2008 Lexus GX Problems: 2 Known Issues
2008 model year · 3,100+ owner reports · Updated September 2026
According to Au7o's analysis of 3,100+ owner reports, the 2008 Lexus GX has 2 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Secondary Air Injection Pump Failure with 2,200 owner reports. Across all issues with published estimates, repair costs range from $400 to $2,000. DIY maintenance guides at au7o.io.
2008 · All trims · All engines
Choose the year and equipment for your written issues and visual request.
No email neededHow interest is saved
Interest applies to the selected vehicle and configuration; it is not a reservation. Voting stores a first-party identifier for up to 180 days to prevent repeat votes. No account or email is needed. Clearing cookies or using another device may count separately. Privacy
Visual coming soon
Your interest helps us choose what to build next.
Visual Known Issues · Coming soon
$4.99/month plus taxes at launch · No payment today
All 2 Known Issues
NHTSA Recalls1 recall
EQUIPMENT:OTHER:LABELS
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2009 SIENNA AND 2009 LEXUS GX PASSENGER VEHICLES. THE VEHICLE CAPACITY WEIGHT ON THE TIRE AND LOADING INFORMATION LABEL AND THE GVWR ON THE CERTIFICATION LABEL IS INSUFFICIENT FOR CERTAIN VEHICLES. SOME VEHICLES WERE ACCESSORIZED THROUGH VEHICLE PROCESSING CENTERS AND HAD ACCESSORIES INSTALLED THAT CAUSED THE VEHICLE TO EXCEED THE GVWR VALUE. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO 110, "TIRE SELECTION AND RIMS," AND 49 CFR PART 567.
Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.
Join 600+ people using Au7o to better understand their vehicles.
Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.
Other Lexus Models
Frequently Asked Questions
What are the most common Lexus GX problems?
According to Au7o's analysis of 3,100+ owner reports, the 2008 Lexus GX has 2 documented issues. The most frequently reported are: Secondary Air Injection Pump Failure, Center Differential Lock Actuator Failure. None are rated critical, but regular maintenance is recommended.
Is the Lexus GX reliable?
The 2008 Lexus GX has 2 known issues documented across 3,100+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Lexus GX problems?
Repair costs for known Lexus GX issues range from $400 to $2,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2003-2009 Lexus GX Secondary Air Injection Pump Failure?
The secondary air injection (SAI) system pump and switching valves fail due to moisture intrusion and corrosion. The SAI pump introduces fresh air into the exhaust during cold starts to reduce emissions, but the pump motor corrodes internally and the switching valves stick. This… Repairs typically run $800-$2,000. Severity: medium.
What is the 2003-2009 Lexus GX Center Differential Lock Actuator Failure?
The center differential lock actuator on the GX470 fails due to internal motor wear and electrical contact corrosion. When the actuator fails, the center diff lock cannot be engaged for low-range off-road use. The actuator is mounted on the transfer case and is exposed to road de… Repairs typically run $400-$1,000. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.