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2005 Pontiac G6 Transmission & Power Train Problems

NHTSA component category: POWER TRAIN · data through 07/14/2026

39Power Train complaints
5.7%Of all 679 complaints
#4Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How power train ranks on this vehicle

STEERING404 · 59.5%
ELECTRICAL SYSTEM79 · 11.6%
EXTERIOR LIGHTING47 · 6.9%
POWER TRAIN39 · 5.7%
STEERING:ELECTRIC POWER ASSIST SYSTEM31 · 4.6%

Share of the 679 complaints citing each category; one complaint can cite several. Full breakdown on the 2005 Pontiac G6 overview page.

What owners report

“TOO MANY COMPLAINTS TO WRITE THEM ALL UP, HERE ARE A FEW: ENGINE MAKES METAL GRINDING "WHOOSHING" NOISE INDEPENDENT FROM ACCELERATION-DEALER CANNOT REPLICATE, WARPED ROTORS-DEALER…”NHTSA complaint 10209797 — filed 11/24/2007

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Power Train complaints by year filed

220101320123102014352016212018112020112022112025

Frequently asked questions

Does the 2005 Pontiac G6 have transmission & power train problems?

Power Train is the #4 most-reported problem area on the 2005 Pontiac G6: 39 of 679 complaints on file (5.7%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2005 Pontiac G6 have in total?

679 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 26 involved a crash, 4 involved a fire, 17 reported injuries, and none reported deaths.

What does NHTSA's power train category include?

NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.