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 ↗2008 Chevrolet Equinox powertrain problems
moderate 11 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
11
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 11 powertrain complaints filed for the 2008 Chevrolet Equinox, 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
No new NHTSA powertrain complaint has been filed on this vehicle in over 11 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 2008 Chevrolet Equinox powertrain complaints center on transmission failures, primarily involving wave plate and transmission control module defects. The most common complaint is loss of 3rd gear engagement, with owners reporting hard shifting and jerking, especially in reverse. Multiple owners state that transmissions fail completely and suddenly—sometimes with zero warning signs, no check engine light, and no symptoms beforehand—forcing total transmission replacement at 43,000 to 109,000 miles. One owner's vehicle stopped moving forward while carrying three children, with no dash warning at all.
Owners report GM acknowledges a transmission service bulletin exists but refuses to issue a recall or cover repairs outside the powertrain warranty period. One owner claimed eligibility for an extended warranty specific to this defect but was denied coverage. GM offered a partial $1,500 subsidy toward the $3,500 repair in one case. Owners also cite transmission control module failure as a root cause leading to clutch wave plate failure, describing random limp-mode engagement, violent downshifting, and delayed shifting as safety hazards. One vehicle experienced camshaft misalignment at 91,000 miles. Multiple owners report speaking with other GM owners experiencing identical transmission failures, and several mention the vehicle carries over 39 recalls.
Same Chevrolet Equinox powertrain reports on nearby years: 2006 · 2007 · 2009 · 2010 · 2011
Failure modes owners describe
Wave plate failure causing loss of 3rd gear
Faulty wave plate in transmission prevents engagement of 3rd gear. Owners report being told by GM that a transmission bulletin exists for this issue, though no recall has been issued.
When: 43,000 to 109,000 miles; some vehicles still in extended warranty window
Symptoms owners cite: Loss of 3rd gear engagement; Hard time shifting into 3rd; Jerking into gear, especially reverse
Repairs/costs cited: Full transmission replacement typically required; repair costs cited as $1,500–$3,500 depending on labor. One owner replaced transmission at 43,000 miles.
Recalls/TSBs owners mention: GM acknowledges technical service bulletin on transmission but denies coverage outside warranty period; offered partial $1,500 subsidy in one case. Extended warranty coverage disputed—one owner claimed eligibility but was denied.
Sudden total transmission failure with no warning
Transmission stops moving forward abruptly while vehicle is in operation, with no warning signs or error lights beforehand.
When: Occurred without prior symptoms; one vehicle had tune-up less than a month before failure
Symptoms owners cite: Vehicle stops going forward with no warning; No check engine lights or warning indicators; No jerking or prior symptoms; Complete loss of drive
Repairs/costs cited: Estimated repair costs $1,700–$3,500. One owner unable to afford repair.
Transmission Control Module failure leading to clutch wave plate failure
Owner reports that TCM failure causes clutch wave plate failure, resulting in catastrophic transmission failure. Characterized as a safety issue.
Symptoms owners cite: Delayed shifting from park to drive; Random entry into limp mode; Vehicle limits speed to 15 mph when limp mode activates; Violent downshifting almost to engine over-run; Difficulty shifting gears
Hard shifting and stalling under acceleration
Gears become difficult to shift; vehicle stalls during normal driving. Check engine light illuminates.
When: 79,782 miles
Symptoms owners cite: Difficult gear shifting at 35 mph; Check engine warning light; Vehicle stalling
Repairs/costs cited: Transmission replacement recommended by dealer.
Acceleration hesitation and transmission misfire causing stall
Acceleration hesitation in traffic causes transmission to misfire and vehicle to stall. Owner notes vehicle has 39+ recalls.
Symptoms owners cite: Acceleration hesitation during traffic; Transmission misfire; Vehicle stalling during traffic
Recalls/TSBs owners mention: Owner in dispute with Chevy dealership over repair responsibility.
Camshaft misalignment
Camshaft becomes misaligned, triggering check engine warning light during normal driving.
When: 91,000 miles
Symptoms owners cite: Check engine warning light at 45 mph; Camshaft misalignment
Repairs/costs cited: Identified at dealership but owner did not proceed with repair.
Recalls/TSBs owners mention: Manufacturer notified but not further detailed.
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Tl* the contact owns a 2008 Chevrolet equinox. While driving approximately 35 MPH, the gears became difficult to shift and the check engine warning light illuminated. In addition, the vehicle stalled. The vehicle was towed to the dealer where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure…
Had powertrain trouble with your 2008 Chevrolet Equinox?
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 2008 Chevrolet Equinox?
It's a documented issue but not catastrophic. 11 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 8 complaints that reported odometer mileage, most powertrain failures cluster between 79,782 and 130,000 miles, with the median around 93,000. A quarter of owners report trouble before 79,782; 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/2008/Chevrolet/Equinox.
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.