2005 Pontiac Grand Prix Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/12/2026
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
Share of the 148 complaints citing each category; one complaint can cite several. Full breakdown on the 2005 Pontiac Grand Prix overview page.
What owners report
“THE CONTACT OWNS A 2005 PONTIAC GRAND PRIX. WHILE DRIVING 65 MPH, THE SPEEDOMETER GAUGE FLUCTUATED. THE VEHICLE JERKED VIOLENTLY, ACCELERATED, AND DECELERATED INDEPENDENTLY. THE…”NHTSA complaint 10637665 — filed 09/19/2014
“THE CONTACT OWNS A 2005 PONTIAC GRAND PRIX. THE CONTACT STATED THAT THE STEERING WHEEL SEIZED. THE CONTACT MENTIONED THAT WHEN ATTEMPTING TO START THE…”NHTSA complaint 10609285 — filed 07/09/2014
“VEHICLE STARTED DISENGAGING CRUISE CONTROL AND TRACTION CONTROL , VEHICLE THEN STARTED JERKING/SHIFTING HARD AND OVERHEATING, FOLLOWED BY VEHICLE SHIFTING FROM ONE SET POSITION OF…”NHTSA complaint 10598728 — filed 06/17/2014
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2005 Pontiac Grand Prix have transmission & power train problems?
Power Train is the #2 most-reported problem area on the 2005 Pontiac Grand Prix: 23 of 148 complaints on file (15.5%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2005 Pontiac Grand Prix have in total?
148 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 11 involved a crash, 5 involved a fire, 7 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.
