Own a Toyota Grand Highlander Later Release in the Phoenix area? EZ Swap LLC repairs and maintains the Toyota Grand Highlander Later Release for model years 2025. Our shop at 9050 N 9th St handles everything from routine service to diagnostics and major repairs.
To help Grand Highlander Later Release owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 26 owner complaints on file for the Grand Highlander Later Release and 0 safety recall campaigns. The most-reported problem areas are engine (5), fuel/propulsion system (4), power train (4).
Most-Reported Toyota Grand Highlander Later Release Problems
These problem areas come up most often in NHTSA owner complaints for the Grand Highlander Later Release (all model years combined). Complaint counts reflect reports filed, not the share of vehicles affected, so popular and older models naturally have more.
| Problem area (NHTSA component) | Complaints | Share | |
|---|---|---|---|
| Engine | 5 | 19% | |
| Fuel/Propulsion System | 4 | 15% | |
| Power Train | 4 | 15% | |
| Structure | 3 | 11% | |
| Engine And Engine Cooling | 3 | 11% | |
| Lane Departure | 1 | 3% | |
| Wheels | 1 | 3% | |
| Steering | 1 | 3% |
Engine
5 of the 26 complaints (19%) mention the engine and cooling system. Engine and cooling complaints are best caught early in Phoenix, where heat pushes cooling systems and engine oil to their limits. We diagnose warning lights and check coolant, hoses and oil condition. See our check engine light diagnostics and oil change & maintenance pages.
Fuel/Propulsion System
4 of the 26 complaints (15%) mention the fuel system. Fuel system problems can cause stalling, hard starts and poor mileage. We test fuel delivery and related sensors to find the real cause. See our no-start diagnostics and check engine light diagnostics pages.
Power Train
4 of the 26 complaints (15%) mention the powertrain. Powertrain complaints can range from rough shifting to loss of drive. We road test, scan for stored codes and inspect fluids before recommending any repair. See our auto repair page.
Toyota Grand Highlander Later Release Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the Grand Highlander Later Release, so we do not have a model-specific ranking to show. These are the check engine codes we see most often on vehicles in Phoenix heat, and any of them can show up on a Toyota.
| Code | What it means |
|---|---|
| P0420 | Catalyst efficiency below threshold (bank 1) Often a worn catalytic converter, but failing oxygen sensors or exhaust leaks can set it too. Can cause an emissions test failure. |
| P0300 | Random or multiple cylinder misfire Worn spark plugs, failing ignition coils, fuel or vacuum problems. Do not ignore a flashing check engine light. |
| P0171 | System too lean (bank 1) Often a vacuum leak, dirty MAF sensor, weak fuel delivery or a failing oxygen sensor. |
| P0455 | EVAP system large leak Missing or loose gas cap, or a disconnected or cracked vapor hose. |
| P0128 | Coolant temperature below thermostat regulating temperature Usually a thermostat stuck open. Fix it to restore efficiency and cabin heat. |
| P0442 | EVAP system small leak Loose or worn gas cap, cracked hose or purge or vent valve. |
| P0301 | Cylinder 1 misfire Commonly a bad spark plug or ignition coil on that cylinder. |
| P0401 | EGR flow insufficient Clogged EGR passages or a stuck EGR valve. |
Got a check engine light on your Grand Highlander Later Release? A code is a clue, not a diagnosis, so we scan it and test the system before replacing anything. See our check engine light diagnostics.
Keeping a Toyota Grand Highlander Later Release Reliable in Phoenix
Arizona heat is the hardest test a Toyota will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a Grand Highlander Later Release that spends its life in stop-and-go Valley traffic needs maintenance earlier than the owner's manual's normal schedule suggests.
Our recommendation for Grand Highlander Later Release owners: follow the severe-service schedule, test the battery before every summer, inspect brakes and tires twice a year, and have any warning light diagnosed instead of ignored. If you are shopping for a used Toyota Grand Highlander Later Release, a pre-purchase inspection shows what the paperwork does not.
Toyota Grand Highlander Later Release Services at EZ Swap LLC
Get the details on our Phoenix Toyota Grand Highlander Later Release repair service, or choose a service below.
Toyota Grand Highlander Later Release FAQ
What are the most common problems with the Toyota Grand Highlander Later Release?
Based on NHTSA owner complaints, the most-reported problem areas for the Toyota Grand Highlander Later Release are engine (5), fuel/propulsion system (4), power train (4). Complaint counts reflect reports filed, not the share of vehicles affected.
Which Grand Highlander Later Release model years have the most complaints?
The Grand Highlander Later Release model years with the most NHTSA complaints on file are 2025. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Toyota Grand Highlander Later Release?
NHTSA complaints rarely cite specific codes for the Toyota Grand Highlander Later Release. On Phoenix vehicles in general, we see P0420, P0300 misfires, P0171 lean conditions and EVAP leaks such as P0455 and P0442 most often. Bring yours in and we will scan and test it.
Does the Toyota Grand Highlander Later Release have any safety recalls?
NHTSA lists 0 recall campaigns for the Toyota Grand Highlander Later Release across model years 2025. Each recall applies only to certain vehicles, so enter your VIN at nhtsa.gov/recalls to see if yours is affected.
Do you repair the Toyota Grand Highlander Later Release in Phoenix?
Yes. EZ Swap LLC repairs and maintains Toyota vehicles including the Grand Highlander Later Release, at 9050 N 9th St in Phoenix. Call or text (602) 246-9063 for an appointment.
Is a pre-purchase inspection worth it for a used Toyota Grand Highlander Later Release?
Yes. An inspection checks the engine, transmission, brakes, suspension, A/C and electrical system, and scans for stored codes, so you know the real condition before you buy.
How often should I service my Toyota Grand Highlander Later Release in Phoenix?
Follow the severe-service schedule in your owner's manual, since heat and stop-and-go driving count as severe use. Test the battery before summer and inspect brakes and tires regularly.
More Toyota Models We Service
Source: public complaint and recall records from the National Highway Traffic Safety Administration (nhtsa.gov). Counts reflect reports filed and do not predict the condition of any individual vehicle.