pedal sensor failure
Accelerator pedal sensor fails repeatedly (third failure in one vehicle), causing reduced engine power and traction control errors during highway acceleration.
When: Multiple failures in same vehicle; occurs during acceleration onto highways or interstates
Symptoms owners cite: Engine power reduced while accelerating; Reduced speed (5 mph despite acceleration); Service Stabilitrak message; Service Traction Control message; Loss of acceleration response
Codes mentioned: Accelerator Pedal Sensor failure, Reduced Engine Power, Service Stabilitrak, Service Traction Control
Repairs/costs cited: Accelerator pedal sensor replaced; repeated failures (3+ times in one vehicle)
Recalls/TSBs owners mention: Dealer indicated they see this problem very often but note it is unusual for one vehicle to experience it this frequently
Throttle body sticking and reduced power
Throttle body sticks causing intermittent reduced engine power, hesitation on acceleration, difficulty accelerating (especially in lower gears), and frequent stalling.
When: Throughout ownership; worse in wet weather
Symptoms owners cite: Engine power reduces unpredictably; Reduced Engine Power message; Service Traction Control message; Service Stabilitrak message; Vehicle hesitates on acceleration; Difficult acceleration in lower gears; Complete loss of power mid-drive; Stalling 1–3 times per driving session; Worse during heavy rain
Codes mentioned: Reduced Engine Power, Service Stabilitrak, Service Traction Control
Repairs/costs cited: Throttle body replacement performed; problem persists or worsens after repair
Recalls/TSBs owners mention: Dealership diagnosed throttle body sticking; no other solutions offered
Timing chain off time / bent cylinder
Timing chain goes out of time, bending cylinder and causing severe engine damage.
When: Unknown mileage in one report
Symptoms owners cite: Engine damage; Bent cylinder
Repairs/costs cited: Complete engine damage requiring ~$4,500 repair; owner paid out of pocket after dealer refusal to assist
Recalls/TSBs owners mention: GM refused to acknowledge deficiency; no warranty coverage provided
Front differential pinion seal failure
Pinion seal fails allowing water to enter differential; occurs three times on same vehicle. Loud noise, especially in 4WD.
When: First failure around 2009; subsequent failures at unknown intervals
Symptoms owners cite: Loud noise from front differential; Louder in 4-wheel-drive mode; Vehicle does not feel right in 4WD; Water contamination in differential fluid
Repairs/costs cited: First repair (2009) covered under factory warranty; subsequent two rebuilds cost owner $1,435.49 total
Recalls/TSBs owners mention: First failure covered under manufacturer warranty; subsequent failures not covered
Transmission will not shift into Park / vehicle rolls in Park
Transmission stays in Neutral or fails to fully engage Park; vehicle rolls backward on incline despite gear selection.
When: At various mileages (50,000–247,000 miles)
Symptoms owners cite: Gear shifter will not move into Park; Vehicle remains in Neutral; Vehicle rolls backward while in Park; Vehicle rolls backward even with parking brake engaged; Rough shifting in lower gears
Repairs/costs cited: Dealership confirmed transmission problem; no other work documented
Recalls/TSBs owners mention: No diagnostic test performed in one case; transmission replacement recommended without root-cause analysis
4-wheel-drive engagement failure
4-wheel-drive fails to activate when selector knob turned; system shows 'Service 4-wheel-drive' message.
When: During adverse weather driving (snow)
Symptoms owners cite: 4-wheel-drive does not activate; Service 4-wheel-drive message; Selector knob turns but no engagement; Vehicle slides off road due to lack of traction
Codes mentioned: Service 4-wheel-drive
Repairs/costs cited: Not repaired in narrative provided
Transmission one-way clutch failure
One-way clutch inside transmission fails; vehicle loses ability to pull itself forward.
When: Early ownership (20,748 miles)
Symptoms owners cite: Vehicle stops pulling forward; Complete loss of transmission power
Repairs/costs cited: Transmission removed and torn down; one-way clutch replaced; seals replaced; oil cooler and lines flushed
Torque converter failure / low power
Torque converter fails causing low power and transmission slipping issues.
When: Unknown timing
Symptoms owners cite: Low power during acceleration; Transmission slipping
Repairs/costs cited: Owner reports this is common and notes it is not purely a transmission issue but electrical
Electrical system malfunction / body control module failure
Multiple electrical components reset simultaneously (lights, locks, gauges, transmission); vehicle stalls and will not restart. Suspected BCM or PCS failure.
When: Various instances; some occurring after 100,000 miles
Symptoms owners cite: Stabilitrak/Traction Control lights flash; ABS light flashes; Speedometer and gauges swing wildly or flatline; Power locks lock/unlock repeatedly; Engine stalls; Vehicle will not restart; Brake lights turn off; Engine power reduces
Codes mentioned: Multiple simultaneous codes (ABS, Stabilitrak, Traction Control, Check Engine)
Repairs/costs cited: Dealership reset error codes twice; no root cause identified; problem recurs within two weeks
Recalls/TSBs owners mention: Dealership unable to diagnose; can only reset codes
Spark plug fouling (cylinder 1)
Number 1 cylinder continues to foul spark plugs despite repeated replacements; engine runs poorly with low idle.
When: Recurring issue; plug change fixes problem for ~5 miles only
Symptoms owners cite: Fouled spark plugs in cylinder 1; Low idle; Poor engine running; Stabilitrak malfunction message
Codes mentioned: Service Stabilitrak
Repairs/costs cited: Spark plugs replaced, wires replaced, coil pack replaced; problem recurs within 5 miles
Synthesized from 45 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Vehicle will accelerate and max out at fuel cut-off. Acceleration is unresponsive to brake application to include 100% application, resulting in smoke and odor. Vehicle cannot be stopped other than placing the vehicle into neutral and turning the ignition off. Upon restarting the vehicle, RPM will immediately climb to in excess of 5000 RPM. Acceleration problems normally occur at higher speeds…
Had powertrain trouble with your 2007 Chevrolet Tahoe?
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 2007 Chevrolet Tahoe?
It's a documented issue but not catastrophic. 45 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 40 complaints that reported odometer mileage, most powertrain failures cluster between 27,578 and 130,000 miles, with the median around 64,012. A quarter of owners report trouble before 27,578; a quarter make it past 130,000. 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/2007/Chevrolet/Tahoe.
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.