2005 PONTIAC BONNEVILLE, CLUNKING NOISE IN STEERING. PER DEALER, INTERMEDIATE SHAFT IS MANUFACTURER KNOWN PROBLEM, WHILE UNDER WARRANTY SHAFT WAS LUBED, THEN REPLACED, THEN LUBED AGAIN. PROBLEM PERSISTS AND IS WORSE IN COLD WEATHER. STEERING BECOMES LESS THAN ACCURATE PROVIDING IMPROPER ROAD FEEDBACK AND IMPROPER RESPONSE TO DRIVER INPUT. MY CONCERN IS THAT SHAFT WILL FAIL OR WILL CAUSE OTHER STE…
2005 Pontiac Bonneville steering problems
moderate 5 complaints filed with NHTSA · avg repair $700
Complaints
5
Recalls
0
Crashes
0
Avg fix
$700
What owners are reporting 4 most recent
TRYING TO MAKE HARD TURN EITHER LEFT OR RIGHT MOSTLY WHILE PARKING THE POWER STEERING LOCKS OR GETS REALLY TIGHT. PUT POWER STEERING FLUID IN. DOES NOTHING AT ALL. WHAT CAN I DO. LOOKING AT OTHER POST...OBVIOUSLY NOTHING. *TR
MAGNASTEER ISSUE: EXTREMELY DIFFICULT STEERING AT LOW SPEEDS (BELOW 15 MPH) WHEN VEHICLE IS AT OPERATING TEMPERATURE. SUMMER TIME CONDITIONS ENHANCE THIS PROBLEM. WHEN THE STEERING FLUID HEATS UP, THE STEERING BECOMES MORE DIFFICULT OR IMPOSSIBLE. THE MAGNASTEER RACK HAS BEEN REPLACED 1 TIME. THIS CURED THE PROBLEM TEMPORARILY (1000 MILES). THE DEALERSHIP HAS WORKED FEVERISHLY AND EXTREMELY WELL …
WHEN THE RIGHT FRONT WHEEL PASSES THROUGH STANDING WATER MOISTURE IS DEFLECTED ONTO THE SERPENTINE BELT. THE SERPENTINE BELT SLIPS CAUSING A LOSS OF POWER STEERING WHICH RENDERS THE VEHICLE NOT ABLE STEER UNTIL THE SERPENTINE BELT STOPS SLIPPING. MULTIPLE OCCURRENCES. *TR
Common questions
How serious is the steering problem on the 2005 Pontiac Bonneville?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $700 and most owners catch it before it causes a breakdown.
At what mileage does the steering typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $700 for steering 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 steering?
No active recalls currently cover steering 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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.
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