VehicleVerdict

2006 GMC T-Series problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 2 complaints on file for the 2006 GMC T-Series — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

2

NHTSA complaints

2

Recalls

0

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2006 compare to other T-Series years?

T-Series NHTSA complaints by model year, 2006 highlighted25 complaints1999: 1 complaints2000: 0 complaints2002: 25 complaints2006: 2 complaints2007: 1 complaints2009: 2 complaints2010: 2 complaints
T-Series NHTSA complaints by model year, 2006 highlighted. Red bars are years to avoid.

See all T-Series years to avoid →

What are the most common 2006 GMC T-Series problems?

ComponentComplaintsShare
Steering150%
Body & Structure150%

Does the 2006 GMC T-Series have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

06V311000BrakesAugust 16, 2006 · 1,369 units

Defect

CERTAIN TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." AN INTERNAL CONTROL AND CHECK VALVE WITHIN THE AIR BRAKE APPLICATION VALVE ASSEMBLY WAS CONFIGURED IMPROPERLY, PREVENTING AIR FROM FLOWING THROUGH THE BRAKE SYSTEM AS DESIGNED. IN THE EVENT OF AN EMERGENCY STOP, THE VEHICLE'S STOPPING DISTANCE WOULD BE INCREASED.

Consequence

IF STOPPING DISTANCE WAS LIMITED, A VEHICLE CRASH COULD RESULT.

Remedy

DEALERS WILL REPLACE THE AIR BRAKE APPLICATION VALVE ASSEMBLY ON C-SERIES OR REROUTE THE AIR BRAKE LINES ON T-SERIES FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 20, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463 AND ISUZU AT 1-800-255-6727.

06V254000BrakesJuly 13, 2006 · 1,184 units

Defect

CERTAIN MEDIUM DUTY TRUCKS EQUIPPED SR-7 BENDIX BRAKE VALVES, THE CHECK VALVE INSIDE THE VALVE CAVITY MAY NOT PROPERLY SET, CAUSING INTERNAL AIR LEAKAGE. IF THE CHECK VALVE DOES NOT PROPERLY SEAT, THE RESULTING LEAKAGE CAN CAUSE A DELAY IN THE APPLICATION OF THE SPRING BRAKES TO PARK THE VEHICLE AFTER OPERATOR PULLS THE DASH VALVE BUTTON.

Consequence

THE DELAYED PARKING BRAKE APPLICATION CAN OCCUR WITHOUT WARNING, LEADING TO UNINTENDED VEHICLE ROLLAWAY INCREASING THE RISK OF A CRASH.

Remedy

DEALERS WILL INSPECT THE VALVES AND REPLACE IT FREE OF CHARGE. THE RECALL BEGAN ON JULY 31, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR ISUZU AT 1-800-255-6727.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“AFTER 9 INCHES OF RAIN REPORTED YESTERDAY FOR NORTH MIAMI , FLORIDA HUMMER H-3 FOUND WITH LEAKING BIG AMOUNT OF WATER IN DASHBOARD AND FLOOR OF THE CAR. HUMMER H-3-YR 2006. *AK”

Complaint filed with NHTSA · Body & Structure · May 20, 2007

“I PAID 25K FOR THIS 2006 GMC SIERRA TRUCK WITH 8600 MILES, PURCHASED FROM TEXAN CHEVEROLET IN HUMBLE, TX JULY 4TH 2006. NOTICED IT ABOUT 6K TO 7K MILES. CLUNK NOISE DRIVERSIDE UNDER HOOD. NOTICE NOISE WHILE BACKING OUT, GOING OVER SMALL BUMPS OR IN TRANSIT AT A SLOW SPEED. ALSO NOTICED A CLUNK…”

Complaint filed with NHTSA · Steering · October 1, 2006

2006 GMC T-Series — common questions

Is the 2006 GMC T-Series reliable?

The record is thin — 2 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.

Does the 2006 GMC T-Series have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 2006 GMC T-Series. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.